Buckle layout evaluation method and device, equipment, medium and product

Abstract

The invention discloses a buckle layout evaluation method and device, equipment, a medium and a product. The method comprises the steps that an air conditioner pipeline model corresponding to the air conditioner pipeline layout of the vehicle is obtained, and an air conditioner pipeline of the vehicle is fixed in a chassis of the vehicle through at least one buckle; performing random vibration excitation on the buckle constraint position in the air conditioner pipeline model to obtain vibration data generated by the air conditioner pipeline model under the random vibration excitation; an acceleration load is loaded at the buckle constraint position in the air conditioner pipeline model, and the bearing reaction of the buckle constraint position is obtained; and according to the vibration data and the reaction force, the buckle layout of the air conditioner pipeline is analyzed, a target evaluation result is obtained, and the target evaluation result is used for representing whether the buckle layout has safety risks or not. According to the scheme provided by the embodiment of the invention, quantitative analysis of the buckle layout can be realized, and the evaluation accuracy of the buckle layout is improved.

Description

Technical Field

[0001] The present application belongs to the field of vehicle air conditioning technology, and in particular, relates to a buckle layout evaluation method, device, equipment, medium and product. Background Art

[0002] To improve the comfort of drivers and passengers, vehicles are usually equipped with air conditioning systems, and air conditioning pipes are indispensable parts. Usually, air conditioning pipes are fixed to the chassis of the vehicle by buckles. In vehicle chassis with different structures, the layout of air conditioning pipes will change, and the corresponding buckle layout will also change.

[0003] In the related art, the reliability of the buckle layout is usually evaluated through manual experience to improve the safety of the vehicle. However, this method cannot comprehensively and accurately evaluate the buckle layout, and thus cannot timely discover problems such as cracking of the air conditioning pipe and loose buckles, which increases the safety risk of the vehicle. Summary of the invention

[0004] The embodiments of the present application provide a buckle layout evaluation method, device, equipment, medium and product, which can realize the quantitative analysis of the buckle layout and improve the evaluation accuracy of the buckle layout.

[0005] In a first aspect, an embodiment of the present application provides a method for evaluating a clip layout, the method comprising: obtaining an air-conditioning duct model corresponding to the air-conditioning duct layout of a vehicle, wherein the air-conditioning duct of the vehicle is fixed to the chassis of the vehicle by at least one clip; performing random vibration excitation on the clip constraint position in the air-conditioning duct model to obtain vibration data generated by the air-conditioning duct model under random vibration excitation; loading an acceleration load on the clip constraint position in the air-conditioning duct model to obtain a support reaction force at the clip constraint position; analyzing the clip layout of the air-conditioning duct according to the vibration data and the support reaction force to obtain a target evaluation result, wherein the target evaluation result is used to characterize whether the clip layout has a safety risk.

[0006] In a second aspect, an embodiment of the present application provides an evaluation device for a clip layout, the device comprising: a model acquisition module, used to acquire an air-conditioning duct model corresponding to the air-conditioning duct layout of a vehicle, wherein the air-conditioning duct of the vehicle is fixed to the chassis of the vehicle by at least one clip; a first excitation module, used to perform random vibration excitation on the clip constraint position in the air-conditioning duct model, and obtain vibration data generated by the air-conditioning duct model under random vibration excitation; a second excitation module, used to load an acceleration load on the clip constraint position in the air-conditioning duct model, and obtain the support reaction force of the clip constraint position; an evaluation module, used to analyze the clip layout of the air-conditioning duct according to the vibration data and the support reaction force, and obtain a target evaluation result, wherein the target evaluation result is used to characterize whether the clip layout has a safety risk.

[0007] In a third aspect, an embodiment of the present application provides an electronic device, comprising: a processor and a memory storing computer program instructions; when the processor executes the computer program instructions, the method for evaluating the buckle layout as described in the first aspect is implemented.

[0008] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium having computer program instructions stored thereon. When the computer program instructions are executed by a processor, the method for evaluating the buckle layout as described in the first aspect is implemented.

[0009] In a fifth aspect, an embodiment of the present application provides a computer program product. When instructions in the computer program product are executed by a processor of an electronic device, the electronic device executes the method for evaluating the buckle layout as described in the first aspect.

[0010] As can be seen from the above, in the embodiment of the present application, an air-conditioning pipeline model matching the air-conditioning pipeline layout of the vehicle is used to realize the evaluation of the buckle layout. The vibration data and support reaction force obtained under random vibration excitation and acceleration load excitation are combined to realize the quantitative evaluation of the buckle layout. Compared with the manual experience evaluation, the evaluation accuracy of the buckle layout is improved. In addition, the air-conditioning pipeline is installed in the chassis of the vehicle, and the excitation is the random vibration excitation of the road surface. In the embodiment of the present application, random vibration excitation is used to simulate the random vibration excitation of the road surface in the real scene, and the buckle constraint position in the air-conditioning pipeline model is excited, so that the evaluation result of the buckle layout is more in line with the actual operating conditions of the vehicle, and the evaluation accuracy of the buckle layout is improved. In addition, the support reaction force of the buckle constraint position can reflect the reliability of the buckle. In the embodiment of the present application, the support reaction force is obtained by loading the acceleration load on the buckle constraint position of the air-conditioning pipeline model. The buckle is detected by the support reaction force to see if there is a risk of falling off, and the evaluation accuracy of the buckle layout is improved.

[0011] It can be seen that the solution provided in the embodiment of the present application can realize the quantitative analysis of the buckle layout and improve the evaluation accuracy of the buckle layout. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solution of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0013] Figure 1 is a flow chart of a method for evaluating a buckle layout provided by an embodiment of the present application;

[0014] Figure 2This is a schematic diagram of a pipeline model of an inner layer inlet and outlet air pipe of an air conditioner provided by an embodiment of the present application;

[0015] Figure 3 is a curve diagram of random vibration excitation provided by an embodiment of the present application;

[0016] Figure 4 is a schematic diagram of displacement of a pipeline with a buckle provided in one embodiment of the present application;

[0017] Figure 5 is a schematic diagram of displacement of a pipeline without a buckle provided by an embodiment of the present application;

[0018] Figure 6 It is a stress schematic diagram of a pipeline with a buckle provided by an embodiment of the present application;

[0019] Figure 7 It is a stress diagram of a pipeline without a buckle provided by an embodiment of the present application;

[0020] Figure 8 It is a complete flow chart of a method for evaluating a buckle layout provided by an embodiment of the present application;

[0021] Fig. 9 is a structural schematic diagram of a buckle layout evaluation device provided in another embodiment of the present application;

[0022] Fig.10 It is a structural schematic diagram of an electronic device provided in yet another embodiment of the present application. DETAILED DESCRIPTION

[0023] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0025] For ease of understanding, before explaining the solution provided in the present application, the background of the solution provided in the present application is first explained.

[0026] The air-conditioning pipes in the vehicle play an important role in the normal operation of the vehicle's cooling system. The layout of parts such as the electric drive and air-conditioning box are different in vehicles of different types or models. The air-conditioning pipes are usually deployed under the vehicle chassis. The pipes can be fixed to the fixed holes of the chassis by fixing components such as plastic clips through press-fitting.

[0027] For vehicles with components such as front and rear electric drives or front and rear air-conditioning boxes, the corresponding thermal management air-conditioning pipeline lines are usually relatively long. The air-conditioning pipelines are connected and fixed to the chassis with plastic clips. During the driving process of the vehicle, due to the excitation of the road surface, the air-conditioning pipelines and the clips on the pipelines are prone to noise, cracking, loosening and other safety risks.

[0028] In order to improve the reliability of air-conditioning ducts and clip layouts, and thereby reduce vehicle safety risks, in related technologies, the layout of air-conditioning ducts is usually evaluated during the vehicle design phase to reduce safety risks such as noise, cracking, and loosening during actual vehicle operation, thereby shortening the vehicle production cycle and reducing design costs.

[0029] In the related art, the air conditioning duct and buckle layout are usually evaluated by manual experience. However, the chassis structure of vehicles of different types or models is different, and the layout of the air conditioning duct and the number, position, form, etc. of the buckles are different. It is not comprehensive to evaluate the buckle layout only by experience, and it is easy to have problems of over-design (for example, too many buckles) or under-design (for example, insufficient number of buckles). Over-design will increase the design cost of the vehicle, while under-design will cause the air conditioning duct to vibrate, crack, and loosen the buckles, increasing the safety risk of the vehicle.

[0030] In response to the above problems, the embodiments of the present application provide a method, device, equipment, medium and product for evaluating the buckle layout. The present application uses simulation methods to evaluate the rationality of the buckle connection in the air-conditioning duct in the early stage of vehicle design. By performing random vibration simulation and static strength simulation on the air-conditioning duct, the support reaction force of different forms of buckle constraint positions, the mode, amplitude and stress of the duct are extracted and analyzed to achieve an accurate evaluation of the rationality and reliability of the buckle layout, shorten the vehicle production cycle, reduce design costs, improve the safety and reliability of the vehicle, and reduce the safety risks of the vehicle.

[0031] The following first introduces the buckle layout evaluation method provided in the embodiment of the present application. Among them, the pipeline evaluation system can be used as the execution subject of the method provided in the embodiment of the present application.

[0032] Figure 1 FIG. 1 is a flow chart of a method for evaluating a buckle layout provided by an embodiment of the present application. Figure 1 As shown, the method includes the following steps: S101 to S104:

[0033] Step S101, obtaining an air conditioning pipeline model corresponding to the air conditioning pipeline layout of the vehicle.

[0034] In step S101, the vehicle is an unfinished vehicle, and its corresponding air conditioning pipeline layout is an air conditioning pipeline layout pre-set by a developer. After the vehicle is manufactured, the air conditioning pipeline of the vehicle is fixed in the chassis of the vehicle by at least one buckle.

[0035] For vehicles of different types or models, the corresponding air-conditioning pipe layouts are different. In an embodiment of the present application, an air-conditioning pipe model that is compatible with the air-conditioning pipe layout of the vehicle is used to simulate the vehicle's buckle layout to detect the rationality and reliability of the buckle layout.

[0036] In step S101, the air conditioning pipeline model is a simulation model of the air conditioning pipeline layout of the vehicle, for example, Figure 2 The figure shows a pipeline model of the inner air inlet and outlet pipes of the air conditioner. In addition to the inner air inlet and outlet pipes with outer foam, the pipeline model also has a connecting buckle and multiple buckles (such as Figure 2 Buckle 1, buckle 2, buckle 3).

[0037] In one example, an air-conditioning pipe model can be constructed in real time based on the vehicle's air-conditioning pipe layout. For example, the pipe evaluation system can obtain relevant data on the vehicle's air-conditioning pipe layout, such as the material of the pipe, the inclination angle of the pipe, the position of the buckle, the number of buckles, the buckle material, etc., and then build the air-conditioning pipe model based on the relevant data of the air-conditioning pipe layout.

[0038] In another example, the air-conditioning duct model can adopt the air-conditioning duct model of a chassis with the same air-conditioning duct layout. For example, vehicle A and vehicle B have the same chassis structure, and the number and installation position of the front and rear electric drives and front and rear air-conditioning boxes of vehicle A are also the same as those of vehicle B. The air-conditioning duct model corresponding to vehicle B can be used to evaluate the snap-on layout of vehicle A.

[0039] In another example, the air-conditioning pipe model can be obtained by adjusting the air-conditioning pipe model of a chassis with a similar air-conditioning pipe layout. For example, if vehicle A and vehicle B have similar chassis structures, the air-conditioning pipe model corresponding to vehicle B can be adjusted to obtain the air-conditioning pipe model corresponding to vehicle A.

[0040] Step S102 , performing random vibration excitation on the buckle constraint position in the air-conditioning pipeline model to obtain vibration data generated by the air-conditioning pipeline model under the random vibration excitation.

[0041] When a vehicle is driving on the road, the road surface will excite the vehicle. Usually, the road surface excitation is a non-periodic random vibration excitation. In order to make the evaluation result of the buckle layout more consistent with the real scene, in the embodiment of the present application, the buckle constraint position in the air conditioning pipeline model is excited by random vibration. Among them, the buckle constraint position is the position of the constraint component on the buckle, which can fix the buckle in the vehicle chassis.

[0042] It should be noted that since road excitation is usually non-periodic random vibration excitation, in the embodiment of the present application, the air-conditioning pipeline is loaded with random vibration excitation based on probability statistics, and the random vibration analysis is performed on it, and the analysis result is more consistent with the actual operation of the vehicle.

[0043] The above-mentioned random vibration excitation can be determined by extracting acceleration PSD (Power Spectral Density) from experimental data, or by PSD in the national standard. In one example, Figure 3 shows a graph of random vibration excitation, given by Figure 3 It can be seen that the random vibration excitation follows a Gaussian distribution. By performing random vibration simulation on the air conditioning pipeline model, vibration data (e.g., vibration amplitude at the buckle constraint position, stress at the buckle constraint position) can be obtained, thereby obtaining the value of 1σ, which is usually multiplied by 3 to obtain the value of 3σ, which covers a statistical probability of 99.737%.

[0044] In step S102, the vibration data includes the vibration amplitude of the buckle constraint position and the stress of the buckle constraint position, wherein the vibration amplitude of the buckle constraint position can represent the displacement of the air conditioning pipeline. As an example, Figure 4 and Figure 5A schematic diagram of the displacement of a pipeline with a buckle and a schematic diagram of the displacement of a pipeline without a buckle are respectively shown; Figure 6 and Figure 7 A stress schematic diagram of a pipeline with a buckle and a stress schematic diagram of a pipeline without a buckle are respectively shown.

[0045] Through step S102, the vibration amplitude of the buckle constraint position in the vibration data is analyzed to evaluate the risk of fracture of the air-conditioning pipeline; the stress of the buckle constraint position in the vibration data is analyzed to evaluate whether the vibration reserved installation gap in the air-conditioning pipeline is set reasonably, and then the noise level of the air-conditioning pipeline is evaluated.

[0046] Step S103, loading an acceleration load at the buckle constraint position in the air conditioning pipeline model to obtain a support reaction force at the buckle constraint position.

[0047] The installation direction of the buckle is usually the z direction, that is, the direction perpendicular to the vehicle chassis. In the embodiment of the present application, the acceleration load is the maximum acceleration load in the z direction to extract the support reaction force at the buckle constraint position, and then evaluate the risk of the buckle falling off by comparing the support reaction force with the maximum insertion and extraction force corresponding to the buckle.

[0048] Step S104, analyzing the buckle layout of the air conditioning pipeline according to the vibration data and the support reaction force to obtain a target evaluation result.

[0049] In step S104, the target evaluation result is used to characterize whether there is a safety risk in the buckle layout, and the target evaluation result may include whether the buckle layout has a safety risk, and whether the buckle layout does not have a safety risk. In the case that there is a safety risk in the buckle layout, the safety risk of the buckle layout can be reduced by adding new buckles, wherein the position of the newly added buckles can be determined by vibration data and / or support reaction force.

[0050] In step S104, by analyzing the vibration data, it is possible to evaluate whether there is a risk of breakage of the air-conditioning pipeline and the noise level of the air-conditioning pipeline; the risk of the buckle falling off can be evaluated based on the support reaction force. By evaluating the above three aspects of the air-conditioning pipeline, a quantitative evaluation of the buckle layout is achieved, thereby improving the accuracy of the buckle layout evaluation.

[0051] Based on the scheme defined by the above steps S101 to S104, it can be learned that in the embodiment of the present application, an air-conditioning pipeline model matching the air-conditioning pipeline layout of the vehicle is used to realize the evaluation of the buckle layout. The vibration data and the support reaction force obtained under random vibration excitation and acceleration load excitation are combined to realize the quantitative evaluation of the buckle layout. Compared with the manual experience evaluation, the evaluation accuracy of the buckle layout is improved. In addition, the air-conditioning pipeline is installed in the chassis of the vehicle, and the excitation is the random vibration excitation of the road surface. In the embodiment of the present application, random vibration excitation is used to simulate the random vibration excitation of the road surface in the real scene, and the buckle constraint position in the air-conditioning pipeline model is excited, so that the evaluation result of the buckle layout is more in line with the actual operating conditions of the vehicle, and the evaluation accuracy of the buckle layout is improved. In addition, the support reaction force of the buckle constraint position can reflect the reliability of the buckle. In the embodiment of the present application, the support reaction force is obtained by loading the acceleration load on the buckle constraint position of the air-conditioning pipeline model, and the buckle is detected by the support reaction force to detect whether there is a risk of falling off, thereby improving the evaluation accuracy of the buckle layout.

[0052] It can be seen that the solution provided in the embodiment of the present application can realize the quantitative analysis of the buckle layout and improve the evaluation accuracy of the buckle layout.

[0053] The following is an introduction to the implementation process of the method provided in the embodiment of the present application.

[0054] In an embodiment of the present application, the buckle layout is simulated and analyzed through the air-conditioning pipeline model. Before the analysis, the pipeline evaluation system obtains the air-conditioning pipeline layout data of the vehicle, and then performs finite element structure simulation on the air-conditioning pipeline layout data to obtain finite element structure data; and then constructs the air-conditioning pipeline model based on the finite element structure data.

[0055] In the above embodiment, the air conditioning pipeline layout data may include but is not limited to the material of the air conditioning pipeline, the inclination angle of the pipeline, the position of the buckle, the number of buckles, the material of the buckle, etc.

[0056] As an example, researchers perform data analysis on the vehicle's air-conditioning pipes to obtain air-conditioning pipe layout data, and input the air-conditioning pipe layout data into a pipe evaluation system. The pipe evaluation system performs finite element analysis on the air-conditioning pipe layout data, and models the air-conditioning pipes and buckles according to the finite element structural data obtained from the analysis to obtain an air-conditioning pipe model.

[0057] After obtaining the air-conditioning pipeline model, the pipeline evaluation system first performs modal analysis on the air-conditioning pipeline model.

[0058] In one embodiment, the pipeline evaluation system implements modal analysis of the air conditioning pipeline model through the following steps S1 to S4:

[0059] Step S1, performing modal analysis on the air conditioning pipeline model to obtain the modal frequency corresponding to the air conditioning pipeline model.

[0060] In step S1, the modal frequency corresponding to the air conditioning pipeline model is the natural frequency of the air conditioning pipeline. In the embodiment of the present application, an exciter can be used to excite each order mode of the air conditioning pipeline, and a modal analysis is performed through a modal analysis software to obtain the modal frequency corresponding to the air conditioning pipeline model, wherein the modal analysis method can be any one of dry modal analysis, wet modal analysis, and unidirectional fluid-solid coupling modal analysis.

[0061] Step S2: When the modal frequency is less than a preset modal frequency threshold, buckle adjustment information is generated.

[0062] In step S2, the buckle adjustment information may be prompt information for prompting the R&D personnel to adjust one or more of the material, shape, quantity, and position of the buckle. In addition to being used as a prompt, the buckle adjustment information may also include one or more of the above data such as the material, shape, quantity, and position of the buckle to be adjusted.

[0063] Step S3, obtaining the adjusted air conditioning pipeline model.

[0064] In step S3, the adjusted air-conditioning pipeline model is a model obtained by the user adjusting the buckle position and / or the buckle quantity in the air-conditioning pipeline model according to the buckle adjustment information.

[0065] The above steps S1 to S3 are repeatedly performed until the modal frequency of the air conditioning pipeline model is greater than or equal to a preset modal frequency threshold.

[0066] Step S4, when the modal frequency is greater than or equal to a preset modal frequency threshold, executing a step of analyzing the buckle layout of the air conditioning pipeline according to the vibration data and the support reaction force.

[0067] It can be seen from the above steps S1 to S4 that in the process of analyzing the buckle layout of the air-conditioning pipeline, the air-conditioning pipeline needs to be made to resonate, wherein, when the modal frequency of the air-conditioning pipeline is low, the air-conditioning pipeline cannot resonate. Therefore, in the embodiment of the present application, the air-conditioning pipeline model will be subjected to random vibration excitation and static strength analysis only when the modal frequency of the air-conditioning pipeline is higher than a certain limit value (i.e., the above-mentioned modal frequency threshold value); and when the modal frequency of the air-conditioning pipeline is low, it indicates that the buckle position and / or the number of buckles in the air-conditioning pipeline are set unreasonably, and the buckle position and / or the number of buckles in the air-conditioning pipeline model need to be adjusted so that the modal frequency of the air-conditioning pipeline is higher than the above-mentioned limit value and the air-conditioning pipeline can resonate.

[0068] After obtaining the air-conditioning pipeline model, the pipeline simulation system can load random vibration excitation and acceleration load on the air-conditioning pipeline model to obtain the vibration data and support reaction force corresponding to the air-conditioning pipeline model, and then analyze the buckle layout of the air-conditioning pipeline based on the vibration data and support reaction force.

[0069] In one embodiment, the pipeline simulation system can evaluate the fracture risk of the buckle constraint position according to the stress corresponding to the buckle constraint position to obtain the fracture risk level; evaluate the collision risk corresponding to the buckle constraint position according to the vibration amplitude of the buckle constraint position to obtain the collision risk level; evaluate the buckle detachment risk of the buckle constraint position according to the support reaction force to obtain the buckle detachment risk level; finally, determine the target evaluation result according to the fracture risk level, collision risk level and buckle detachment risk level.

[0070] It should be noted that, in the above embodiment, the evaluation order of the fracture risk level, the collision risk level and the buckle falling risk level can be set according to actual needs, and can be parallel or serial.

[0071] The following is an introduction to the assessment of the above three types of risk levels.

[0072] Regarding the fracture risk level, in the embodiment of the present application, the fracture risk level includes a first fracture risk level and a second fracture risk level.

[0073] In one embodiment, the pipeline assessment system obtains the yield strength corresponding to the pipeline material of the air conditioning pipeline, and compares the stress at the buckle constraint position with the yield strength. Wherein, when the stress corresponding to the buckle constraint position is less than the yield strength, the fracture risk level corresponding to the buckle constraint position is determined to be the first fracture risk level; when the stress corresponding to the buckle constraint position is greater than or equal to the yield strength, the fracture risk level corresponding to the buckle constraint position is determined to be the second fracture risk level.

[0074] In the above embodiment, the yield strength is the yield limit of the metal material when the yield phenomenon occurs, that is, the stress that resists micro plastic deformation. By comparing the stress corresponding to the buckle constraint position with the yield strength, it can be determined whether the pipeline at the buckle constraint position has a risk of fracture, and the fracture risk level can be determined by comparing the root mean square stress value of 3σ with the yield strength. Among them, the first fracture risk level is lower than the second fracture risk level, that is, when the stress at the buckle constraint position is less than the yield strength, the risk of fracture of the pipeline corresponding to the buckle constraint position is low.

[0075] Regarding the collision risk level, in the embodiment of the present application, the collision risk level includes a first collision risk level and a second collision risk level.

[0076] In one embodiment, the pipeline assessment system obtains the pipeline installation spacing corresponding to the air-conditioning pipeline layout; then, based on the correlation between the vibration amplitude and the vibration displacement, the vibration displacement corresponding to the buckle constraint position is determined, and the vibration displacement of the buckle constraint position is compared with the size of the pipeline installation spacing, wherein, when the vibration displacement corresponding to the buckle constraint position is less than the pipeline installation spacing, the collision risk level corresponding to the buckle constraint position is determined to be the first collision risk level; when the vibration displacement corresponding to the buckle constraint position is greater than or equal to the pipeline installation spacing, the fracture risk level corresponding to the buckle constraint position is determined to be the second collision risk level.

[0077] In the above embodiment, the pipeline installation spacing is the pipeline vibration reserved installation spacing. If the vibration amplitude of the pipeline exceeds the pipeline vibration reserved installation spacing, the pipeline noise is relatively large. That is, in the embodiment of the present application, by comparing the vibration displacement corresponding to the buckle constraint position with the pipeline installation spacing, it can be determined whether the pipeline at the buckle constraint position has a collision risk, and the collision risk level can be determined by comparing the displacement of 3σ with the size of the pipeline installation spacing. Among them, the first collision risk level is lower than the second collision risk level, that is, when the vibration displacement corresponding to the buckle constraint position is less than the pipeline installation spacing, the pipeline corresponding to the buckle constraint position has a lower risk of knocking collision with the chassis.

[0078] Regarding the buckle falling-off risk level, in the embodiment of the present application, the buckle falling-off risk level includes a first buckle falling-off risk level and a second buckle falling-off risk level.

[0079] In one embodiment, the pipeline assessment system obtains the buckle plug-in and pull-out force corresponding to the buckle constraint position, and compares the support reaction force at the buckle constraint position with the buckle plug-in and pull-out force, wherein, when the support reaction force is smaller than the buckle plug-in and pull-out force, the buckle fall-off risk level corresponding to the buckle constraint position is determined to be the first buckle fall-off risk level; when the support reaction force is greater than or equal to the buckle plug-in and pull-out force, the buckle fall-off risk level corresponding to the buckle constraint position is determined to be the second buckle fall-off risk level.

[0080] In the above embodiment, the direction of action of the buckle plugging and unplugging force on the buckle constraint position is opposite to the direction of action of the support reaction force on the buckle constraint position. When the support reaction force corresponding to the buckle is large, the buckle is easy to fall off, thereby failing to stably fix the air conditioning pipeline in the vehicle chassis. Therefore, in the embodiment of the present application, by comparing the size of the buckle plugging and unplugging force and the support reaction force, the risk of the buckle falling off can be determined. Among them, the first buckle falling off risk level is lower than the second buckle falling off risk level, that is, when the support reaction force is less than the buckle plugging and unplugging force, it can be determined that the buckle is reliably installed and not easy to fall off.

[0081] After respectively obtaining the fracture risk level, collision risk level and buckle detachment risk level, the pipeline assessment system can determine the target assessment results according to the above three risk levels.

[0082] In one embodiment, when the fracture risk level is lower than a preset fracture risk level threshold, and the collision risk level is lower than a preset collision risk level threshold, and the buckle fall-off risk level is lower than a preset buckle fall-off risk level threshold, it is determined that the buckle layout does not have a safety risk; when the fracture risk level is higher than the preset fracture risk level threshold, and / or the collision risk level is higher than the preset collision risk level threshold, and / or the buckle fall-off risk level is higher than the preset buckle fall-off risk level threshold, it is determined that the buckle layout has a safety risk.

[0083] That is, in the embodiment of the present application, when the air-conditioning pipeline has at least one of the risks of breakage, collision, and buckle falling off, it can be determined that the current buckle layout is unreasonable, and using this buckle layout will increase the safety risk of the vehicle.

[0084] Furthermore, after analyzing the clip layout of the air-conditioning pipe according to the vibration data and the support reaction force to obtain the target evaluation result, when the target evaluation result indicates that there is a safety risk in the clip layout, the pipe evaluation system determines the new clip position in the air-conditioning pipe based on the vibration amplitude, stress and at least one of the support reaction force of the clip constraint position.

[0085] In one embodiment, the pipeline evaluation system can obtain a target position in the air-conditioning pipeline that meets preset conditions, and then determine the target position as a newly added position of the buckle.

[0086] In the above embodiments, the preset conditions include: the stress corresponding to the buckle constraint position is greater than or equal to the yield strength, and / or the vibration displacement corresponding to the buckle constraint position is greater than or equal to the preset pipeline installation spacing, and / or the support reaction force is greater than or equal to the preset target position of the buckle plug-in and pull-out force.

[0087] In addition, in the embodiments of the present application, in addition to reducing safety risks by adding buckles, safety risks can also be reduced by adjusting the material, thickness, etc. of the buckles and / or pipelines, for example, increasing the thickness of the buckles, using buckles with stronger vibration resistance, etc.

[0088] In another embodiment, when it is determined that the buckle layout does not pose a safety risk, the R&D personnel may remove one or more buckles in the air-conditioning pipeline model to obtain an adjusted air-conditioning pipeline model, and then use the method provided in the embodiment of the present application to perform random vibration excitation and acceleration load excitation on the adjusted air-conditioning pipeline model to evaluate the rationality and reliability of the buckle layout. If there is a safety risk in the air-conditioning pipeline after the buckles are removed, it can be determined that the buckle layout corresponding to the air-conditioning pipeline model before adjustment is the most reasonable and reliable; if there is no safety risk in the air-conditioning pipeline after the buckles are removed, the scheme provided in the embodiment of the present application can be continued to be used to continue the evaluation and model adjustment until the air-conditioning pipeline model with a safety risk is determined, and the buckle layout corresponding to the air-conditioning pipeline model before the last adjustment is used as the final buckle layout to reduce the design cost.

[0089] This completes the introduction of the solutions provided in the embodiments of the present application.

[0090] As an example, Figure 8 A complete flow chart of the method provided in the embodiment of the present application is shown as follows: Figure 8 As shown, the overall process includes the following steps S801 to S808:

[0091] Step S801, assembling a geometric model of the air conditioning pipeline to obtain air conditioning pipeline layout data;

[0092] Step S802, performing finite element structural simulation on the air conditioning pipeline layout data to obtain finite element structural data;

[0093] Step S803, constructing an air conditioning pipeline model based on the finite element structure data;

[0094] Step S804, performing modal analysis on the air conditioning pipeline model, and adjusting the modal frequency so that the modal frequency is greater than the modal frequency threshold;

[0095] Step S805, performing random vibration excitation and static strength analysis on the air conditioning pipeline model to obtain vibration data and support reaction force;

[0096] Step S806, analyzing the vibration data and the support reaction force data to determine whether the buckle layout is reasonable. If the buckle layout is reasonable, it is determined that the buckle layout design is reliable and there is no safety risk. If the buckle layout is unreasonable, it is determined that there is a safety risk in the buckle layout, and step S807 needs to be executed to optimize the model.

[0097] Step S807, adjusting the position, quantity, material, thickness of the buckles in the air conditioning pipeline model and the shape and material of the pipeline, and optimizing the air conditioning pipeline model.

[0098] From the above content, it can be seen that in the embodiment of the present application, simulation means are used to evaluate the rationality of the snap connection of the air conditioning pipeline in the early stage of design, so as to avoid problems such as noise, cracking, loosening, etc. in actual work, and lightweight design evaluation can be performed under certain circumstances to shorten the production cycle of the vehicle and reduce the design cost of the vehicle. Moreover, in the embodiment of the present application, simulation evaluation can effectively evaluate whether to add snaps or remove snaps, so as to avoid product risks caused by unnecessary cost reduction and other reasons.

[0099] The present application also provides a buckle layout evaluation device, such as Fig. 9 As shown, the device 900 includes: a model acquisition module 901 , a first excitation module 902 , a second excitation module 903 and an evaluation module 904 .

[0100] A model acquisition module 901 is used to acquire an air conditioning pipeline model corresponding to the air conditioning pipeline layout of the vehicle, wherein the air conditioning pipeline of the vehicle is fixed in the chassis of the vehicle by at least one buckle;

[0101] The first excitation module 902 is used to perform random vibration excitation on the buckle constraint position in the air conditioning pipeline model to obtain vibration data generated by the air conditioning pipeline model under the random vibration excitation;

[0102] The second excitation module 903 is used to load an acceleration load at a buckle constraint position in the air conditioning pipeline model to obtain a support reaction force at the buckle constraint position;

[0103] The evaluation module 904 is used to analyze the buckle layout of the air-conditioning pipeline according to the vibration data and the support reaction force to obtain a target evaluation result, wherein the target evaluation result is used to characterize whether there is a safety risk in the buckle layout.

[0104] In one embodiment, the vibration data includes: the vibration amplitude of the buckle constraint position and the stress of the buckle constraint position, wherein the evaluation module includes: a first evaluation module, a second evaluation module, a third evaluation module and a target evaluation module. The first evaluation module is used to evaluate the fracture risk of the buckle constraint position according to the vibration amplitude corresponding to the buckle constraint position to obtain the fracture risk level; the second evaluation module is used to evaluate the collision risk corresponding to the buckle constraint position according to the stress of the buckle constraint position to obtain the collision risk level; the third evaluation module is used to evaluate the buckle fall-off risk of the buckle constraint position according to the support reaction force to obtain the buckle fall-off risk level; the target evaluation module is used to determine the target evaluation result according to the fracture risk level, the collision risk level and the buckle fall-off risk level.

[0105] In one embodiment, the fracture risk level includes a first fracture risk level and a second fracture risk level, and the first evaluation module is specifically used to obtain the yield strength corresponding to the pipe material of the air-conditioning pipe; when the stress corresponding to the buckle constraint position is less than the yield strength, the fracture risk level corresponding to the buckle constraint position is determined to be the first fracture risk level; when the stress corresponding to the buckle constraint position is greater than or equal to the yield strength, the fracture risk level corresponding to the buckle constraint position is determined to be the second fracture risk level, wherein the first fracture risk level is lower than the second fracture risk level.

[0106] In one embodiment, the collision risk level includes a first collision risk level and a second collision risk level, and the second evaluation module is specifically used to obtain the pipeline installation spacing corresponding to the air-conditioning pipeline layout; determine the vibration displacement corresponding to the buckle constraint position according to the correlation between the vibration amplitude and the vibration displacement; when the vibration displacement corresponding to the buckle constraint position is less than the pipeline installation spacing, determine the collision risk level corresponding to the buckle constraint position as the first collision risk level; when the vibration displacement corresponding to the buckle constraint position is greater than or equal to the pipeline installation spacing, determine the fracture risk level corresponding to the buckle constraint position as the second collision risk level, wherein the first collision risk level is lower than the second collision risk level.

[0107] In one embodiment, the buckle-off risk level includes a first buckle-off risk level and a second buckle-off risk level, and the third evaluation module is specifically used to obtain the buckle insertion and extraction force corresponding to the buckle constraint position; when the support reaction force is less than the buckle insertion and extraction force, the buckle-off risk level corresponding to the buckle constraint position is determined to be the first buckle-off risk level; when the support reaction force is greater than or equal to the buckle insertion and extraction force, the buckle-off risk level corresponding to the buckle constraint position is determined to be the second buckle-off risk level, wherein the first buckle-off risk level is lower than the second buckle-off risk level.

[0108] In one embodiment, the target assessment module is specifically used to determine that there is no safety risk in the buckle layout when the fracture risk level is lower than a preset fracture risk level threshold, and the collision risk level is lower than a preset collision risk level threshold, and the buckle fall-off risk level is lower than a preset buckle fall-off risk level threshold; and to determine that there is a safety risk in the buckle layout when the fracture risk level is higher than a preset fracture risk level threshold, and / or the collision risk level is higher than a preset collision risk level threshold, and / or the buckle fall-off risk level is higher than a preset buckle fall-off risk level threshold.

[0109] In one embodiment, the evaluation device for the buckle layout also includes: a buckle adding module, which is used to analyze the buckle layout of the air-conditioning duct according to the vibration data and the support reaction force, and after obtaining the target evaluation result, when the target evaluation result indicates that the buckle layout has a safety risk, determine the additional buckle position in the air-conditioning duct according to at least one of the vibration amplitude, stress and support reaction force of the buckle constraint position.

[0110] In one embodiment, the buckle adding module is specifically used to obtain a target position in the air-conditioning pipeline that meets preset conditions, wherein the preset conditions include: the stress corresponding to the buckle constraint position is greater than or equal to the yield strength, and / or the vibration displacement corresponding to the buckle constraint position is greater than or equal to the preset pipeline installation spacing, and / or the support reaction force is greater than or equal to the preset buckle plug-in and pull-out force target position; the target position is determined as the buckle added position.

[0111] In one embodiment, the buckle layout evaluation device further includes: a model adjustment module, which is used to analyze the buckle layout of the air-conditioning pipeline according to the vibration data and the support reaction force, and before obtaining the target evaluation result, perform the following steps:

[0112] Step S1, performing modal analysis on the air conditioning pipeline model to obtain the modal frequency corresponding to the air conditioning pipeline model;

[0113] Step S2, generating buckle adjustment information when the modal frequency is less than a preset modal frequency threshold;

[0114] Step S3, obtaining an adjusted air conditioning pipeline model, wherein the adjusted air conditioning pipeline model is a model obtained by the user adjusting the buckle position and / or the buckle quantity in the air conditioning pipeline model according to the buckle adjustment information;

[0115] The above steps S1 to S3 are repeatedly performed until the modal frequency of the air conditioning pipeline model is greater than or equal to a preset modal frequency threshold.

[0116] In one embodiment, the model adjustment module is also used to perform a step of analyzing the snap-on layout of the air-conditioning pipeline according to the vibration data and the support reaction force when the modal frequency is greater than or equal to a preset modal frequency threshold.

[0117] In one embodiment, the model acquisition module is specifically used to obtain the air conditioning pipeline layout data of the vehicle; perform finite element structure simulation on the air conditioning pipeline layout data to obtain finite element structure data; and construct an air conditioning pipeline model based on the finite element structure data.

[0118] The buckle layout evaluation device provided in the embodiment of the present application can implement each process implemented in the aforementioned method embodiment, and will not be described again here to avoid repetition.

[0119] The technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0120] Fig.10 A schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present application is shown.

[0121] The electronic device may include a processor 1001 and a memory 1002 storing computer program instructions.

[0122] Specifically, the processor 1001 may include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application.

[0123] The memory 1002 may include a large capacity memory for data or instructions. By way of example and not limitation, the memory 1002 may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive or a combination of two or more of these. In appropriate cases, the memory 1002 may include a removable or non-removable (or fixed) medium. In appropriate cases, the memory 1002 may be inside or outside the integrated gateway disaster recovery device. In a specific embodiment, the memory 1002 is a non-volatile solid-state memory.

[0124] The memory may include read-only memory (ROM), random access memory (RAM), magnetic disk storage media devices, optical storage media devices, flash memory devices, electrical, optical or other physical / tangible memory storage devices. Thus, typically, the memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoded with software including computer-executable instructions, and when the software is executed (e.g., by one or more processors), it is operable to perform the operations described with reference to the method according to an aspect of the present disclosure.

[0125] The processor 1001 reads and executes computer program instructions stored in the memory 1002 to implement any one of the buckle layout evaluation methods in the above embodiments.

[0126] In one example, the electronic device may further include a communication interface 1003 and a bus 1010. Fig.10 As shown, the processor 1001, the memory 1002, and the communication interface 1003 are connected via a bus 1010 and communicate with each other.

[0127] The communication interface 1003 is mainly used to implement communication between various modules, devices, units and / or equipment in the embodiments of the present application.

[0128] Bus 1010 includes hardware, software or both, and the parts of electronic equipment are coupled to each other.For example, but not limitation, bus may include accelerated graphics port (AGP) or other graphics bus, enhanced industrial standard architecture (EISA) bus, front side bus (FSB), hypertransport (HT) interconnection, industrial standard architecture (ISA) bus, infinite bandwidth interconnection, low pin count (LPC) bus, memory bus, micro channel architecture (MCA) bus, peripheral component interconnection (PCI) bus, PCI-Express (PCI-X) bus, serial advanced technology attachment (SATA) bus, video electronics standard association local (VLB) bus or other suitable bus or two or more of these combinations. In appropriate cases, bus 1010 may include one or more buses. Although the present application embodiment describes and shows a specific bus, the application considers any suitable bus or interconnection.

[0129] In addition, in combination with the buckle layout evaluation method in the above embodiment, the embodiment of the present application can provide a computer-readable storage medium for implementation. The computer-readable storage medium stores computer program instructions; when the computer program instructions are executed by the processor, any of the buckle layout evaluation methods in the above embodiment is implemented.

[0130] In addition, in combination with the buckle layout evaluation method in the above embodiment, the present application embodiment can provide a computer program product for implementation. When the instructions in the computer program product are executed by the processor of the electronic device, the electronic device executes and implements any of the buckle layout evaluation methods in the above embodiment.

[0131] It should be clear that the present application is not limited to the specific configuration and processing described above and shown in the figures. For the sake of simplicity, a detailed description of the known method is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present application is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps after understanding the spirit of the present application.

[0132] The functional modules shown in the above-described block diagram can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, it can be, for example, an electronic circuit, an application specific integrated circuit (ASIC), appropriate firmware, a plug-in, a function card, etc. When implemented in software, the elements of the present application are programs or code segments that are used to perform the required tasks. Programs or code segments can be stored in machine-readable media, or transmitted on a transmission medium or a communication link by a data signal carried in a carrier wave. "Machine-readable media" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, optical fiber media, radio frequency (RF) links, etc. Code segments can be downloaded via computer networks such as the Internet, intranets, etc.

[0133] It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiment, or in a different order from the embodiment, or several steps can be performed simultaneously.

[0134] The above reference is made to the flowchart and / or block diagram of the evaluation method, device, equipment, medium and product of the buckle layout according to the embodiment of the present disclosure, which describes various aspects of the present disclosure. It should be understood that each box in the flowchart and / or block diagram and the combination of each box in the flowchart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device to produce a machine so that these instructions executed by the processor of the computer or other programmable data processing device enable the implementation of the function / action specified in one or more boxes of the flowchart and / or block diagram. Such a processor can be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor, or a field programmable logic circuit. It can also be understood that each box in the block diagram and / or flowchart and the combination of boxes in the block diagram and / or flowchart can also be implemented by dedicated hardware that performs a specified function or action, or can be implemented by a combination of dedicated hardware and computer instructions.

[0135] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.

Claims

1. A method for evaluating a buckle layout, characterized in that: include: Acquire an air conditioning pipeline model corresponding to an air conditioning pipeline layout of a vehicle, wherein the air conditioning pipeline of the vehicle is fixed in a chassis of the vehicle by at least one buckle; Performing random vibration excitation on the buckle constraint position in the air-conditioning pipeline model to obtain vibration data generated by the air-conditioning pipeline model under the random vibration excitation; Applying an acceleration load to a buckle constraint position in the air conditioning pipeline model to obtain a support reaction force at the buckle constraint position; The buckle layout of the air-conditioning pipeline is analyzed according to the vibration data and the support reaction force to obtain a target evaluation result, wherein the target evaluation result is used to characterize whether there is a safety risk in the buckle layout.

2. The method according to claim 1, characterized in that The vibration data includes: the vibration amplitude of the buckle constraint position and the stress of the buckle constraint position, wherein the buckle layout of the air conditioning pipeline is analyzed according to the vibration data and the support reaction force to obtain the target evaluation result, including: Evaluate the fracture risk of the buckle restraint position according to the stress corresponding to the buckle restraint position to obtain a fracture risk level; Evaluate the collision risk corresponding to the buckle restraint position according to the vibration amplitude of the buckle restraint position to obtain a collision risk level; The buckle-off risk at the buckle-constrained position is evaluated according to the support reaction force to obtain a buckle-off risk level; The target assessment result is determined according to the fracture risk level, the collision risk level, and the buckle falling off risk level.

3. The method according to claim 2, characterized in that The fracture risk level includes a first fracture risk level and a second fracture risk level, wherein the fracture risk of the buckle constraint position is evaluated according to the stress corresponding to the buckle constraint position to obtain the fracture risk level, including: Obtaining the yield strength corresponding to the pipe material of the air conditioning pipe; When the stress corresponding to the buckle constraint position is less than the yield strength, determining the fracture risk level corresponding to the buckle constraint position as the first fracture risk level; When the stress corresponding to the buckle constraint position is greater than or equal to the yield strength, the fracture risk level corresponding to the buckle constraint position is determined to be the second fracture risk level, wherein the first fracture risk level is lower than the second fracture risk level.

4. The method according to claim 2, characterized in that: The collision risk level includes a first collision risk level and a second collision risk level, wherein the collision risk corresponding to the buckle constraint position is evaluated according to the stress of the buckle constraint position to obtain the collision risk level, including: Obtaining a pipe installation spacing corresponding to the air conditioning pipe layout; Determining the vibration displacement corresponding to the buckle constraint position according to the correlation between the vibration amplitude and the vibration displacement; When the vibration displacement corresponding to the buckle constraint position is less than the pipeline installation spacing, determining the collision risk level corresponding to the buckle constraint position as the first collision risk level; When the vibration displacement corresponding to the buckle constraint position is greater than or equal to the pipeline installation spacing, the fracture risk level corresponding to the buckle constraint position is determined to be the second collision risk level, wherein the first collision risk level is lower than the second collision risk level.

5. The method according to claim 2, characterized in that: The buckle falling-off risk level includes a first buckle falling-off risk level and a second buckle falling-off risk level, wherein the buckle falling-off risk of the buckle restraining position is evaluated according to the support reaction force to obtain the buckle falling-off risk level, including: Obtaining the buckle insertion and extraction force corresponding to the buckle constraint position; When the support reaction force is less than the buckle insertion and extraction force, determining the buckle falling-off risk level corresponding to the buckle constraint position as the first buckle falling-off risk level; When the support reaction force is greater than or equal to the buckle insertion and extraction force, the buckle fall-off risk level corresponding to the buckle constraint position is determined to be the second buckle fall-off risk level, wherein the first buckle fall-off risk level is lower than the second buckle fall-off risk level.

6. The method according to any one of claims 2 to 5, characterized in that The determining the target assessment result according to the fracture risk level, the collision risk level and the buckle falling risk level includes: When the fracture risk level is lower than the preset fracture risk level threshold, and the collision risk level is lower than the preset collision risk level threshold, and the buckle falling risk level is lower than the preset buckle falling risk level threshold, it is determined that the buckle layout does not have a safety risk; When the fracture risk level is higher than the preset fracture risk level threshold, and / or the collision risk level is higher than the preset collision risk level threshold, and / or the buckle falling risk level is higher than the preset buckle falling risk level threshold, it is determined that there is a safety risk in the buckle layout.

7. The method according to any one of claims 2 to 5, characterized in that After analyzing the buckle layout of the air conditioning pipeline according to the vibration data and the support reaction force to obtain a target evaluation result, the method further includes: When the target evaluation result indicates that there is a safety risk in the buckle layout, a new buckle position in the air-conditioning pipeline is determined based on at least one of the vibration amplitude, stress and support reaction force of the buckle constraint position.

8. The method according to claim 7, characterized in that The step of determining a new buckle position in the air conditioning pipeline according to at least one of the vibration amplitude, stress and support reaction force of the buckle constraint position includes: Obtaining a target position in the air conditioning pipeline that meets preset conditions, wherein the preset conditions include: the stress corresponding to the buckle constraint position is greater than or equal to the yield strength, and / or the vibration displacement corresponding to the buckle constraint position is greater than or equal to a preset pipeline installation spacing, and / or the support reaction force is greater than or equal to a preset buckle plug-in and pull-out force target position; The target position is determined as the newly added position of the buckle.

9. The method according to claim 1, characterized in that: Before analyzing the buckle layout of the air conditioning pipeline according to the vibration data and the support reaction force to obtain a target evaluation result, the method further includes: Step S1, performing modal analysis on the air conditioning pipeline model to obtain a modal frequency corresponding to the air conditioning pipeline model; Step S2, generating buckle adjustment information when the modal frequency is less than a preset modal frequency threshold; Step S3, obtaining an adjusted air conditioning pipeline model, wherein the adjusted air conditioning pipeline model is a model obtained by the user adjusting the buckle position and / or the buckle quantity in the air conditioning pipeline model according to the buckle adjustment information; The above steps S1 to S3 are repeatedly performed until the modal frequency of the air conditioning pipeline model is greater than or equal to the preset modal frequency threshold.

10. The method according to claim 9, characterized in that The method further comprises: In a case where the modal frequency is greater than or equal to the preset modal frequency threshold, the step of analyzing the buckle layout of the air-conditioning pipeline according to the vibration data and the support reaction force is performed.

11. The method according to claim 1, characterized in that: The step of obtaining an air conditioning pipeline model corresponding to the air conditioning pipeline layout of the vehicle includes: Acquiring air conditioning pipeline layout data of the vehicle; Performing finite element structural simulation on the air conditioning pipeline layout data to obtain finite element structural data; The air conditioning pipeline model is constructed based on the finite element structure data.

12. A snap-on layout evaluation device, characterized in that: include: A model acquisition module, used to acquire an air-conditioning pipeline model corresponding to an air-conditioning pipeline layout of a vehicle, wherein the air-conditioning pipeline of the vehicle is fixed in a chassis of the vehicle by at least one buckle; A first excitation module, used for performing random vibration excitation on the buckle constraint position in the air-conditioning pipeline model to obtain vibration data generated by the air-conditioning pipeline model under the random vibration excitation; A second excitation module is used to load an acceleration load on a buckle constraint position in the air conditioning pipeline model to obtain a support reaction force at the buckle constraint position; An evaluation module is used to analyze the buckle layout of the air-conditioning pipeline according to the vibration data and the support reaction force to obtain a target evaluation result, wherein the target evaluation result is used to characterize whether there is a safety risk in the buckle layout.

13. An electronic device, characterized in that: The electronic device comprises: a processor and a memory storing computer program instructions; When the processor executes the computer program instructions, the method for evaluating the buckle layout as described in any one of claims 1-11 is implemented.

14. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer program instructions, and when the computer program instructions are executed by a processor, the method for evaluating the buckle layout according to any one of claims 1 to 11 is implemented.

15. A computer program product, characterized in that When the instructions in the computer program product are executed by a processor of an electronic device, the electronic device executes the method for evaluating the buckle layout as described in any one of claims 1-11.

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