Damping design method suitable for reactor equipment
By placing dampers around the nuclear reactor equipment, the problem of large dynamic response of the equipment under earthquakes was solved, improving seismic performance and economy, and reducing design difficulty and cost.
Patent Information
- Application Number
- CN202511612824.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-05
- Publication Date
- 2026-02-03
AI Technical Summary
In existing technologies, nuclear reactor equipment exhibits a large dynamic response under earthquakes, affecting the safe operation of the equipment and the containment function of the bellows. Traditional seismic design methods cannot significantly improve seismic performance and are costly.
At least two dampers are arranged around the reactor equipment, and the dampers are arranged according to the vibration direction. By increasing the damping ratio, the displacement and acceleration response of the equipment under earthquakes are reduced, ensuring the structural integrity and operability of the equipment.
To reduce the equipment's response to earthquakes, improve seismic performance, reduce design difficulty and cost, ensure the structural integrity and economy of the equipment in high-temperature environments, and avoid affecting existing seismic assessment results.
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Figure CN121456969A_ABST
Abstract
Description
Technical Field
[0001] The embodiments of this application relate to the field of nuclear reactor vibration reduction technology, specifically to a vibration reduction design method applicable to reactor equipment. Background Technology
[0002] The statements herein are provided merely as background information in connection with this application and do not necessarily constitute prior art.
[0003] For equipment in nuclear reactors used to perform residual heat removal in nuclear safety accidents, such as main pumps and heat exchangers, their dynamic response under seismic loads is relatively large due to their high installation position and heavy weight. This can seriously affect the safe operation of the equipment under earthquakes and the containment function of the primary loop bellows of the nuclear reactor.
[0004] Currently, traditional seismic design methods mainly enhance the seismic resistance of the structure itself through structural reinforcement design, that is, the structure itself stores and dissipates energy. However, the application scenarios of structural reinforcement seismic methods are limited. While increasing the design difficulty and cost, this method cannot significantly improve the seismic performance of reactor equipment. Summary of the Invention
[0005] A brief overview of this application is provided below to offer a basic understanding of certain aspects thereof. It should be understood that this overview is not an exhaustive summary of the application. It is not intended to identify key or essential parts of the application, nor is it intended to limit its scope. Its purpose is merely to present certain concepts in a simplified form as a prelude to the more detailed description that follows.
[0006] The embodiments of this application provide a vibration reduction design method applicable to reactor equipment, which includes the following steps: S1, determining the finite element model of each piece of equipment in the reactor; S2, applying vibration excitation to the finite element model of the equipment determined in step S1 to determine the first vibration information of each piece of equipment in the reactor; S3, determining the equipment to be vibration-damped in the reactor based on the first vibration information determined in step S2; S4, arranging at least two dampers around the equipment to be vibration-damped along each vibration direction of the equipment to be vibration-damped as determined in step S3, according to predetermined damper arrangement requirements.
[0007] Compared with the prior art, the vibration reduction design method provided by the embodiments of this application is as follows: (1) According to the predetermined damper arrangement requirements, two or more dampers are arranged around the device to be damped along each vibration direction of the device to be damped in the reactor. This eliminates the need to modify the original structure of the device to be damped, which is conducive to improving the damping effect of the device to be damped and ensuring the structural integrity and operability of the device to be damped under seismic load. At the same time, this damping design method does not require a complicated design process and has a relatively low cost. (2) By arranging at least two dampers around the device to be damped, it is beneficial to reduce the displacement response of the device to be damped along the vibration direction under seismic load. Furthermore, since the device to be damped is mainly installed in the reactor vessel by equipment support and is equipped with bellows to coordinate the inconsistency between the device to be damped and the reactor vessel in terms of vibration and thermal expansion displacement, thereby ensuring the sealing of the reactor vessel, under the condition of limited space, by reducing the displacement response of the device to be damped along the vibration direction under seismic load, it is beneficial to reduce the design difficulty of the bellows in the reactor and ensure the integrity of the containment boundary at the primary loop bellows of the reactor vessel. At the same time, by reducing the displacement response of the device to be damped along the vibration direction under seismic load, it is beneficial to reduce the displacement load of the pipeline system in the reactor, thereby reducing the design difficulty of the pipeline system and improving the economy. (3) By arranging at least two dampers around the device to be damped, it is beneficial to reduce the acceleration response of the device to be damped along the vibration direction under seismic load, thereby reducing the occurrence of situations where the seismic appraisal test of the device to be damped cannot be carried out normally due to the input exceeding the technical specifications of the shaking table; (4) It helps to reduce the stress on the equipment to be damped under seismic load, thereby improving the seismic performance of the equipment to be damped and ensuring its structural integrity and operability under seismic load; (5) It can break through the traditional method of improving the seismic resistance of the equipment to be vibration-damped under high temperature environment by strengthening the structure of the equipment to be vibration-damped. It is beneficial to avoid the disadvantage of the increase of thermal stress of the equipment to be vibration-damped under temperature load caused by the structural strengthening method, thereby avoiding the reduction of the fatigue resistance of the equipment. Furthermore, since the research and development cost of improving the seismic resistance of the equipment to be vibration-damped under high temperature environment is high, while the vibration reduction design method provided by the embodiment of this application has a low application cost, it can save the research and development expenses of high temperature equipment of reactor, thereby improving the economic efficiency of nuclear reactor equipment. (6) Its main damping design principle is to increase the damping ratio of the structural system under earthquake. This damping design method can be applied to the renovation project of reactor equipment. Setting up dampers around the reactor equipment will not change the natural frequency of the entire structural system under earthquake. Therefore, it is beneficial to avoid affecting other additional equipment in the reactor that has completed the seismic qualification test results, and thus saves the cost of re-conducting seismic qualification tests on additional equipment.
[0008] These and other advantages of this application will become more apparent from the following detailed description of preferred embodiments in conjunction with the accompanying drawings. Attached Figure Description
[0009] To further illustrate the above and other advantages and features of this application, the specific embodiments of this application will be described in more detail below with reference to the accompanying drawings. The drawings, together with the following detailed description, are included in and form a part of this specification. Elements having the same function and structure are indicated by the same reference numerals. It should be understood that these drawings only depict typical examples of this application and should not be considered as limiting the scope of this application.
[0010] Figure 1 This is a schematic flowchart of a vibration reduction design method applicable to reactors according to an embodiment of this application; Figure 2 This is a schematic diagram of the installation of the damper according to an embodiment of this application; Figure 3 This is a top view of the arrangement structure of the damper according to the first embodiment of this application; Figure 4 This is a top view of the arrangement structure of the damper according to the second embodiment of this application; Figure 5 This is a top view of the arrangement structure of the damper according to the third embodiment of this application; Figure 6 This is a top view of the arrangement structure of the damper according to the fourth embodiment of this application; Figure 7 This is a top view of the arrangement structure of the damper according to the fifth embodiment of this application; Figure 8 This is a top view of the arrangement structure of the damper according to the sixth embodiment of this application.
[0011] It should be noted that the accompanying drawings are not necessarily drawn to scale, but are shown only in a schematic manner without affecting the reader's understanding.
[0012] Explanation of reference numerals in the attached figures: 11. Damper; 21. Equipment; 22. Equipment to be damped; 221. Vibration direction; 31. Damper mounting components. Detailed Implementation
[0013] Exemplary embodiments of this application will be described below with reference to the accompanying drawings. For clarity and brevity, not all features of actual implementations are described in the specification. However, it should be understood that many implementation-specific decisions must be made in the development of any such actual embodiment to achieve the developer's specific goals, such as complying with constraints related to the system and business, and these constraints may vary depending on the implementation. Furthermore, it should be understood that while development work can be very complex and time-consuming, such development work is merely a routine task for those skilled in the art who benefit from the content of this application.
[0014] It should also be noted that, in order to avoid obscuring this application with unnecessary details, only the equipment structure and / or processing steps closely related to the solution according to this application are shown in the accompanying drawings, while other details that are not closely related to this application are omitted.
[0015] It should be noted that, unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning as understood by a person with ordinary skills in the field to which this application pertains.
[0016] In the description of the embodiments of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0017] Seismic design of nuclear reactors in related technologies involves two approaches. One is to strengthen the structure to enhance its seismic resistance. However, the application of structural strengthening is limited, as it increases design complexity and cost without significantly improving the seismic performance of nuclear reactors. The other approach is to provide rigid support to the nuclear reactor under seismic loads to alter the natural frequency and support conditions of the structural system, thereby reducing the seismic response of the nuclear reactor. However, the seismic reduction effect of this design method is not ideal.
[0018] To address the aforementioned technical problems, embodiments of this application provide a vibration reduction design method suitable for reactor equipment. Figure 1 This is a schematic flowchart of a vibration reduction design method for reactor equipment according to an embodiment of this application, as shown below. Figure 1 As shown, the vibration reduction design method includes the following steps S1 to S4.
[0019] S1. Determine the finite element model of each device in the reactor.
[0020] S2. Apply vibration excitation to the finite element model of the equipment determined in step S1 to determine the first vibration information of each piece of equipment in the reactor.
[0021] S3. Based on the first vibration information determined in step S2, identify the vibration damping equipment in the reactor.
[0022] S4. According to the predetermined damper arrangement requirements, arrange at least two dampers around the device to be damped in each vibration direction determined in step S3.
[0023] Compared with the prior art, the vibration reduction design method provided by the embodiments of this application is as follows: (1) According to the predetermined damper arrangement requirements, two or more dampers are arranged around the device to be damped along each vibration direction of the device to be damped in the reactor. This eliminates the need to modify the original structure of the device to be damped, which is conducive to improving the damping effect of the device to be damped and ensuring the structural integrity and operability of the device to be damped under seismic load. At the same time, this damping design method does not require a complicated design process and has a relatively low cost. (2) By arranging at least two dampers around the device to be damped, it is beneficial to reduce the displacement response of the device to be damped along the vibration direction under seismic load. Furthermore, since the device to be damped is mainly installed in the reactor vessel by equipment support and is equipped with bellows to coordinate the inconsistency between the device to be damped and the reactor vessel in terms of vibration and thermal expansion displacement, thereby ensuring the sealing of the reactor vessel, under the condition of limited space, by reducing the displacement response of the device to be damped along the vibration direction under seismic load, it is beneficial to reduce the design difficulty of the bellows in the reactor and ensure the integrity of the containment boundary at the primary loop bellows of the reactor vessel. At the same time, by reducing the displacement response of the device to be damped along the vibration direction under seismic load, it is beneficial to reduce the displacement load of the pipeline system in the reactor, thereby reducing the design difficulty of the pipeline system and improving the economy. (3) By arranging at least two dampers around the device to be damped, it is beneficial to reduce the acceleration response of the device to be damped along the vibration direction under seismic load, thereby reducing the occurrence of situations where the seismic appraisal test of the device to be damped cannot be carried out normally due to the input exceeding the technical specifications of the shaking table; (4) It helps to reduce the stress on the equipment to be damped under seismic load, thereby improving the seismic performance of the equipment to be damped and ensuring its structural integrity and operability under seismic load; (5) It can break through the traditional method of improving the seismic resistance of the equipment to be vibration-damped under high temperature environment by strengthening the structure of the equipment to be vibration-damped. It is beneficial to avoid the disadvantage of the increase of thermal stress of the equipment to be vibration-damped under temperature load caused by the structural strengthening method, thereby avoiding the reduction of the fatigue resistance of the equipment. Furthermore, since the research and development cost of improving the seismic resistance of the equipment to be vibration-damped under high temperature environment is high, while the vibration reduction design method provided by the embodiment of this application has a low application cost, it can save the research and development expenses of high temperature equipment of reactor, thereby improving the economic efficiency of nuclear reactor equipment. (6) Its main damping design principle is to increase the damping ratio of the structural system under earthquake. This damping design method can be applied to the renovation project of reactor equipment. Setting up dampers around the reactor equipment will not change the natural frequency of the entire structural system under earthquake. Therefore, it is beneficial to avoid affecting other additional equipment in the reactor that has completed the seismic qualification test results, and thus saves the cost of re-conducting seismic qualification tests on additional equipment.
[0024] In some embodiments, in step S1, for any device in the reactor, the corresponding finite element model of the device can be determined based on the structural drawings of the device.
[0025] In some embodiments, in step S2, a seismic response spectrum or seismic wave can be input into the finite element model of the device, and then the modal decomposition response spectrum method or time history analysis method can be used to determine the first vibration information of the current device. In such embodiments, the first vibration information includes any one or more of the device's response values such as stress, deformation, displacement, acceleration, and support reaction force under an earthquake.
[0026] In some embodiments, step S3 includes the following steps: S31, determining a device that exceeds the target vibration response value based on the first vibration information; S32, determining the installation space and installation location around the device that exceeds the target vibration response value; S33, when the installation space around the device that exceeds the target vibration response value meets the predetermined space requirement of the damper, and / or the installation location meets the predetermined location requirement of the damper, determining the device that currently exceeds the target vibration response value as a device to be damped.
[0027] The vibration reduction design method provided in the embodiments of this application determines whether a device can be used as a vibration reduction device based on the installation space and installation location around the device that exceeds the target vibration response value. This facilitates the confirmation of the vibration reduction requirements of each device in the reactor, and, if the device has vibration reduction requirements, confirms whether it is suitable to arrange dampers around the device, which helps to improve the efficiency of damper arrangement.
[0028] In some embodiments, for any device in the reactor, the target vibration response value of the device can be determined according to the seismic design standards and design requirements of the device.
[0029] In some embodiments, the target vibration response value may include the target vibration response values corresponding to stress, deformation, displacement, acceleration, and support reaction force, as mentioned above. In such embodiments, if any response value exceeds its corresponding target vibration response value, the device can be determined to be a device exceeding the target vibration response value.
[0030] In some embodiments, when determining whether the installation space around a device that exceeds the target vibration response value meets the predetermined space requirements, the location and number of dampers can be determined based on the installation space in two directions that are horizontal and orthogonal to the plane where the device to be damped is located.
[0031] In some embodiments, step S33 further includes the following step: when the end of the damper near the device can be installed on the device, and the end of the damper away from the device can be installed on a damper mounting member and a mounting device of the damper mounting member that meet the strength and rigidity requirements, determine that the current installation position of the damper meets the predetermined position requirements.
[0032] The damping design method provided in the embodiments of this application installs the damper on the equipment and the damper mounting component and its mounting equipment respectively in the above-mentioned installation method, which helps to ensure the stability of the damper installation and at the same time ensure the damping effect of the damper on the damping equipment.
[0033] In some embodiments, Figure 2 This is a schematic diagram of the installation of the damper according to an embodiment of this application, as shown below. Figure 2 As shown, the end of the damper 11 near the device 21 can be connected to the device 21 by a hinge.
[0034] In some embodiments, such as Figure 2 As shown, the end of the damper 11 furthest from the device 21 can be connected to the damper mounting component 31 by a hinge.
[0035] In some embodiments, step S4 includes the following steps: S41, performing modal analysis on the finite element model of the equipment to obtain modal analysis results; S42, determining predetermined damper arrangement requirements based on the modal analysis results; S43, arranging dampers around the equipment to be damped according to the predetermined damper arrangement requirements.
[0036] The vibration reduction design method provided in the embodiments of this application determines the predetermined damper arrangement requirements based on the modal analysis results, and arranges dampers around the equipment to be vibration reduced according to the predetermined damper arrangement requirements. This can achieve the desired vibration reduction effect with a smaller number of dampers, ensuring the simplicity and economy of the vibration reduction system of the reactor equipment.
[0037] In some embodiments, modal analysis results include the principal modes and mode shapes of the device. In such embodiments, the mode shapes of the device may include vibration frequency and vibration direction.
[0038] In some embodiments, the vibration mode of the equipment in the reactor can be a beam vibration mode, and the vibration direction of the equipment includes both horizontal and orthogonal directions. It can be understood that the orthogonal direction is the direction perpendicular to the horizontal direction.
[0039] In some embodiments, when the installation space around the device meets the predetermined space requirements and the installation position meets the predetermined position requirements, step S43 further includes the following step: according to the predetermined damper arrangement requirements that make the axial extension direction of the damper consistent with the vibration direction of the device to be damped, at least two dampers are arranged around the device to be damped along each vibration direction of the device to be damped.
[0040] The vibration reduction design method provided in the embodiments of this application, when the installation space around the reactor equipment meets the predetermined space requirements and the installation position meets the predetermined position requirements, sets the axial extension direction of the damper to be consistent with the vibration direction of the equipment to be vibration reduced, thereby achieving the purpose of meeting the vibration reduction requirements of the equipment to be vibration reduced and helping to improve the vibration reduction effect of the damper.
[0041] In some embodiments, the modal analysis results may include the vibration direction of the device to be damped.
[0042] In some embodiments, Figure 3 This is a top view of the arrangement structure of the damper according to the first embodiment of this application. Figure 4 This is a top view of the arrangement structure of the damper according to the second embodiment of this application, as shown below. Figure 3 and Figure 4 As shown, the vibration direction 221 of the device to be damped 22 includes a first direction (i.e., the horizontal direction in the previous embodiment) and a second direction perpendicular to the first direction (i.e., the orthogonal direction in the previous embodiment). Multiple dampers 11 are respectively arranged on different sides of the device to be damped 22, and the axial extension directions of every two adjacent dampers 11 are perpendicular to each other. In such an embodiment, the axial extension direction of each damper 11 is parallel to one of the vibration directions 221 of the device to be damped 22.
[0043] In some embodiments, when the installation space around the device does not meet the predetermined space requirement, but the installation position meets the predetermined position requirement, step S43 further includes the following step: arranging dampers around the device to be damped in accordance with a predetermined damper arrangement requirement that makes the axial extension directions of at least two dampers perpendicular to each other.
[0044] The vibration reduction design method provided in the embodiments of this application can be configured such that the axial extension directions of multiple dampers are perpendicular to each other when the installation space around the equipment does not meet the predetermined space requirements, but the installation position meets the predetermined position requirements. This can achieve the purpose of meeting the vibration reduction requirements of the equipment to be vibration reduced even when the installation space is insufficient.
[0045] In some embodiments, Figure 5 This is a top view of the arrangement structure of the damper according to the third embodiment of this application. Figure 6This is a top view of the arrangement structure of the damper according to the fourth embodiment of this application, as shown below. Figure 5 and Figure 6 As shown, the vibration direction 221 of the device to be damped 22 is orthogonal, and multiple dampers 11 are arranged on different sides of the device to be damped 22, with the axial extension directions of every two adjacent dampers 11 being perpendicular to each other. In this embodiment, the axial extension direction of each damper 11 is not parallel to the vibration direction 221 of the device to be damped 22.
[0046] In some embodiments, step S43 further includes the following step: arranging a plurality of dampers around the device to be damped in accordance with a predetermined damper arrangement requirement that the axial extension directions of the two dampers are respectively aligned with the vibration direction of the device to be damped, and the axial extension directions of the other dampers are parallel to each other and perpendicular to the axial extension direction of the previous damper.
[0047] The vibration reduction design method provided in the embodiments of this application can improve the diversity of damper arrangement and achieve the purpose of meeting the vibration reduction requirements of the equipment when the installation space around the equipment cannot meet the predetermined space requirements and the dampers cannot be arranged according to the vibration direction of the equipment to be vibration reduced.
[0048] In some embodiments, Figure 7 This is a top view of the arrangement structure of the damper according to the fifth embodiment of this application. Figure 8 This is a top view of the arrangement structure of the damper according to the sixth embodiment of this application, as shown below. Figure 7 and Figure 8 As shown, the vibration direction 221 of the device 22 to be damped is orthogonal. Two dampers 11 among the plurality of dampers 11 can be arranged on the same side of the device 22 to be damped, and the axial extension directions of these two dampers 11 are perpendicular to each other. The axial extension directions of the other dampers 11 besides these two dampers 11 can be parallel to the axial extension direction of any one of the two dampers 11. In such an embodiment, the axial extension direction of each damper 11 is parallel to the vibration direction 221 of the device 22 to be damped.
[0049] In some embodiments, the damping design method further includes the following steps: S5, determining the finite element model of the damper corresponding to the damper; S6, determining the design parameters of the damper based on the finite element model of the damper.
[0050] The damping design method provided in the embodiments of this application determines the design parameters of the damper based on the determined finite element model of the damper. This facilitates multiple adjustments to the damping effect of the damper during the design process, so that the final damper can meet the damping requirements.
[0051] In some embodiments, the damper may be a viscous damper. In such embodiments, the design parameters of the damper include, but are not limited to, the viscous damping coefficient (VFD). Speed index ( ), piston rod stiffness characteristic parameters ( ) and damper mounting stiffness characteristics ( In such an embodiment, the classic Maxwell model can be used. The restoring force model of the simulated damper, wherein, Indicates resilience, This represents the velocity of the damper relative to the components it is connected to. In such an embodiment, a one-dimensional linear spring element can be used to simulate the supporting role of the damper's piston rod and damper mounting components.
[0052] The vibration reduction design method provided in the embodiments of this application uses a finite element model of the damper to simulate the damper. This facilitates the equivalent application of the relationship between force and velocity involved in the operation of the damper and the relevant design parameters of the damper during the design process, thereby accurately simulating the vibration reduction effect of the damper on the equipment during an earthquake.
[0053] In some embodiments, step S6 further includes the following steps: S61, determining the initial parameter values of the damper based on the finite element model of the damper; S62, applying vibration excitation to the finite element model of the damper to obtain the second vibration information of the device to be damped; S63, correcting the initial parameter values based on the second vibration information.
[0054] The vibration reduction design method provided in the embodiments of this application obtains the second vibration information of the device to be vibration-reduced by applying vibration excitation to the finite element model of the damper, and then corrects the initial parameter values according to the second vibration information, which can ensure that the final designed damper achieves the vibration reduction effect required by its design.
[0055] In some embodiments, based on the finite element model of the damper, the initial values of the damper's viscous damping coefficient, velocity exponent, and piston rod stiffness characteristic parameters can be estimated first, and the stiffness characteristic parameters of the damper mounting component can be determined according to the initial design scheme of the damper mounting component. Then, a vibration excitation is input to the damper, and the response values of the damper under vibration excitation, such as stress, deformation, displacement, acceleration, and support reaction force, are determined, and the response values are compared with the target vibration response value. In such embodiments, the second vibration information may include any one or more of the response values of the damper under vibration excitation, such as stress, deformation, displacement, acceleration, and support reaction force.
[0056] In some embodiments, if the determined response value does not match the target vibration response value, the design parameters of the damper can be adjusted multiple times until the determined response value reaches the target vibration response value.
[0057] In some embodiments, the damping design method further includes the following step: determining that the damper can be arranged around the device to be damped based on the load-bearing capacity of the device to be damped and the damper mounting components for the damper support reaction force.
[0058] The vibration reduction design method provided in the embodiments of this application determines that the damper can be arranged around the equipment to be vibration reduced based on the bearing capacity of the damper support reaction force of the equipment to be vibration reduced and the damper mounting components. This helps to ensure that the strength and stiffness of the mounting parts can meet the installation requirements of the damper, ensure the stability of the damper installation, and thus help to improve the vibration reduction effect of the damper.
[0059] In some embodiments, when determining the vibration damping requirements of the equipment, the additional effects of the damper on the equipment should also be considered.
[0060] In some embodiments, the locations affecting the equipment mainly include the installation location of the damper on the equipment and the equipment support location.
[0061] In some embodiments, the affected support components include damper mounting components, damper mounting equipment, and embedded parts. By analyzing the overall and / or local strength and stiffness of these components, weak areas of the components can be locally reinforced if necessary to ensure that their strength and stiffness meet the installation requirements of the damper, thereby ensuring that the damping equipment and its support components can bear the damper reaction force to meet the installation requirements of the damper.
[0062] Regarding the embodiments of this application, it should also be noted that, without conflict, the embodiments of this application and the features in the embodiments can be combined with each other to obtain new embodiments.
[0063] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. The scope of protection of this application shall be determined by the scope of the claims.
Claims
1. A seismic design method for a reactor facility, characterized by, It comprises the following steps: S1, determining the device finite element model corresponding to each device in the reactor; S2, applying a vibration excitation to the device finite element model determined in step S1 to determine the first vibration information of each device in the reactor; S3, determining the device to be damped in the reactor according to the first vibration information determined in step S2; S4, arranging at least two dampers around the device to be damped in each vibration direction of the device to be damped according to the predetermined damper arrangement requirement.
2. The shock absorption design method according to claim 1, characterized by In step S3, the following steps are included: S31, determining the device exceeding the target vibration response value according to the first vibration information; S32, determining the installation space and installation position around the device exceeding the target vibration response value; S33, determining the current device exceeding the target vibration response value as the device to be damped when the installation space around the device exceeding the target vibration response value meets the predetermined space requirement of the damper, and / or the installation position meets the predetermined position requirement of the damper.
3. The shock absorption design method according to claim 2, characterized by In step S33, the following steps are also included: When one end of the damper close to the device can be installed on the device, and the other end of the damper away from the device can be installed on the damper mounting member and the installation device of the damper mounting member which meet the requirements of rigidity and strength, it is determined that the current installation position of the damper meets the predetermined position requirement.
4. The shock attenuation design method of claim 1 or 2, wherein In step S4, the following steps are included: S41, performing modal analysis on the device finite element model to obtain modal analysis results; S42, determining the predetermined damper arrangement requirement according to the modal analysis results; S43, arranging dampers around the device to be damped according to the predetermined damper arrangement requirement.
5. The shock absorption design method according to claim 4, characterized in that, When the installation space around the device meets the predetermined space requirement, and the installation position meets the predetermined position requirement, in step S43, the following steps are also included: According to the predetermined damper arrangement requirement that the axial extension direction of the damper is consistent with the vibration direction of the device to be damped, at least two dampers are arranged around the device to be damped in each vibration direction of the device to be damped.
6. The shock absorption design method according to claim 4, wherein When the installation space around the device does not meet the predetermined space requirement, and the installation position meets the predetermined position requirement, in step S43, the following steps are also included: According to the predetermined damper arrangement requirement that the axial extension directions of at least two dampers are perpendicular to each other, the dampers are arranged around the device to be damped.
7. The shock absorption design method according to claim 6, characterized by In step S43, the following steps are also included: According to the predetermined damper arrangement requirement that the axial extension directions of two dampers are consistent with the vibration direction of the device to be damped respectively, and the axial extension directions of other dampers are parallel to each other and perpendicular to the axial extension direction of the previous damper, a plurality of dampers are arranged around the device to be damped.
8. The shock absorption design method according to claim 1, characterized by The damping method further comprises the following steps: S5, determining the damper finite element model corresponding to the damper; S6、According to the damper finite element model, determine the design parameters of the damper.
9. The shock absorption design method according to claim 8, characterized by In the step S6, the following steps are further included: S61、According to the damper finite element model, determine the initial parameter values of the damper; S62、Apply a vibration excitation to the damper finite element model, and obtain second vibration information of the equipment to be damped; S63、According to the second vibration information, correct the initial parameter values.
10. The shock absorption design method according to any one of claims 1 to 9, characterized in that, The damping method further includes the following steps: According to the equipment to be damped and the load bearing capacity of the damper mounting member to the damper support force, determine that the damper can be arranged around the equipment to be damped.