A method and device for processing a shock absorbing tower
By dividing the side walls of the shock absorbing tower into multiple strip areas and accurately positioning the reinforcement ribs, the problem of inaccurate reinforcement rib design in the prior art is solved, and the lightweight and performance improvement of the shock absorbing tower is achieved.
Patent Information
- Application Number
- CN202110635413.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-06-07
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2041-06-07
AI Technical Summary
The existing cast-aluminum shock absorbing tower lacks advanced methods in reinforcement rib design, which leads to the inability to accurately determine the position of reinforcement ribs, affecting the weight and performance of the shock absorbing tower.
By dividing the side walls of the shock absorbing tower into multiple bar areas, and determining the thickness value of each area according to the constraints and preset thickness values, the setting position of the reinforcement ribs is accurately positioned.
Improves the accuracy of the rib setting position, enhances the strength and stiffness of the side walls, reduces the weight of the shock absorber tower and improves overall performance.
Smart Images

Figure CN114676511B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of automobiles, and in particular to a processing method and a device for a shock-absorbing tower. Background Art
[0002] Cast aluminum shock tower has the advantages of light weight and high rigidity, and has been increasingly used in current automotive design. Cast aluminum shock tower consists of a semi-wrapped thin wall and reinforcing ribs on the wall. The design of the thin wall is mainly determined by the envelope space of the automotive shock tower, and there is no advanced design method for the design of the reinforcing ribs. At present, engineers mainly rely on experience to determine the position of the reinforcing ribs, which may not result in a lighter shock tower. Therefore, how to accurately determine the location of the reinforcing ribs needs to be considered. Summary of the invention
[0003] The object of the present invention is to provide a method and device for processing a shock-absorbing tower, so as to accurately determine the setting position of the reinforcing ribs.
[0004] In order to achieve the above-mentioned purpose, the present invention provides a processing method for a shock-absorbing tower, wherein the shock-absorbing tower includes a side wall and a tower top, and the method includes: after establishing a basic model of the shock-absorbing tower, according to a first instruction, dividing the side wall into a plurality of strip areas, wherein the extension line direction of the strip area is parallel to the demolding direction; determining a first thickness value of each of the strip areas according to a constraint condition and a first preset thickness value of a first reinforcement rib; determining a first target area among the plurality of strip areas according to the first thickness value of each of the strip areas; and setting the first reinforcement rib in the first target area.
[0005] Optionally, determining the first target area among the multiple strip areas based on the first thickness value of each of the strip areas includes: determining a first target thickness value that is greater than a second preset thickness value among the multiple first thickness values; and determining the strip area corresponding to the first target thickness value as the first target area.
[0006] Optionally, after setting the first reinforcing rib in the first target area, the method further includes: determining a first optimized thickness value of each of the first reinforcing ribs based on the constraint condition and a first preset thickness value of the first reinforcing rib; and setting the thickness of the first reinforcing rib based on the first optimized thickness value.
[0007] Optionally, the method also includes: taking the top surface where the tower top is located as a candidate area, determining a second target area in the candidate area according to the constraint conditions and a third preset thickness value of the second reinforcement rib, wherein an extension line of the candidate area is perpendicular to the demolding direction; and setting the second reinforcement rib in the second target area.
[0008] Optionally, after setting the second reinforcing rib in the second target area, the method further includes: determining a second optimized thickness value of each second reinforcing rib based on the constraint condition and a second preset thickness value of the second reinforcing rib; and setting the thickness of the second reinforcing rib based on the second optimized thickness value.
[0009] Optionally, the constraint conditions include at least one of the following: the stiffness value in the X direction is greater than a first stiffness preset value; the stiffness value in the Y direction is greater than a second stiffness preset value; the stiffness value in the Z direction is greater than a third stiffness preset value; and the maximum stress of the strength condition is less than the yield strength of the material.
[0010] Another embodiment of the present invention provides a shock-absorbing tower, comprising: a first reinforcing rib, wherein the first reinforcing rib is arranged in a first target area, and the extension line direction of the first reinforcing rib is parallel to the demolding direction; wherein the first target area is determined by multiple strip areas on the side wall according to constraint conditions and a first preset thickness value of the first reinforcing rib.
[0011] Optionally, the thickness of the first reinforcing rib is a first optimized thickness value; wherein the first optimized thickness value is determined based on the constraint condition and the first preset thickness value.
[0012] Optionally, it also includes: a second reinforcement rib, which is arranged in a second target area; wherein the second target area is determined by a candidate area according to the constraint conditions and a third preset thickness value of the second reinforcement rib, the candidate area is the top surface area where the tower top is located, and the extension line of the candidate area is perpendicular to the demolding direction.
[0013] Optionally, the thickness of the second reinforcing rib is a second optimized thickness value; wherein the second optimized thickness value is determined based on the constraint condition and the third preset thickness value.
[0014] Another embodiment of the present invention provides a processing device for a shock-absorbing tower, which includes a side wall and a tower top, and includes: a first processing module, which is used to divide the side wall into a plurality of strip areas according to a first instruction after establishing a basic model of the shock-absorbing tower, wherein the extension line direction of the strip area is parallel to the demolding direction; a first determination module, which is used to determine the first thickness value of each of the strip areas according to a constraint condition and a first preset thickness value of the first reinforcement rib; a second determination module, which is used to determine a first target area among the plurality of strip areas according to the first thickness value of each of the strip areas; and a second processing module, which is used to set the first reinforcement rib in the first target area.
[0015] Yet another embodiment of the present invention provides a vehicle including the shock tower as described above.
[0016] Another embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the method for processing a shock tower as described above are implemented.
[0017] The above technical solution of the present invention has at least the following beneficial effects:
[0018] The processing method of the shock tower of the embodiment of the present invention can accurately determine the first target area for setting the first reinforcing rib from the multiple strip areas by dividing the side wall into multiple strip areas and according to the constraint conditions and the first preset thickness value of the first reinforcing rib, thereby improving the accuracy of determining the setting position of the first reinforcing rib. In addition, by setting the first reinforcing rib in the first target area, the strength and rigidity of the side wall can be effectively improved to prevent the side wall from being deformed. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 A schematic flow chart of a method for processing a shock tower provided in an embodiment of the present invention;
[0020] Figure 2 A schematic structural diagram of a basic model of a shock tower provided by an embodiment of the present invention;
[0021] Figure 3 A schematic diagram of dividing a side wall of a shock absorbing tower into a plurality of strip-shaped areas provided in an embodiment of the present invention;
[0022] Figure 4 One of the structural schematic diagrams of a shock absorbing tower provided in an embodiment of the present invention;
[0023] Figure 5 A second structural schematic diagram of a shock absorbing tower provided in an embodiment of the present invention;
[0024] Figure 6 A third structural schematic diagram of a shock absorbing tower provided in an embodiment of the present invention;
[0025] Figure 7 A fourth structural schematic diagram of a shock absorbing tower provided in an embodiment of the present invention;
[0026] Figure 8 A fifth structural schematic diagram of a shock absorbing tower provided in an embodiment of the present invention;
[0027] Fig. 9 A schematic flow chart of another method for processing a shock absorbing tower provided in an embodiment of the present invention;
[0028] Fig.10 A schematic diagram of a module of a processing device for a shock tower provided in an embodiment of the present invention. DETAILED DESCRIPTION
[0029] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will be described in detail in conjunction with the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help fully understand the embodiments of the present invention. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. In addition, for clarity and brevity, the description of known functions and structures is omitted.
[0030] It should be understood that the references to "one embodiment" or "an embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present invention. Therefore, the references to "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
[0031] In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
[0032] It should be understood that the term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.
[0033] In the embodiments provided by the present invention, it should be understood that "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.
[0034] See also Figures 1 to 5 An embodiment of the present invention provides a method for processing a shock absorbing tower, wherein the shock absorbing tower comprises a side wall and a tower top, and the method comprises the following steps:
[0035] Step 11: After establishing the basic model of the shock tower, according to the first instruction, the side wall is divided into a plurality of strip areas, wherein the extension line direction of the strip area is parallel to the demolding direction.
[0036] It should be noted that in the basic model of the shock tower, no reinforcing ribs are set on the side walls and the top of the tower. When establishing the basic model, it is necessary to determine the shape of the side walls of the shock tower by the envelope space based on the spatial position of the shock tower in the vehicle and taking into account the components around the shock tower. Optionally, the shape of the top of the tower can also be determined in this way. The shape of the side wall only needs to consider the feasibility of molding, connection relationship, layout and installation.
[0037] It should be noted that the side wall is divided into a plurality of strip regions, wherein each strip region can be arranged at equal intervals. For example, 120 strip regions are arranged, each strip region has the same width, and any two strip regions are spaced 3° apart. Each strip region can also be arranged at unequal intervals, for example, 140 strip regions are arranged, wherein the width of some strip regions is greater than the width of other strip regions. In order to facilitate distinction, each strip region can be numbered.
[0038] Furthermore, in order to improve the setting accuracy of the strip regions, the number of the strip regions is generally set between 110 and 150. The number of the strip regions can be determined by the shape and structure of the side wall.
[0039] Step 12: Determine the first thickness value of each of the strip regions according to the constraint conditions and the first preset thickness value of the first reinforcement rib.
[0040] It should be noted that the constraint condition includes at least one of the following: the stiffness value in the X direction is greater than the first stiffness preset value; the stiffness value in the Y direction is greater than the second stiffness preset value; the stiffness value in the Z direction is greater than the third stiffness preset value; the maximum stress of the strength condition is less than the yield strength of the material. Among them, the first stiffness preset value, the second stiffness preset value and the third stiffness preset value may be the same or different. It should be noted that the first reinforcing rib is set on the side wall, and the first preset thickness value can be any value between 2-15mm.
[0041] Step 13: Determine a first target area among the multiple strip areas according to the first thickness value of each of the strip areas.
[0042] It should be noted that the number of the first target areas is smaller than the number of the strip areas.
[0043] Step 14: Setting the first reinforcing rib in the first target area.
[0044] It should be noted that by dividing the side wall into a plurality of strip regions, and according to the constraint condition and the first preset thickness value of the first reinforcing rib, the first target region for setting the first reinforcing rib can be accurately determined from the plurality of strip regions, thereby improving the accuracy of determining the location of the first reinforcing rib. Furthermore, by setting the first reinforcing rib in the first target region, the strength and rigidity of the side wall can be effectively improved to prevent the side wall from being deformed.
[0045] The processing method of the embodiment of the present invention, wherein the first target area among the multiple strip areas is determined based on the first thickness value of each of the strip areas, comprising: determining a first target thickness value that is greater than a second preset thickness value among the multiple first thickness values; and determining the strip area corresponding to the first target thickness value as the first target area.
[0046] It should be noted that the first thickness of each strip area can be obtained through the constraint conditions and the first preset thickness value. Generally, the first thickness value of each strip area is different. Due to the large number of strip areas, if the first reinforcing ribs are set in all the strip areas, on the one hand, it will increase the overall weight of the shock tower, and on the other hand, it will also increase the cost. Therefore, it is necessary to select some of the first thickness values from the multiple first thickness values as the first target thickness value. For example, the second preset thickness value can be 3mm or 5mm, and its specific value can be set according to actual conditions. Among the multiple first thickness values, at least some of the thicknesses are greater than the second preset thickness value.
[0047] Optionally, the number of first target thickness values can be, for example, 10-15, or 9-13. Optionally, the number of first target thickness values can be set according to actual conditions. Among them, the first target thickness values can be sorted in order from large to small to determine the first target thickness value that meets the above quantity requirements. When the first target thickness value is determined, the strip area corresponding to the first target thickness value can be determined as the first target area. It should be noted that reinforcing ribs can be set on both the inner wall and the outer wall of the shock tower.
[0048] The processing method of the embodiment of the present invention, after setting the first reinforcing rib in the first target area, the method also includes: determining the first optimized thickness value of each of the first reinforcing ribs according to the constraint condition and the first preset thickness value of the first reinforcing rib; and setting the thickness of the first reinforcing rib according to the first optimized thickness value.
[0049] It should be noted that, when the thickness of the first reinforcement rib is not optimized, the thickness of the first target area can be regarded as an optimization design variable, so that the thickness can be optimized by the size optimization method. Through the constraint condition and the first preset thickness value, the first optimized thickness value of each first reinforcement rib can be obtained. Using the first optimized thickness value as the thickness of the first reinforcement rib can make the weight of the set first reinforcement rib lighter. Optionally, the optimal thickness size distribution can be obtained by global optimization solution, that is, the first optimized thickness value is obtained. It should be noted that different numbers can be used to represent different optimization design variables, where the optimization design variables can also be referred to as variables.
[0050] like Figure 6 As shown, the processing method of an embodiment of the present invention further includes: taking the top surface where the tower top is located as a candidate area, determining a second target area in the candidate area according to the constraint conditions and the third preset thickness value of the second reinforcing rib, wherein the candidate area is perpendicular to the demolding direction; and setting the second reinforcing rib in the second target area.
[0051] It should be noted that the third preset thickness value is any value in the range of 2-10 mm. Optionally, according to the constraint condition and the third preset thickness value, multiple regions (such as Figure 6 The thickness of the second target area (such as the area shown in 61-63) is greater than the thickness of other areas. Due to the constraints of processing factors, the number of the second reinforcing ribs is less than the number of the first reinforcing ribs.
[0052] By means of the constraint condition and the third preset thickness, the setting position of the second reinforcing rib can be accurately determined from the candidate area, thereby improving the accuracy of setting the second reinforcing rib.
[0053] like Figure 7 As shown, the processing method of an embodiment of the present invention, after setting the second reinforcing rib in the second target area, the method also includes: determining the second optimized thickness value of each second reinforcing rib according to the constraint condition and the second preset thickness value of the second reinforcing rib; and setting the thickness of the second reinforcing rib according to the second optimized thickness value.
[0054] It should be noted that since the starting direction of the tower top reinforcement is more free, as long as the starting direction of the reinforcement is perpendicular to the normal direction of the tower top plane, that is, the thickness direction perpendicular to the tower top plane can be arbitrarily increased to strengthen the structure. Therefore, the use of free size optimization can ensure that the increment of the optimization variable is always consistent with the normal direction of the tower top surface, where the variable of free size optimization is the tower top plane.
[0055] Through the constraint condition and the second preset thickness value, the second optimized thickness value of each second reinforcing rib can be obtained. The second optimized thickness value is used as the thickness of the second reinforcing rib, so that the weight of the set second reinforcing rib can be made lighter. Optionally, the optimal thickness size distribution can be obtained through global optimization, that is, the second optimized thickness value is obtained.
[0056] like Figure 8 As shown, after obtaining the shock-absorbing tower provided with the first reinforcement rib and the second reinforcement rib, the shock-absorbing tower can be directly processed, wherein the thickness of the first reinforcement rib is the first optimized thickness, and the thickness of the second reinforcement rib is the second optimized thickness. Optionally, the processing plan of the shock-absorbing tower can also be output to realize data engineering processing. The operator can obtain the shock-absorbing tower provided with the first reinforcement rib and the second reinforcement rib according to the processing plan. Optionally, the thickness of the first reinforcement rib and the thickness of the second reinforcement rib are as follows: Figure 8 It should be noted that Figure 8 In the figure, the first reinforcing ribs can be represented by 81 to 88, and the second reinforcing ribs can be represented by 89 to 813. Among them, the thickness of 81, 83, 84, 85, 86 and 88 are all 2.6 mm, the thickness of 82 is 2.9 mm, and the thickness of 87 is 5.9 mm. The thickness of 89 is 3.6 mm, the thickness of 810 and 813 are both 2.6 mm, the thickness of 811 is 3.2 mm, and the thickness of 812 is 8.6 mm.
[0057] The above method of the embodiment of the present invention has at least the following characteristics:
[0058] (1) The present invention can effectively solve the problem of difficulty in reinforcing the ribs on the wall of a thin-walled barrel-shaped shock-absorbing tower. The method of cutting the thin wall in the demoulding direction can ensure that the position of the reinforcing ribs is 100% in the demoulding direction and ensure the continuity of the ribs.
[0059] (2) Compared with traditional topology optimization methods, the optimization efficiency of the present invention is high and the results are clear to interpret.
[0060] (3) The present invention does not require a very complicated space design and has high modeling efficiency.
[0061] (4) The present invention can be very lightweight, reducing the weight by 20% compared with the traditional design while ensuring that the performance is not reduced.
[0062] (5) It can effectively improve the technical capabilities of the shock tower optimization design, which is conducive to improving performance and shortening the development cycle in the later shock tower design process.
[0063] Next, another embodiment of the present invention provides a shock-absorbing tower, comprising: a first reinforcing rib, wherein the first reinforcing rib is arranged in a first target area, and the extension line direction of the first reinforcing rib is parallel to the demolding direction; wherein the first target area is determined by multiple strip areas on the side wall according to constraints and a first preset thickness value of the first reinforcing rib.
[0064] It should be noted that the first reinforcing rib is disposed in the first target area, so that the location of the first reinforcing rib can be more accurate.
[0065] In the shock-absorbing tower of the embodiment of the present invention, the thickness of the first reinforcing rib is a first optimized thickness value; wherein the first optimized thickness value is determined based on the constraint condition and the first preset thickness value.
[0066] It should be noted that by determining the first optimized thickness value through the constraint condition and the first preset thickness value, the mass of the first reinforcing rib can be made lighter.
[0067] The shock-absorbing tower of an embodiment of the present invention also includes: a second reinforcement rib, which is arranged in a second target area; wherein the second target area is determined by a candidate area based on the constraint conditions and the third preset thickness value of the second reinforcement rib, and the candidate area is the top surface area where the tower top is located, and the extension line of the candidate area is perpendicular to the demolding direction.
[0068] It should be noted that, through the constraint condition and the third preset thickness, the setting position of the second reinforcing rib can be accurately determined from the candidate area, thereby improving the accuracy of setting the second reinforcing rib.
[0069] In the shock-absorbing tower of the embodiment of the present invention, the thickness of the second reinforcing rib is a second optimized thickness value; wherein the second optimized thickness value is determined based on the constraint condition and the third preset thickness value.
[0070] It should be noted that by determining the first optimized thickness value through the constraint condition and the second preset thickness value, the mass of the second reinforcing rib can be made lighter.
[0071] The shock absorbing tower is provided with the first and second reinforcing ribs as described above, and since the first and second reinforcing ribs are lighter than before the thickness optimization, the overall weight of the shock absorbing tower is also reduced. By reducing the weight of the shock absorbing tower, the purpose of cost saving can be achieved.
[0072] Next, see Fig. 9 Another embodiment of the present invention provides a flow chart of another processing method, comprising the following steps:
[0073] Step 91: Determine the thin wall of the shock tower foundation, that is, build the basic model of the shock tower mentioned above.
[0074] Step 92: Thin wall segmentation, setting optimization variables. That is, the side wall is segmented into multiple strip regions (such as Figure 3 As shown in FIG. 1 , the thickness of each strip region can be used as an optimization design variable. At the same time, the base plane of the tower top, the shock absorber mounting table, and the inner hole flange are defined as different optimization variables. Optionally, different optimization design variables can be defined as different numbers.
[0075] Step 93: Thickness variable optimization. The thickness of each variable is optimized by the size optimization method to determine the layout position of the reinforcement. Size optimization requires the definition of the following parameters:
[0076] 1) Variable solution domain All design variables are thickness, reflecting the position of the reinforcement arrangement. Usually, the reinforcement (i.e., the first reinforcement) is defined as 2-15 mm, and the variables at the top of the tower (i.e., the second reinforcement) are defined as 2-10 mm.
[0077] 2) Goal setting The purpose of optimization design is to achieve lightweight design, so the goal is set to minimize mass.
[0078] 3) Constraints The properties that are most closely related to the shock tower are stiffness and strength. Therefore, three-directional stiffness and strength can be defined as constraints:
[0079] A.Kx> target value of stiffness in X direction; B.Ky> target value of stiffness in Y direction;
[0080] C.Kz> target value of stiffness in Z direction; D. Maximum stress of strength condition < yield strength of material;
[0081] Wherein, K represents stiffness, and Kx, Ky, and Kz represent stiffness values in the X direction, Y direction, and Z direction, respectively.
[0082] 4) Optimization solution The MultiOPT solution method of MSC.Nastran software is used for global optimization solution, and the optimal thickness size distribution is obtained, that is, the optimized thickness of each variable is obtained according to the thickness of the reinforcement, the variable thickness of the tower top and the constraints.
[0083] Step 94: Screening important variables. That is, according to the thickness optimization results, sorting is performed according to the thickness values after optimization of each variable, and selecting variables with higher thickness values. The relationship between the variables and the thickness can be shown in Table 1.
[0084]
[0085]
[0086] Table 1
[0087] Step 95: Set ribs in the area with high variable importance. Arrange ribs in the area corresponding to the variables in Table 1 based on engineering considerations. The direction of setting the ribs should follow the draft direction, and the ribs can be arranged on the inside and outside of the base thin wall. Optionally, the starting position of the ribs can be as follows: Figure 4 and Figure 5 shown.
[0088] Step 96: Thickness Dimension Optimization. The thickness dimension optimization is performed based on the new shock tower model with stiffeners. All stiffeners and foundation thin walls of the new model are used as design variables. The parameter settings are the same as those in "Step 93 Thickness Optimization". The dimension optimization in this step is used to determine the optimal thickness of the stiffeners. The optimized results are shown in Table 2.
[0089] variable thickness 5 8.6 25 5.8 12 5.6 27 4.9 20 4.3 31 3.5 29 3.2 26 3.1 8 2.8
[0090] Table 2
[0091] Step 97: Free size optimization of the tower top. Since the rib direction of the tower top is more free, it is sufficient to ensure that the rib direction is the same as the normal direction of the tower top plane, that is, the thickness direction perpendicular to the tower top plane can be arbitrarily increased to strengthen the structure. Therefore, the use of free size optimization can ensure that the increment of the optimization variable is always consistent with the normal direction of the tower top surface. The variable for free size optimization is the tower top plane, and the other parameter settings are consistent with "Step 93 Thickness Optimization". The free size optimization results are as follows: Figure 6 As shown, the areas indicated by different arrows have different thickness values.
[0092] Step 98: Modify the top ribs according to the optimization results. According to the free size optimization results, modify the top rib layout and determine the rib positions (such as Figure 7 shown).
[0093] Step 99: Optimize thickness again. After the top ribs are corrected, the top structure changes and needs to be optimized again. The thickness optimization parameter settings refer to "Step 93 Thickness Optimization". The thickness results of each part after optimization are as follows: Figure 8 shown.
[0094] Step 910: Data engineering. According to the above method, the data can be engineered using engineering software to obtain an implementable processing plan.
[0095] Next, see Fig.10 Based on the same technical concept as the above method, another embodiment of the present invention provides a processing device for a shock tower. The processing device has the same function as the above method and will not be described in detail here.
[0096] The processing device includes: a first processing module 1001, which is used to divide the side wall into multiple strip areas according to a first instruction after establishing the basic model of the shock tower, wherein the extension line direction of the strip area is parallel to the demolding direction; a first determination module 1002, which is used to determine the first thickness value of each of the strip areas according to the constraint conditions and the first preset thickness value of the first reinforcing rib; a second determination module 1003, which is used to determine the first target area among the multiple strip areas according to the first thickness value of each of the strip areas; and a second processing module 1004, which is used to set the first reinforcing rib in the first target area.
[0097] In the processing device of the embodiment of the present invention, the first determination module 1002, when determining the first target area among the multiple strip areas according to the first thickness value of each of the strip areas, is specifically used to: determine a first target thickness value that is greater than a second preset thickness value among the multiple first thickness values; and determine the strip area corresponding to the first target thickness value as the first target area.
[0098] In the processing device of the embodiment of the present invention, the first determination module 1002 is further used to, after setting the first reinforcing rib in the first target area, determine the first optimized thickness value of each first reinforcing rib based on the constraint condition and the first preset thickness value of the first reinforcing rib; the second processing module 1004 is further used to set the thickness of the first reinforcing rib based on the first optimized thickness value.
[0099] In the processing device of the embodiment of the present invention, the second determination module 1003 is also used to: take the top surface where the tower top is located as a candidate area, and determine the second target area in the candidate area according to the constraint conditions and the third preset thickness value of the second reinforcement rib, wherein the extension line of the candidate area is perpendicular to the demolding direction; the second processing module 1004 is also used to set the second reinforcement rib in the second target area.
[0100] In the processing device of the embodiment of the present invention, the first determination module is further used to, after setting the second reinforcing rib in the second target area, determine the second optimized thickness value of each of the second reinforcing ribs according to the constraint conditions and the second preset thickness value of the second reinforcing rib; the second processing module 1004 is further used to set the thickness of the second reinforcing rib according to the second optimized thickness value.
[0101] In the processing device of the embodiment of the present invention, the constraint conditions include at least one of the following: the stiffness value in the X direction is greater than the first stiffness preset value; the stiffness value in the Y direction is greater than the second stiffness preset value; the stiffness value in the Z direction is greater than the third stiffness preset value; the maximum stress of the strength working condition is less than the yield strength of the material.
[0102] Another embodiment of the present invention provides a vehicle including the shock tower as described above.
[0103] The vehicle adopts the shock-absorbing tower as described above, and since the shock-absorbing tower is light in weight, it can save fuel consumption.
[0104] Yet another embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the method for processing a shock tower as described above are implemented.
[0105] In addition, the present invention may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.
[0106] It should also 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", "comprises" or any other variations thereof are intended to cover non-exclusive inclusions.
[0107] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.
Claims
1. A method for processing a shock-absorbing tower, the shock-absorbing tower comprising a side wall and a tower top, characterized in that: include: After establishing the basic model of the shock tower, according to the first instruction, the side wall is divided into a plurality of strip regions, wherein the extension direction of the strip regions is parallel to the draft direction; Determining a first thickness value of each of the strip-shaped regions according to the constraint condition and a first preset thickness value of the first reinforcing rib; Determine a first target thickness value greater than a second preset thickness value among the plurality of first thickness values; Determine the strip area corresponding to the first target thickness value as the first target area; Disposing the first reinforcing rib in the first target area; Determining a first optimized thickness value of each of the first reinforcing ribs according to the constraint condition and the first preset thickness value of the first reinforcing ribs; According to the first optimized thickness value, setting the thickness of the first reinforcing rib; Taking the top surface where the tower top is located as a candidate area, determining a second target area in the candidate area according to the constraint condition and a third preset thickness value of the second reinforcing rib, wherein an extension line of the candidate area is perpendicular to the draft direction; Disposing the second reinforcing rib in the second target area; Determining a second optimized thickness value of each of the second reinforcing ribs according to the constraint condition and the second preset thickness value of the second reinforcing ribs; According to the second optimized thickness value, setting the thickness of the second reinforcing rib; The constraint condition includes at least one of the following: The stiffness value in the X direction is greater than the first stiffness preset value; The stiffness value in the Y direction is greater than the second stiffness preset value; The stiffness value in the Z direction is greater than the third stiffness preset value; The maximum stress of the strength condition is less than the yield strength of the material.
2. A shock tower obtained by the processing method according to claim 1, characterized in that: include: A first reinforcing rib, wherein the first reinforcing rib is arranged in a first target area, and an extension line direction of the first reinforcing rib is parallel to a drafting direction; The first target area is determined by a plurality of strip areas on the side wall according to the constraint conditions and a first preset thickness value of the first reinforcing rib.
3. The shock tower according to claim 2, characterized in that: The thickness of the first reinforcing rib is a first optimized thickness value; The first optimized thickness value is determined according to the constraint condition and the first preset thickness value.
4. The shock tower according to claim 2, characterized in that: Also includes: a second reinforcing rib, the second reinforcing rib being disposed in a second target area; The second target area is determined by a candidate area according to the constraint conditions and the third preset thickness value of the second reinforcement rib, the candidate area is the top surface area where the tower top is located, and the extension line of the candidate area is perpendicular to the demoulding direction.
5. The shock tower according to claim 2, characterized in that: The thickness of the second reinforcing rib is a second optimized thickness value; The second optimized thickness value is determined according to the constraint condition and the third preset thickness value.
6. A processing device for a shock tower as claimed in claim 2, wherein the shock tower comprises a side wall and a tower top, wherein: include: A first processing module is used for dividing the side wall into a plurality of strip regions according to a first instruction after establishing a basic model of the shock tower, wherein the extension direction of the strip region is parallel to the draft direction; A first determination module, used for determining a first thickness value of each of the strip regions according to a constraint condition and a first preset thickness value of the first reinforcing rib; A second determining module, configured to determine a first target area among the plurality of strip areas according to a first thickness value of each of the strip areas; The second processing module is used to set the first reinforcing rib in the first target area.
7. A vehicle, characterized in that: Comprising a shock absorbing tower as described in any one of claims 2-5.
8. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method for processing a shock tower as claimed in claim 1 are implemented.
Citation Information
Patent Citations
Structural design method of aluminum alloy die-casting shock-absorbing tower
CN108038308A
3D printed rear steering knuckle, manufacturing method, suspension system and vehicle
CN111976831A