CN109960877B - Method and system for analyzing strength of automobile battery pack bracket - Google Patents
Method and system for analyzing strength of automobile battery pack bracket Download PDFInfo
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- CN109960877B CN109960877B CN201910229032.1A CN201910229032A CN109960877B CN 109960877 B CN109960877 B CN 109960877B CN 201910229032 A CN201910229032 A CN 201910229032A CN 109960877 B CN109960877 B CN 109960877B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
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- G06F30/20—Design optimisation, verification or simulation
- G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
Abstract
The invention relates to an analysis method and a system for the strength of an automobile battery pack bracket, wherein the method comprises the following steps: carrying out acceleration road spectrum acquisition on the battery pack bracket to obtain the maximum actually measured acceleration of the battery pack bracket; carrying out finite element analysis in an automobile frame system to obtain the corresponding maximum response acceleration, wherein the automobile frame system comprises an automobile frame, a battery pack support arranged on the automobile frame and a battery pack arranged in the battery pack support; and calculating to obtain a road surface excitation value according to the maximum actual measurement acceleration and the maximum response acceleration, and calculating to obtain a corresponding load boundary value according to the road surface excitation value. The method for analyzing the strength of the automobile battery pack support can calculate a reasonable load boundary value, so that the potential of light weight optimization of the battery pack support is improved.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to an analysis method and system for the strength of an automobile battery pack support.
Background
With the development of economy and the improvement of technology, the quantity of automobile preservation of urban residents is rapidly increased, and road traffic accidents become one of the important threats to human life safety. Therefore, how to improve the overall safety performance of the automobile has become one of the most important research directions for automobile engineers.
For a new energy truck, the battery pack mounting bracket assembly is an important component of the whole truck. The new energy truck battery pack mounting bracket assembly is used as one of the vehicle body assemblies, and the main function of the new energy truck battery pack mounting bracket assembly is to fix a storage battery device so as to ensure that the storage battery supplies power for normal running of an automobile and normal operation of an electronic system in the automobile. Since the weight of the battery pack holder exceeds 100kg, it is necessary to reduce the weight of the battery pack holder. The approach for realizing light weight is usually to adopt a structural optimization design technology, that is, to ensure that the strength performance is not changed and carry out structural optimization to reduce weight. At present, most companies carry out road spectrum acquisition, an acceleration sensor is adhered to a battery pack support, the obtained maximum acceleration is directly used as an input condition of the strength working condition, and then the gravity field analysis is carried out in a finite element model at the maximum acceleration.
However, the method uses the measured absolute acceleration of the battery pack support as a boundary condition, namely neglects the characteristic that the battery pack support actually moves together with the suspension system, does not use the relative acceleration of the battery pack support and the frame as the boundary condition, but uses the absolute acceleration of the battery pack support relative to the ground as the boundary condition, so that the simulated working condition environment has larger deviation from the actual working condition, and is not beneficial to the lightweight analysis and optimization processing.
Disclosure of Invention
Based on the above, the invention aims to solve the problem that in the prior art, when the strength of the automobile battery pack support is analyzed, the relative acceleration of the battery pack support and a frame is not taken as a boundary condition, but the absolute acceleration of the battery pack support relative to the ground is taken as the boundary condition, so that the simulated working condition environment has large deviation from the actual environment, and the lightweight analysis optimization processing is not facilitated.
The invention provides an analysis method for the strength of an automobile battery pack bracket, wherein the method comprises the following steps:
acquiring an acceleration road spectrum of the battery pack support to obtain the maximum actually measured acceleration of the battery pack support;
carrying out finite element analysis in an automobile frame system to obtain the corresponding maximum response acceleration, wherein the automobile frame system comprises an automobile frame, a battery pack support arranged on the automobile frame and a battery pack arranged in the battery pack support;
and calculating to obtain a road surface excitation value according to the maximum measured acceleration and the maximum response acceleration, and calculating to obtain a corresponding load boundary value according to the road surface excitation value.
The method for analyzing the strength of the automobile battery pack support comprises the steps of firstly carrying out acceleration road spectrum acquisition on an automobile, namely carrying out data actual measurement to obtain the maximum actual measurement acceleration of the battery pack support, then establishing a finite element model for an automobile frame system to carry out data simulation, applying frequency response excitation to the automobile frame system to obtain the corresponding maximum response acceleration, then calculating according to the maximum actual measurement acceleration and the maximum response acceleration to obtain a road surface excitation value, and finally calculating to obtain a proper load boundary value of the battery pack support. According to the invention, the maximum actually measured acceleration obtained through actual measurement is avoided being used as a boundary condition, and the relative acceleration of the battery pack support and the automobile frame is used as the boundary condition through data processing, so that the load boundary value obtained through calculation is more reasonable and credible, and the potential of light weight optimization of the battery pack support is improved.
The analysis method for the strength of the automobile battery pack support comprises the steps that the maximum actually-measured acceleration comprises the maximum actually-measured acceleration in the x direction, the maximum actually-measured acceleration in the y direction and the maximum actually-measured acceleration in the z direction, and the maximum response acceleration comprises the maximum response acceleration in the x direction, the maximum response acceleration in the y direction and the maximum response acceleration in the z direction.
The method for analyzing the strength of the automobile battery pack support comprises the following steps of:
establishing a finite element model of an automobile frame system;
applying a frequency response excitation between the vehicle frame and the vehicle chassis to obtain the maximum response acceleration of the battery pack support.
The method for analyzing the strength of the automobile battery pack support comprises the following steps of:
dividing the maximum measured acceleration by the maximum response acceleration to obtain the road surface excitation value;
multiplying the road surface excitation value by a safety factor to obtain the load boundary value.
The analysis method for the strength of the automobile battery pack support comprises the steps that the frequency response excitation range is 1-1.2 g, and the safety coefficient range is 1.25-1.35.
The invention also provides an analysis system for the strength of the automobile battery pack bracket, which comprises the following components:
the data acquisition module is used for carrying out acceleration road spectrum acquisition on the battery pack bracket so as to obtain the maximum actually measured acceleration of the battery pack bracket;
the modeling analysis module is used for carrying out finite element analysis in an automobile frame system to obtain the corresponding maximum response acceleration, wherein the automobile frame system comprises an automobile frame, a battery pack support arranged on the automobile frame and a battery pack arranged in the battery pack support;
and the calculation and confirmation module is used for calculating a road surface excitation value according to the maximum measured acceleration and the maximum response acceleration and calculating a corresponding load boundary value according to the road surface excitation value.
The analysis system of car battery package support intensity, wherein, the biggest measured acceleration includes the biggest measured acceleration in x direction, the biggest measured acceleration in y direction and the biggest measured acceleration in z direction, the biggest response acceleration includes the biggest response acceleration in x direction, the biggest response acceleration in y direction and the biggest response acceleration in z direction.
The analysis system of car battery package support intensity, wherein, the analysis module that models includes:
the model establishing unit is used for establishing a finite element model of the automobile frame system;
and the excitation applying unit is used for applying frequency response excitation between the automobile frame and the automobile chassis so as to obtain the maximum response acceleration of the battery pack bracket.
The analysis system of car battery package support intensity, wherein, calculation confirmation module includes:
a first calculation unit, configured to divide the maximum measured acceleration by the maximum response acceleration to obtain the road surface excitation value;
a second calculation unit configured to multiply the road surface excitation value by a safety factor to obtain the load boundary value.
The analysis system for the strength of the automobile battery pack support is characterized in that the frequency response excitation range is 1-1.2 g, and the safety coefficient range is 1.25-1.35.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a flowchart of a method for analyzing strength of a bracket of a battery pack of an automobile according to a first embodiment of the invention;
fig. 2 is a flowchart of a method for analyzing strength of a bracket of a battery pack of an automobile according to a second embodiment of the invention;
FIG. 3 is a spectrum of the maximum measured acceleration according to a second embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a finite element model constructed according to a second embodiment of the present invention;
FIG. 5 is a graph of maximum acceleration in the x-direction obtained by finite element analysis according to a second embodiment of the present invention;
fig. 6 is a schematic structural diagram of a system for analyzing strength of a bracket of a battery pack of an automobile according to a third embodiment of the present invention;
fig. 7 is a schematic structural diagram of a system for analyzing strength of a bracket of an automotive battery pack according to a fourth embodiment of the present invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
At present, most companies collect road spectrums, an acceleration sensor is adhered to a battery pack support, the obtained maximum acceleration is directly used as an intensity working condition input condition, and then the gravity field analysis is carried out in a finite element model by using the maximum acceleration.
However, the method uses the measured absolute acceleration of the battery pack support as a boundary condition, namely neglects the characteristic that the battery pack support actually moves together with the suspension system, does not use the relative acceleration of the battery pack support and the frame as the boundary condition, but uses the absolute acceleration of the battery pack support relative to the ground as the boundary condition, so that the simulated working condition environment has larger deviation from the actual working condition, and is not beneficial to the lightweight analysis and optimization processing.
In order to solve the technical problem, the present invention provides a method for analyzing strength of a bracket of an automotive battery pack, please refer to fig. 1, for the method for analyzing strength of the bracket of the automotive battery pack provided by the first embodiment of the present invention, the method includes the following steps:
s101, performing acceleration road spectrum acquisition on the battery pack support to obtain the maximum actually measured acceleration of the battery pack support.
For an automobile, the automobile comprises an automobile frame, and a battery pack support is arranged on the automobile frame. It will be appreciated that a battery pack is mounted within the battery pack holder. In this step, acceleration road spectrum acquisition is performed on the battery pack support, that is, road spectrum actual measurement operation is performed, so that the maximum actual measurement acceleration of the battery pack support is obtained.
Here, the maximum measured acceleration refers to the maximum measured acceleration in the x direction, the y direction, and the z direction. In addition, for the battery pack support, when an acceleration measuring point is selected, the battery pack support needs to be selected at symmetrical positions on the left side and the right side of the battery pack support.
S102, carrying out finite element analysis in an automobile frame system to obtain a corresponding maximum response acceleration, wherein the automobile frame system comprises an automobile frame, a battery pack support arranged on the automobile frame and a battery pack arranged in the battery pack support.
After the maximum actually measured acceleration of each detection point of the battery pack support is obtained through actual measurement, in the step, finite element analysis is carried out on the automobile frame system, and frequency response excitation is applied to the established finite element model to obtain the maximum acceleration of the battery pack support in the frame system. The maximum acceleration here is the maximum response acceleration, and is a theoretical value constructed by model fitting, and the theoretical value is compared with the maximum measured acceleration in step S101, so as to obtain a more accurate load boundary condition.
And S103, calculating to obtain a road surface excitation value according to the maximum actually measured acceleration and the maximum response acceleration, and calculating to obtain a corresponding load boundary value according to the road surface excitation value.
Further, after obtaining the maximum actually measured acceleration and the maximum response acceleration of the battery pack bracket, in this step, a road surface excitation value is calculated according to the maximum actually measured acceleration and the maximum response acceleration. Specifically, the road surface excitation value is obtained by dividing the maximum measured acceleration by the maximum response acceleration. In order to improve the safety coefficient of the automobile battery pack bracket, after the obtained road surface excitation value is calculated, the road surface excitation value is multiplied by a safety coefficient to obtain a corresponding load boundary value. And the load boundary value obtained by calculation is used as the load production standard of the battery pack bracket, but not in the prior art, the maximum actually measured acceleration of the battery pack bracket obtained by actual measurement is directly used as the safety standard, so that the safety performance is improved.
The method for analyzing the strength of the automobile battery pack support comprises the steps of firstly carrying out acceleration road spectrum acquisition on an automobile, namely carrying out data actual measurement to obtain the maximum actual measurement acceleration of the battery pack support, then establishing a finite element model for an automobile frame system to carry out data simulation, applying frequency response excitation to the automobile frame system to obtain the corresponding maximum response acceleration, then calculating according to the maximum actual measurement acceleration and the maximum response acceleration to obtain a road surface excitation value, and finally calculating to obtain a proper load boundary value of the battery pack support. According to the invention, the maximum actually measured acceleration obtained by actual measurement is avoided being used as a boundary condition, and the relative acceleration of the battery pack support and the automobile frame is used as the boundary condition through data processing, so that the load boundary value obtained through calculation is more reasonable and credible, and the potential of light weight optimization of the battery pack support is improved.
The embodiments of the present invention will be described in more detail below with reference to a more specific example. Referring to fig. 2 to 5, a method for analyzing strength of a bracket of an automotive battery pack according to a second embodiment of the present invention includes the following steps:
and S201, performing acceleration road spectrum acquisition on the battery pack support.
For an automobile, the automobile comprises an automobile frame, and a battery pack support is arranged on the automobile frame. It will be appreciated that a battery pack is mounted within the battery pack holder. In this step, the acceleration road spectrum acquisition is performed on the battery pack support, that is, the road spectrum actual measurement operation is performed, so as to obtain the maximum actual measurement acceleration of the battery pack support.
The maximum actually measured acceleration comprises a maximum actually measured acceleration in an x direction, a maximum actually measured acceleration in a y direction and a maximum actually measured acceleration in a z direction. In addition, for the battery pack support, when an acceleration measuring point is selected, the battery pack support needs to be selected at symmetrical positions on the left side and the right side of the battery pack support. As shown in fig. 3, in this step, the maximum measured acceleration x, y, and z of the battery pack holder detected are 5.1g, 5.8g, and 10.2g, respectively.
S202, establishing a finite element model of the automobile frame system.
In this embodiment, the vehicle frame system includes a vehicle frame, a battery pack support disposed on the vehicle frame, and a battery pack disposed in the battery pack support. And establishing a finite element model for the automobile frame system, wherein the established finite element model is shown in figure 4.
And S203, applying frequency response excitation between the automobile frame and the automobile chassis.
After the finite element model of the frame system is established, a frequency response excitation is applied between the frame of the automobile and the chassis of the automobile, namely, the bumpy condition of the road surface in the actual driving process is simulated, and the corresponding battery pack support can generate a frequency response. The frequency response excitation is in the range of 1-1.2 g, and in this step the applied frequency response excitation has a value of 1 g.
And S204, calculating to obtain a road surface excitation value according to the maximum actual measurement acceleration and the maximum response acceleration.
It should be noted that the maximum measured acceleration and the maximum response acceleration both include three-directional accelerations in the x direction, the y direction and the z direction. In the present embodiment, acceleration in the x direction is taken as an example for explanation.
As described above, the maximum measured acceleration in the x direction is 5.1g among the maximum measured accelerations. Referring to fig. 5, the maximum response acceleration in the x direction is 7.636 g. After obtaining the maximum actually measured acceleration and the maximum response acceleration corresponding to the x direction of a certain detection point, obtaining a road surface excitation value Kx at the maximum actually measured acceleration with the maximum response acceleration, that is:
Kx＝5.1/7.636＝0.668g
and S205, multiplying the road surface excitation value by a safety factor to obtain a load boundary value.
In order to further guarantee the safety coefficient of the battery pack support, the range of the safety coefficient is 1.25-1.35. In the present embodiment, the road surface excitation value is multiplied by the safety factor to obtain the load boundary value in the x direction, that is:
0.668*1.3＝0.868g
in this embodiment, 0.868g is taken as the boundary condition of the acceleration in the x direction of the gravity field, and the non-measured 5.1g acceleration is taken as the boundary condition of the gravity field. Similarly, the load boundary values in the y-direction and the z-direction can be calculated by the same method.
Referring to fig. 6, an analysis system for the strength of an automobile battery pack bracket according to a third embodiment of the present invention includes a data acquisition module 11, a modeling analysis module 12, and a calculation confirmation module 13, which are connected in sequence;
the data acquisition module 11 is specifically configured to:
acquiring an acceleration road spectrum of the battery pack support to obtain the maximum actually measured acceleration of the battery pack support;
the modeling analysis module 12 is specifically configured to:
carrying out finite element analysis in an automobile frame system to obtain the corresponding maximum response acceleration, wherein the automobile frame system comprises an automobile frame, a battery pack support arranged on the automobile frame and a battery pack arranged in the battery pack support;
the calculation confirmation module 13 is specifically configured to:
and calculating to obtain a road surface excitation value according to the maximum measured acceleration and the maximum response acceleration, and calculating to obtain a corresponding load boundary value according to the road surface excitation value.
Referring to fig. 7, a system for analyzing strength of a battery pack bracket of an automobile according to a fourth embodiment of the present invention includes a data acquisition module 11, a modeling analysis module 12, and a calculation confirmation module 13, which are sequentially connected;
the data acquisition module 11 is specifically configured to:
acquiring an acceleration road spectrum of the battery pack support to obtain the maximum actually measured acceleration of the battery pack support;
the modeling analysis module 12 is specifically configured to:
carrying out finite element analysis in an automobile frame system to obtain the corresponding maximum response acceleration, wherein the automobile frame system comprises an automobile frame, a battery pack support arranged on the automobile frame and a battery pack arranged in the battery pack support;
the modeling analysis module 12 includes a model establishing unit 121 and an excitation applying unit 122 connected to each other;
the model building unit 121 is specifically configured to:
establishing a finite element model of an automobile frame system;
the excitation applying unit 122 is specifically configured to:
applying a frequency response excitation between the vehicle frame and the vehicle chassis to obtain the maximum response acceleration of the battery pack support.
The calculation confirmation module 13 is specifically configured to:
and calculating to obtain a road surface excitation value according to the maximum measured acceleration and the maximum response acceleration, and calculating to obtain a corresponding load boundary value according to the road surface excitation value.
The calculation confirmation module 13 includes a first calculation unit 131 and a second calculation unit 132 connected to each other;
the first calculating unit 131 is specifically configured to:
dividing the maximum measured acceleration by the maximum response acceleration to obtain the road surface excitation value;
the second calculating unit 132 is specifically configured to:
multiplying the road surface excitation value by a safety factor to obtain the load boundary value.
Those skilled in the art will appreciate that all or part of the steps in the method for implementing the above embodiments may be implemented by a program instructing the relevant hardware. The program may be stored in a computer-readable storage medium. Which when executed comprises the steps of the method described above. The storage medium comprises: ROM/RAM, magnetic disks, optical disks, etc.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the present invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. A method for analyzing the strength of an automobile battery pack bracket is characterized by comprising the following steps:
acquiring an acceleration road spectrum of the battery pack support to obtain the maximum actually measured acceleration of the battery pack support;
carrying out finite element analysis in an automobile frame system to obtain a corresponding maximum response acceleration, wherein the automobile frame system comprises an automobile frame, a battery pack support arranged on the automobile frame and a battery pack arranged in the battery pack support;
calculating to obtain a road surface excitation value according to the maximum measured acceleration and the maximum response acceleration, and calculating to obtain a corresponding load boundary value according to the road surface excitation value;
the method for obtaining the road surface excitation value through calculation according to the maximum measured acceleration and the maximum response acceleration and obtaining the corresponding load boundary value through calculation according to the road surface excitation value comprises the following steps of:
dividing the maximum measured acceleration by the maximum response acceleration to obtain the road surface excitation value;
multiplying the road surface excitation value by a safety factor to obtain the load boundary value.
2. The method of claim 1, wherein the maximum measured acceleration comprises a maximum measured acceleration in an x-direction, a maximum measured acceleration in a y-direction, and a maximum measured acceleration in a z-direction, and the maximum response acceleration comprises a maximum response acceleration in an x-direction, a maximum response acceleration in a y-direction, and a maximum response acceleration in a z-direction.
3. The method for analyzing the strength of the bracket of the automobile battery pack as claimed in claim 2, wherein the method for performing finite element analysis on the automobile frame system to obtain the corresponding maximum response acceleration comprises the following steps:
establishing a finite element model of an automobile frame system;
applying a frequency response excitation between the vehicle frame and the vehicle chassis to obtain the maximum response acceleration of the battery pack support.
4. The method for analyzing the strength of the automobile battery pack bracket according to claim 3, wherein the frequency response excitation is in a range of 1-1.2 g, and the safety factor is in a range of 1.25-1.35.
5. An analysis system of car battery package support intensity, its characterized in that includes:
the data acquisition module is used for carrying out acceleration road spectrum acquisition on the battery pack bracket so as to obtain the maximum actually measured acceleration of the battery pack bracket;
the modeling analysis module is used for carrying out finite element analysis in an automobile frame system to obtain the corresponding maximum response acceleration, wherein the automobile frame system comprises an automobile frame, a battery pack support arranged on the automobile frame and a battery pack arranged in the battery pack support;
the calculation confirmation module is used for calculating to obtain a road surface excitation value according to the maximum measured acceleration and the maximum response acceleration and calculating to obtain a corresponding load boundary value according to the road surface excitation value;
wherein the calculation validation module comprises:
a first calculation unit, configured to divide the maximum measured acceleration by the maximum response acceleration to obtain the road surface excitation value;
a second calculation unit configured to multiply the road surface excitation value by a safety factor to obtain the load boundary value.
6. The system for analyzing strength of a battery pack holder of a vehicle of claim 5, wherein the maximum measured acceleration includes a maximum measured acceleration in x-direction, a maximum measured acceleration in y-direction and a maximum measured acceleration in z-direction, and the maximum response acceleration includes a maximum response acceleration in x-direction, a maximum response acceleration in y-direction and a maximum response acceleration in z-direction.
7. The system for analyzing the strength of a vehicle battery pack bracket of claim 6, wherein the modeling analysis module comprises:
the model establishing unit is used for establishing a finite element model of the automobile frame system;
and the excitation applying unit is used for applying frequency response excitation between the automobile frame and the automobile chassis so as to obtain the maximum response acceleration of the battery pack bracket.
8. The system for analyzing the strength of the automobile battery pack bracket according to claim 7, wherein the frequency response excitation is in a range of 1-1.2 g, and the safety factor is in a range of 1.25-1.35.
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| CN111814365A (en) * | 2020-05-26 | 2020-10-23 | 博雷顿科技有限公司 | Strength checking method for electric heavy truck uniform-section charging seat support |
| CN113295363B (en) * | 2021-05-28 | 2023-06-23 | 三一重机有限公司 | Vibration test method of battery pack bracket |
| CN114626278B (en) * | 2022-05-16 | 2022-08-05 | 湖南大学 | Method for evaluating structural performance and monitoring health of power battery bracket |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105022887A (en) * | 2015-07-27 | 2015-11-04 | 北京汽车股份有限公司 | Evaluation method and apparatus for reinforcing bracket of automobile |
| CN107219079A (en) * | 2017-04-24 | 2017-09-29 | 中国第汽车股份有限公司 | A kind of commercial car bracket assembly for battery Multi-axial Loading test-bed and endurance test method |
| CN108520133A (en) * | 2018-03-30 | 2018-09-11 | 江铃控股有限公司 | Automobile storage battery installing bracket strength analysis method |
-
2019
- 2019-03-25 CN CN201910229032.1A patent/CN109960877B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105022887A (en) * | 2015-07-27 | 2015-11-04 | 北京汽车股份有限公司 | Evaluation method and apparatus for reinforcing bracket of automobile |
| CN107219079A (en) * | 2017-04-24 | 2017-09-29 | 中国第汽车股份有限公司 | A kind of commercial car bracket assembly for battery Multi-axial Loading test-bed and endurance test method |
| CN108520133A (en) * | 2018-03-30 | 2018-09-11 | 江铃控股有限公司 | Automobile storage battery installing bracket strength analysis method |
Non-Patent Citations (2)
| Title |
|---|
| Main issues with the design of batteries to power full electric water busses;Balsamo, F等;《 2016 AEIT International Annual Conference (AEIT)》;20170427;1-6 * |
| 考虑碰撞荷载的电动保洁车车架轻量化研究;史津竹;《中国优秀硕士学位论文全文数据库 (工程科技Ⅱ辑)》;20160430(第4期);C035-49 * |
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