A whole vehicle head-on collision simulation suspension and a failure method thereof

A frontal collision and suspension technology, which is applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as inability to reflect the collision process, long cycle, failure of simulated powertrain rubber mounts, etc., and achieve error reduction Small, improve the effect of failure problems

Active Publication Date: 2019-06-14
天津龙创世纪汽车设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The failure of the mount will affect the motion behavior of the powertrain during the collision process, while the traditional modeling method often ignores the failure of the mount due to the impact, resulting in a large difference between the simulation results and the test results, which cannot

Method used

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  • A whole vehicle head-on collision simulation suspension and a failure method thereof
  • A whole vehicle head-on collision simulation suspension and a failure method thereof
  • A whole vehicle head-on collision simulation suspension and a failure method thereof

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Embodiment Construction

[0028] Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings:

[0029] Such as figure 2 As shown in the present invention, the simulated power assembly rubber suspension in the CAE model of the whole vehicle frontal collision according to the present invention includes a sleeve 3, and also includes a metal casting cantilever 1 sleeved in the sleeve 3, and the The fixing medium between the sleeve 3 and the metal casting cantilever 1 is rubber 2 . The bottom of the sleeve 3 is provided with a second mounting bracket 7, and the metal casting cantilever 1 is fixed with a first mounting bracket 4, the first mounting bracket 4 and the second mounting bracket 7 The ends are all provided with mounting holes 6 on the side of the vehicle body. The metal casting cantilever 1 is provided with a powertrain side mounting hole 5, the number of the powertrain side mounting hole 5 is 2, and the metal casting cantilever 1 is ...

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PUM

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Abstract

The invention discloses a whole vehicle head-on collision simulation suspension and a failure method thereof. The method comprises the following steps: 1, inputting suspension failure force; through collision test output or suspension engineers, shear failure force and pull-out force of the metal casting cantilever under high-speed impact are provided; the tensile strain of the sheet metal part isobtained through a material tensile test; 2, building a suspension failure model; wherein the sleeve and the first mounting bracket are suspended; the second mounting bracket uses a shell unit; connecting the suspension model. The method comprises the steps that firstly, a sleeve is arranged in a suspension failure model, the sleeve is coupled with a rubber node, the built suspension failure model is connected to a vehicle body and a power assembly system through Bolt according to the input failure force, a complete vehicle front collision model is built, thirdly, the model is debugged, debugged, calculated and analyzed, a result is subjected to post-processing, and a key curve, pictures and animations are output. According to the invention, a rubber (MAT7 MAT-BLATZ-KO-RUBBER) material isadopted, so that the problem of failure when the suspension is subjected to front high-speed impact can be effectively improved, and a real collision process can be better reflected.

Description

technical field [0001] The invention relates to the technical field of computer-aided engineering (CAE), in particular to a vehicle frontal collision simulation mount and a method for its failure. Background technique [0002] The passive safety of automobiles is an essential link in the development of automobiles. With the development of numerical simulation technology, using computer-aided engineering (CAE) simulation to simulate vehicle collisions has become an important method to improve passive safety of automobiles, and it also solves the problem of collisions. The problem of high cost and long period of physical experiment. The vehicle crash model is composed of multiple assembly systems. During the crash analysis process, the components of each system deform and move according to the material properties and the contact relationship between them. As a system with relatively large mass and rigidity, the powertrain has the most obvious impact on vehicle acceleration an...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCY02T90/00
Inventor 马蒙
Owner 天津龙创世纪汽车设计有限公司
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