Virtual bench model for aluminum alloy rim impact test

Abstract

The invention discloses a virtual bench model for an aluminum alloy rim impact test. The virtual bench model comprises an impact test bench finite element model and a rim finite element model, wherein the impact test bench finite element model comprises a steel plate beam, a mounting disc and bases, the bottom plate is provided with two rubber supports, the steel plate beam is obliquely arranged, the two ends of the bottom of the steel plate beam are hinged to the two bases respectively, the two bases are connected with the two rubber supports respectively, and the mounting disc is mounted on the steel plate beam; the central axis of the mounting disc is perpendicular to the mounting surface of the steel plate beam; the rim finite element model is installed on an installation disc of the impact test bench finite element model. According to the invention, the number of physical tests is reduced, the die development and repair cost is reduced, the development period is shortened, and the development cost of sample trial-manufacture and test is reduced; meanwhile, the design and development efficiency of the rim is improved, the time for putting products into the market is shortened, application of other finished automobile research and development units of a company can be popularized, and the market competitiveness of company products is more effectively improved.

Description

technical field [0001] The invention relates to the technical field of automobile engineering, in particular to a virtual bench model for an aluminum alloy wheel rim impact test. Background technique [0002] As one of the important safety components in automobile assembly, aluminum alloy wheel bears complex loads under various working conditions, which is of great significance to the safety, ride comfort, economy and appearance of the vehicle. Therefore, there are strict standards for the design and manufacture of wheels at home and abroad. The basic tests include impact tests, bending / radial fatigue tests, etc., to ensure the safety of the designed wheels. 13° in the impact test. [0003] The wheel impact test is an important index to test the impact resistance of the wheel. This test is to simulate the situation that the wheel is impacted by foreign objects such as stones when it hits the curb or is driven. The test stipulates that the axis of the wheel mounting platfor...

AI Technical Summary

Problems solved by technology

[0010] Zang Mengyan et al. (simulation analysis of 13° impact test of aluminum alloy wheels) built the finite element model of the impact test bench, installed the wheel assembly on the virtual bench and used the LSDYNA software to simulate the dynamic impact of the rim, in which the rubber in the bench Without material parameters, the impact of the bench cannot be accurately simulated. At the same time, the tires in the wheels do not have accurate rubber data, and the simulation results are not benchmarked against the test, etc.

[0011] Currently applied virtual bench: Calculate the maximum load on the impact part of the rim through the empirical formula, load the static load evenly on the impact part of the rim, fully restrain the rim mounting plate, and then use the analysis software to conduct static force analysis to obtain the results , the disadvantage of this analysis is that the calculation stress is very low, and the impact risk point cannot be intuitively fed back. It needs to accumulate a large amount of empirical data to judge the calculation result, and cannot effectively determine the impact risk point

Images