Optimization design method of vehicle anti-rolling system

Abstract

The invention discloses an optimization design method for a vehicle anti-rolling system. According to the method, based on a structure optimization design algorithm and an embedded machine learning model, the relation between structure design and anti-rolling energy absorption performance is rapidly predicted, a large amount of data needed by machine learning training is rapidly generated through calculation of a beam element finite element analysis model, sampling is carried out through test design, sample points are evenly distributed in a design space, and the sample size is reduced. In this way, the method has the advantage that the problem that design optimization is difficult due to the fact that the calculation amount of performance analysis of an anti-rolling system is large is solved. According to the method, the design of the anti-rolling system can be greatly accelerated, the optimized design can be given, the anti-rolling safety is improved, the weight of the system is reduced, and the fuel economy is improved.

Description

technical field [0001] The invention relates to the fields of automobile technology and special operation vehicles, in particular to a method for rapid structural performance evaluation and structural optimization design of a vehicle anti-rollover system. Background technique [0002] Car rollover is a very dangerous accident form in traffic accidents. Automobile accident statistics show that although automobile rollover accidents only account for about 3% of all vehicle accidents, the number of deaths in rollover accidents has accounted for 20%-30% of all traffic accident fatalities. In my country, the laws and regulations on frontal collision and side collision of automobiles are becoming more and more perfect, but the laws and regulations on rollover are still vacant. Therefore, the proportion of fatalities caused by rollover accidents is gradually increasing as the proportion of personnel caused by frontal collisions and side collisions gradually decreases. Therefore, ...

AI Technical Summary

Problems solved by technology

[0007] Complicated model processing and expensive calculation costs limit the optimal design of the anti-rollover system. In engineering practice, the design relies heavily on the design experience of engineers, and usually only limited local improvements are made on the premise of meeting the anti-rollover performance indicators.

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