Automobile chassis lining matching method based on rigidity matrix

Abstract

The invention discloses an automobile chassis lining matching method based on a rigidity matrix and relates to an automobile chassis system. As for determining of the rigidity of linings of suspension, all possible combinations of the rigidity of linings of a chassis for meeting target elastic kinematics performance are precisely provided; through the method, the current situations that the linings are selected according to experience and based on single parts, and systematic understanding to the chassis linings is lacked are improved, repeated trials and errors during matching of the chassissuspension linings are avoided, and the number of the trials is greatly decreased; the suspension development matching process is optimized, and a large number of costs can be saved in application; meanwhile, the virtual prototyping development trend of current automobile development is also met, the elastic kinematics performance of the chassis suspension can be optimized directionally without the need of manufacturing an actual automobile, the suspension matching time is shortened, and the automobile development progress is accelerated; and the optimal solution of the elastic kinematics performance of a given target can be achieved with a minimum number of the linings, the possible design redundancy at the chassis suspension lining designing stage is removed, and the automobile cost is saved.

Description

technical field [0001] The invention relates to an automobile chassis system, in particular to an automobile chassis bushing matching method based on stiffness matrix. Background technique [0002] Chassis is one of the four core systems of a car, and the matching of the chassis system is the core content and difficulty of vehicle development. The performance of the car chassis directly affects the driving quality of the car. As the main assembly of the chassis system, the quality of the suspension is the most critical factor affecting the ride comfort and handling stability of the vehicle. The matching of each bushing of the chassis suspension is very important to the performance development of the vehicle. [0003] For a long time, the matching development of the suspension has focused on the matching of the main spring of the suspension, the shock absorber and the stabilizer bar. The main reason is that the number of chassis bushings is large and the angular position r...

AI Technical Summary

Problems solved by technology

In the existing method, the method of simply making samples for subjective and objective testing is extremely time-consuming and laborious, and when matching the bushings, the stiffness of the bushings of competing cars with similar structures is often used. This development method is obviously unsatisfactory

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