Method for designing optimal damping characteristics of shock absorber of vehicle steel plate spring suspension system

Abstract

The invention relates to a method for designing optimal damping characteristics of a shock absorber of a vehicle steel plate spring suspension system, and belongs to the technical field of vehicle steel plate spring suspensions. The method is characterized by including the steps of conducting optimization design on the optimal damping ratio required by the suspension system according to parameters of the vehicle suspension system, calculating and analyzing the damping ratio of the steel plate spring suspension system according to displacement and loads measured through steel plate spring loading and unloading deformation tests, and designing the optimal damping characteristics of the shock absorber of the vehicle steel plate spring suspension system on this basis. It can be known from Matlab / simulink simulation verification that the optimal damping characteristic design value of the shock absorber of the steel plate spring suspension system can be designed according to the method, the optimal damping matching can be achieved for the vehicle steel plate spring suspension system, and vehicle driving smoothness is improved; meanwhile, repeated tests and verification can be avoided, the development speed of products can be increased, and design and test expenses can be reduced.

Description

technical field [0001] The invention relates to a vehicle leaf spring suspension system, in particular to a design method for optimum damping characteristics of a shock absorber of the vehicle leaf spring suspension system. Background technique [0002] For many trucks, leaf spring suspension systems are mostly used. Although the leaf spring has a certain damping effect, it is difficult to achieve the best damping matching for the vehicle suspension by relying on the leaf spring alone, which cannot meet the requirements of vehicle ride comfort and safety. Require. With the rapid development of the vehicle industry and the continuous increase of vehicle speed, higher design requirements are put forward for the design of the leaf spring suspension system of trucks. Therefore, it is necessary to add hydraulic shock absorbers to the vehicle leaf spring suspension system. However, at present, no reliable design method has been given for adding hydraulic shock absorbers to the le...

AI Technical Summary

Problems solved by technology

[0002] For many trucks, the leaf spring suspension system is mostly used. Although the leaf spring has a certain damping effect, it is difficult to achieve the best damping matching for the vehicle suspension by relying on the leaf spring alone, which cannot meet the requirements of vehicle ride comfort and safety. Require

With the rapid development of the vehicle industry and the continuous increase of vehicle speed, higher design requirements are put forward for the design of the leaf spring suspension system of trucks. Therefore, it is necessary to add hydraulic shock absorbers to the vehicle leaf spring suspension system. However, at present, no reliable design method has been given for adding hydraulic shock absorbers to the leaf spring suspension system. Usually, according to the type of vehicle, a certain shock absorber is selected based on experience, and then loaded into the vehicle and passed the ride comfort test of the vehicle. The vehicle's leaf spring suspension system matches the shock absorber

At present, the traditional design method of the shock absorber of the vehicle leaf spring suspension system cannot meet the design requirements of vehicle development and vehicle ride comfort, and the design cycle is long, and the test and design costs are high.

Images