Simulation Analysis And Research Of Ride Comfort For Vehicle Based On Virtual Prototype

Vehicle ride comfort is one of the important factors affecting the ride comfort, andalso one of important indicator advantage in similar cars in the market competition. Inproduct design stage, the prediction and evaluation of vehicle ride quality is an importantmeans, which contributes to improve product design quality and reduce productdevelopment costs.Firstly, the dissertation expounds the basic theory of ADAMS software anddescribes the basic theory of multi-body system in detail, then assembles the vehiclevirtual prototype mode including front and rear suspension, body, steering, the tire and soon in ADAMS/Car module.Furthermore, based on the analysis on the international standard ISO2631and thenational standards on ride evaluation, the evaluation indexes used in this thesis arechosen. And then, Simulation of the model under random input and pulse are carried outsuccessfully in the four pillar test bed of ADAMS/Car Ride. Their weighted RMS canalso be calculated for ride comfort analysis. and the ride performance of the car can beacquired.At last, from the aspect of suspension parameter matching, several solutions aboutimproving the ride comfort performance are presented, and the feasibility of eachsolution is analyzed, respectively.To sum up, this thesis practiced the method of car ride evaluation based on thevirtual prototype technology, and the car ride is evaluated by simulation, and further, thesolutions of improving the car ride is discussed in depth. The results shows that the carhas a good ride comfort at low and middle speed, the ride performance at high speedneeds to be improved, vehicle ride comfort has been significantly improved byoptimizing car according to improvement program.