Optimization of suspension parameters on ride quality of railway passenger vehicles

Author

Liao, Yun ; Wang, Ting ; Yang, Yue

Author_Institution

Sch. of Traffic & Transp. Eng., Central South Univ., Changsha, China

fYear

2011

fDate

16-18 Sept. 2011

Firstpage

4001

Lastpage

4004

Abstract

Suspension parameters of railway vehicles have an important influence to ride quality and ride comfort of vehicles. In order to analyze the influence of vehicle suspension system on ride quality of vehicles, a 6 freedom degree vertical dynamics model is established with primary and secondary suspension of vehicle. On this basis, the mathematic model of optimum design on vehicle suspension parameters is established considering stiffness and damping of primary and secondary suspension as optimum design variables. By coordinate rotation method combined with the Matlab software, vehicle suspension parameters are calculated and optimized. It is shown that ride quality index of the vehicle are decreased about 20%, ride quality of vehicles is obviously improved. The work finished in the paper provides a new method for the reasonable selection of vertical suspension parameters for railway passenger vehicles.

Keywords

damping; elasticity; railways; suspensions (mechanical components); vehicle dynamics; Matlab software; coordinate rotation method; damping; mathematic model; optimum design variable; railway passenger vehicle; ride comfort; ride quality index; stiffness; vehicle suspension parameter; vehicle suspension system; vertical dynamics model; Mathematical model; Optimization; Rail transportation; Suspensions; Vehicles; Vibrations; Optimization; Railway passenger vehicles; Ride quality; Suspension parameters;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Control Engineering (ICECE), 2011 International Conference on

Conference_Location

Yichang

Print_ISBN

978-1-4244-8162-0

Type

conf

DOI

10.1109/ICECENG.2011.6057600

Filename

6057600