Analysis of Train Suspension System Using MR dampers

International Conference on Advances in Materials and Manufacturing Applications 2016

Ramasastry, D.V.A.^1,2 ; Ramana, K.V.^1 ; Rao, N Mohan^2 ; Kumar, Svr Siva^1 ; Priyanka, T.G.L.^1

Department of Mechanical Engineering, K.L. University, AndhraPradesh, Guntur, India^1

Department of Mechanical Engineering, University College of Engineering, Kakinada, JNT University, Kakinada

Andhra Pradesh, India^2

关键词: Angular displacement;    High speed train (HST);    Magneto-rheological dampers;    Passive suspension system;    Primary suspension;    Semi-active suspension systems;    Suspension system;    Vertical displacements;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/149/1/012137/pdf
DOI  :  10.1088/1757-899X/149/1/012137

来源: IOP

【 摘 要 】

This paper deals with introducing MR dampers to the Train Suspension System for improving the ride comfort of the passengers. This type of suspension system comes under Semi-active suspension system which utilizes the properties of MR fluid to damp the vibrations. In case of high speed trains, the coach body is subjected to vibrations due to vertical displacement, yaw and pitch movements. When the body receives these disturbances from the ground,the transmission of vibrations to the passenger increases which affect the ride comfort. In this work, the equations of motion of suspension system are developed for both conventional passive system and semi-active system and are modelled in Matlab/Simulink and analysis has been carried out. The passive suspension system analysis shows that it is taking more time to damp the vibrations and at the same time the transmissibility of vibrations is more.Introducing MR dampers,vertical and angular displacements of the body are computed and compared. The results show that the introduction of MR dampers into the train suspension system improves ride comfort.