Title: Analysis of creep force and its sensitivity on stability and vertical-lateral ride for railway vehicle

Authors: Rakesh Chandmal Sharma; Srihari Palli

Addresses: Mechanical Engineering Department, Maharishi Markandeshwar University, Mullana, Ambala, 133207, India ' Department of Mechanical Engineering, Aditya Institute of Technology and Management, Tekkali, AP, 532201, India

Abstract: This paper presents a detailed creep force analysis at wheel-rail interaction using linear creepage-creep force relationship for a 37 DOF model of an ICF coach formulated using Lagrangian dynamics. The mathematical model is validated by simulating PSD vertical and lateral acceleration of carbody and comparing the same obtained from actual testing results. The sensitivity of longitudinal, lateral creep force and lateral/spin creep moment on stability and vertical-lateral ride is analysed. It is found from the present analysis that creep forces are helpful in improving lateral ride and lateral stability for railway vehicles.

Keywords: creep force; Lagrangian dynamics; ICF coaches; longitudinal creep; lateral creep; lateral ride; lateral stability; vertical ride; railway vehicles; wheel-rail interaction; mathematical modelling; simulation; ride comfort; Indian railways; India; train passengers; passenger comfort.

DOI: 10.1504/IJVNV.2016.077474

International Journal of Vehicle Noise and Vibration, 2016 Vol.12 No.1, pp.60 - 76

Available online: 29 Jun 2016 *

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