Abstract—This paper presents a 37-degree of freedom coupled vertical-lateral model of Indian Railway vehicle formulated using Largrangian dynamics for the purpose of examining its dynamic behavior. The rail-vehicle for the present study is modeled as nine mass systems consisting of a carbody, two bolsters, two bogie frames and four wheel axle sets. The 37 coupled vertical-lateral motion equations are further utilized to investigate the ride behavior of Indian Railway General Sleeper and Rajdhani coach

Index Terms—Lagrangian Dynamics, Degree of freedom, Track Roughness, Frequency response function

Cite:Rakesh Chandmal Sharma, "Modeling and Simulations of Railway Vehicle System," International Journal of Mechanical Engineering and Robotics Research, Special Issue, Vol. 1, No. 1, pp. 55-66, January 2014.