• M. A. Kumbhalkar
• Dr. D. V. Bhope
• Dr. A. V. Vanalkar
• P. P. Chaoji

A vibration analysis of suspension of rail vehicle has to be performed which reflects both the varying load and response. A rail vehicle experiences lateral and vertical effect in very high response due to track imperfection, tractive effort, breaking effort, curving and tracking. The differential equation for vibration analysis gives the time dependent response in the superstructure by including damping forces and inertial forces in the equation and each node is subjected to a sinusoidal function of the peak amplitude for that node. This paper represents the vibration response of rail vehicle having primary and secondary suspension with vertical, lateral and longitudinal damping. At first, the complex structure of dynamics of rail vehicle is to simplify in two mass damper suspension models to solve complex differential equation to find its natural frequency and amplitude. The aim is to check dynamic sinusoidal variations for the failure response of primary suspension spring by finding the natural frequency of model and excitation frequency of rail. The vibration response of two mass suspension systems with base excitation is obtained analytically using differential equation which gives peak amplitude by steady state solution. The mathematical model for increasing complexity i.e. for lateral and roll dynamics has also been developed and vibration analyzer is used to find dynamic behavior of rail vehicle in running condition at an average speed of 80-100 km/hr for number of instances during smooth track, curving and tracking.

Spring mass damper system, vibration analyzer, rail vehicle, dynamic analysis, modal & harmonic analysis.

"Dynamic Analysis and Experimental Investigation for Vibration Response of Suspension System of Indian Railway Vehicle", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.1-13, May-2019, Available :http://www.jetir.org/papers/JETIRBQ06001.pdf

"Dynamic Analysis and Experimental Investigation for Vibration Response of Suspension System of Indian Railway Vehicle", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp1-13, May-2019, Available at : http://www.jetir.org/papers/JETIRBQ06001.pdf