Modelling and Sensitivity Analysis of Influencing Parameters in Displacement of Dynamic Bodies
Downloads
The mathematical modeling in relation to the Six-degree freedom system of train suspension is developed and simulated for their dynamic characteristics. The important challenge in the suspension system is vertical displacement obtained from the vehicle body. To reduce vertical displacement, an analysis of the model is done by variation of parameters such as stiffness of spring and damping coefficient. The model has been created by deriving the equations of a system using Newton’s law. The developed model has the potential to analyse the dynamic characteristics of the suspension system for both displacement of the vehicle body and displacement of the wheel. The outcome of this research revealed that Secondary spring stiffness is the most dominant factor to influence the displacement of the vehicle body; Primary damping coefficient is the most dominant factor to influence displacement of the wheel.
Mitra, N.Benerjee, H.A. Khalane, M.A. Sonawane, D.R. Joshi, G.R. Bagul. Simulation and Analysis of Full Car Model for various Road profile on an analytically validated MATLAB/SIMULINK model, IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE), 22-33.
P.M. Jawahar and K.N. Gupta. Mathematical modelling for lateral dynamic simulation of a railway vehicle with conventional and unconventional wheelset, Mathl Comput. Modelling, 14, 1990, 989 - 994.
Saurav Talukdar, Anupam Mazumdar, Murukesh Mullasseril, Karuna Kalita and Aditya Ujjwal, Mathematical Modeling in Vehicle Ride Dynamics, SAE International, 2012.
Kumar, MS, & Jawahar. P.M. Computer Simulation of the Response of a Railway Vehicle Carbody, Proceedings of the ASME 2002 International Mechanical Engineering Congress and Exposition, 2002, 147-153.
G. Gu, D. M. Lilley, F. J. Franklin. A structural articulation method for assessing railway bridges subject to dynamic impact loading from track irregularities, Vehicle System Dynamics, 48, 2010, 1077-1095.
M. Hamed, B. Tesfa, F. Gu and A. D. Ball, A study of the suspension system for the diagnosis of dynamic characteristics, 20th International Conference on Automation and Computing, Cranfield, 2014, 152-157.
Karim H. Ali Abood, Prof. R. A. Khan. Railway Carriage Model to Study the Influence of Vertical Secondary Stiffness on Ride Comfort of Railway Carbody Running on Curved Tracks, Modern Applied Science, 5(2), 2010.
Nangolo N.F., Soukup.J. , Rychikova L., Skocilas J., A combined numerical and modal analysis on vertical vibration response of railway vehicle, Modelling of Mechanical and Mechatronic Systems, Procedia Engineering, 96, 2014, 310 – 319.
Alzbutas, R., & Janilionis, V. The Simulation of Dynamic Systems Using Combined Modelling. Mathematical Modelling and Analysis, 5(1), 2000, 7–17.