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Modeling and Simulation of Human Body-Vehicle-Track System for the Investigation of Ride Comfort
- Rakesh Chandmal Sharma - Maharishi Markandeshwar (Deemed To Be University), Mullana, India ,
- Neeraj Sharma - Maharishi Markandeshwar (Deemed To Be University), Mullana, India ,
- Gurpreet Singh - AIT, Amity University, Noida, India ,
- Srihari Palli - Aditya Institute of Technology and Management, Tekkali, India
Journal Article
02-15-02-0008
ISSN: 1946-391X, e-ISSN: 1946-3928
Sector:
Topic:
Citation:
Sharma, R., Sharma, N., Singh, G., and Palli, S., "Modeling and Simulation of Human Body-Vehicle-Track System for the Investigation of Ride Comfort," SAE Int. J. Commer. Veh. 15(2):175-188, 2022, https://doi.org/10.4271/02-15-02-0008.
Language:
English
Abstract:
The present article analyzes the influence of the track and rail vehicle
vibrations on the biodynamic human subject. A mathematical model of 47 degrees
of freedom (DoF) human body-vehicle-track vibratory system is formulated for the
analysis of ride behavior of the vehicle and human body system. The human body,
vehicle, and track system are assigned 7 DoF, 37 DoF, and 3 DoF, respectively,
and the system is formulated using Newton’s method. Stationary random
irregularities of the track are accounted for in the analysis, represented by
the power spectral density (PSD) function, and are used as an input to the
system. The ride comfort of the rail vehicle is examined based on the
International Organization of Standardization (ISO) comfort specifications. The
biodynamic human subject, vehicle, and track system are evaluated independently
and integrated to examine the response of one system due to the excitation of
another.