In this paper analytical ride index studies and ISO 2631 based ride comfort analysis of a suburban MRTS railroad vehicle is presented. Track power spectral densities (PSDs) were used as inputs to a finite element (FE) model of the vehicle and track and the acceleration responses were computed using random vibration theory. From these responses, ride quality and ride comfort have been computed at different locations of the vehicle at different speeds in the vertical and lateral directions. © 2017, The Institution of Engineers (India).

Sujatha Chandramohan

Department of Mechanical Engineering

LIGHT RAIL TRANSIT

Mass transportation

Railroads

Spectral density

Vehicles

Vibrations (mechanical)

Acceleration response

Analytical studies

MASS RAPID TRANSIT SYSTEMS

RAILROAD VEHICLE DYNAMICS

RANDOM VIBRATION THEORY

RIDE COMFORTS

RIDE INDEX

RIDE QUALITY

RAPID TRANSIT

IIT Madras is a public technical and research university located in Chennai, Tamil Nadu. Founded in 1959, it is recognised as an Institute of National Importance.

IIT Madras has been ranked as the top engineering institute in India for four years in a row by the National Institutional Ranking Framework of the MHRD

It currently offers undergraduate, postgraduate and research degrees across 16 disciplines in Engineering, Sciences, Humanities and Management. About 596 faculty belonging to science and engineering departments and centres of the Institute are engaged in teaching, research and industrial consultancy.

IIT Madras

Journal of The Institution of Engineers (India): Series C

Analytical Studies on Ride Quality and Ride Comfort in Chennai Mass Rapid Transit System (MRTS) Railroad Vehicle

A very elaborate Finite Element (FE) model and a rigid body model of a typical electrical multiple unit trailer coach are described. These models were used to find the dynamic response to track irregularities in the frequency domain. The Power Spectral Density (PSD) of track irregularities was used as input to the system. The influence of different track irregularities on dynamic response and coupling between vertical and lateral dynamics was investigated. Extensive experiments were carried out, and analytical results were compared with the measured response. Copyright © 2008 Inderscience Enterprises Ltd.

International Journal of Heavy Vehicle Systems

Dynamic response of railroad vehicles: A frequency domain approach

One rigid body and three finite element models have been used to study the dynamic behaviour of a typical Electrical Multiple Unit Trailer coach running on Indian suburban tracks. Following eigenvalue analysis, dynamic responses to input excitation from rail joints and Average Vertical Profile (AVP) have been determined in the time domain, using mode superposition technique. Acceleration and displacement response at Centres of Gravity (eg) of car and bogie have been predicted. The analytical results compare well with experimental results and highlight the need to include superstructure elasticity to predict the dynamic response accurately. Copyright © 2007 Inderscience Enterprises Ltd.

Dynamic response of railroad vehicle to rail joints and average vertical profile: A time domain approach

SoutheastCon 2018

Application of Functional Safety in Autonomous Vehicles Using ISO 26262 Standard: A Survey

Contact Stress Analysis in Wheel–Rail by Hertzian Method and Finite Element Method

Journal	Data powered by TypesetJournal of The Institution of Engineers (India): Series C
Publisher	Data powered by TypesetSpringer
ISSN	22500545
Open Access	No