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Ride dynamic response of commercial vehicles subjected to wheel unbalance and non-uniformity effects

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Ride dynamic response of commercial vehicles subjected to wheel unbalance and non-uniformity effects

Deodhar, Aniket (2005) Ride dynamic response of commercial vehicles subjected to wheel unbalance and non-uniformity effects. Masters thesis, Concordia University.

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Abstract

Self-exciting sources of vibration wheel unbalance and wheel non-uniformities are known to contribute to ride vibration environment of road vehicles and also to potential road damage in addition to excitations arising from terrain undulations. The present study investigates vehicle vibrations induced by non-uniformities and unbalance of the tire-wheel assembly in conjunction with terrain irregularities. A four degrees-of-freedom pitch plane model of a truck is developed to analyze ride and tire load variations under measured random road excitations. The nonlinear vehicle model comprising the adaptive foot-print tire model is analyzed under excitations arising from a range of mass unbalance and wheel non-uniformity, and phase differences in the defects of the front and rear wheels. A comprehensive parametric sensitivity analysis is carried out to study the vehicle response subjected to all the excitations. The response characteristics are evaluated in terms of measures relevant to ride quality and road damage potential, namely the overall unweighted and frequency-weighted vertical and pitch rms accelerations of the sprung mass and dynamic load coefficient (DLC), respectively.

Divisions:Concordia University > Faculty of Engineering and Computer Science > Mechanical and Industrial Engineering
Item Type:Thesis (Masters)
Authors:Deodhar, Aniket
Pagination:xi, 94 leaves : ill. ; 29 cm.
Institution:Concordia University
Degree Name:M.A. Sc.
Program:Mechanical and Industrial Engineering
Date:2005
Thesis Supervisor(s):Rakheja, Subhash and Bhat, Rama
ID Code:8700
Deposited By:Concordia University Libraries
Deposited On:18 Aug 2011 14:32
Last Modified:18 Aug 2011 14:33
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