NDLI: Random displacement and acceleration responses of vehicles with uncertainty

Content Provider	Springer Nature Link
Author	Dai, Jun Gao, Wei Zhang, ng
Copyright Year	2011
Abstract	Dynamic displacement and acceleration responses of cars with uncertain parameters under random road input excitations are investigated by using a quarter-car model. Based on the theory of random vibration, the vehicle’s random displacement and acceleration responses are developed in time domain and frequency domain. The sprung mass, unsprung mass, suspension damping, suspension and tire stiffness are considered as random variables. The mean value, standard deviation and variation coefficient of the vehicle’s natural frequencies and mode shapes are obtained by using the Monte-Carlo simulation method. The computational expressions for the numerical characteristics of the root mean square value of vehicle’s random displacement and acceleration responses in the frequency domain are developed by means of the random variable’s functional moment method and algebra synthesis method. The influences of the uncertainty of the vehicle’s parameters on the vehicle’s random responses are investigated in detail using a practical example, and some useful conclusions are obtained.
Starting Page	1221
Ending Page	1229
Page Count	9
File Format	PDF
ISSN	1738494X
Journal	Journal of Mechanical Science and Technology
Volume Number	25
Issue Number	5
e-ISSN	19763824
Language	English
Publisher	Korean Society of Mechanical Engineers
Publisher Date	2011-08-08
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Vehicles Quarter car model Uncertainty Random responses Random variables Industrial and Production Engineering Vibration, Dynamical Systems, Control Mechanical Engineering
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Mechanical Engineering

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