Title :
Generation of virtual road surfaces and simulation of nonlinear vibration of vehicles
Author :
Jian, Song ; Ruichen, Jin
Author_Institution :
Dept. of Autom. Eng., Tsinghua Univ., Beijing, China
Abstract :
It is very important to predict the random vibration of vehicles by simulation techniques. To study the vibration of a vehicle running on an uneven road more accurately, nonlinear factors have to be taken into account. In this case, frequency domain methods would not be applicable. A method, which makes use of a digital filter system to generate a virtual road surface according to the statistical properties of a target road surface, is introduced. Under the help of the MSS (mechanical system simulation) code ADAMS, a nonlinear vibration model of the vehicle was built. On the basis of these, by using the virtual road surface as the input of the vehicle, the random vibration of the vehicle was simulated in the time domain and the results of simulation were analyzed
Keywords :
differential equations; digital filters; filtering theory; frequency-domain analysis; mechanical engineering computing; road vehicles; software packages; time-domain analysis; vibrations; ADAMS code; digital filter system; frequency domain methods; mechanical system simulation; nonlinear factors; random vibration prediction; simulation techniques; vehicle nonlinear vibration simulation; virtual road surfaces generation; Analytical models; Automotive engineering; Biological system modeling; Differential equations; Frequency domain analysis; Nonlinear systems; Predictive models; Road vehicles; Vehicle safety; Vibrations;
Conference_Titel :
Vehicle Electronics Conference, 1999. (IVEC '99) Proceedings of the IEEE International
Conference_Location :
Changchun
Print_ISBN :
0-7803-5296-3
DOI :
10.1109/IVEC.1999.830704
