Time History and Spectrum Analysis of a Four-Wheeled Vehicle on an Uneven Road
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概要
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This paper deals with a method for analyzing the random vibration of a vehicle running on a road whose surface is uneven probabilistically. The uneven road is represented by a two-dimensional filtered Poisson process in terms of sinusoidal shape function. A four-wheeled vehicle is modeled as a frame structure, into which the effect of the road surface is fed through spring-damper systems, in the framework of the finite element method. The shape function of the structural response is obtained through mode decoupling by means of complex eigenvalue analysis and time integration of the equation of motion. It turns out that the samples of response time history are calculated in addition to response power spectra, without using the coherence function. The numerical examples are carried out in regard to a model truck chassis, and the time history, power spectrum and number of occurrences of the internal bending moments generated are estimated by using the Monte Carlo simulation technique.
- 一般社団法人日本機械学会の論文
- 1988-01-15
著者
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Xiang Wei
Department Of Mechanical Engineering Chongqing University
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NAKAGIRI Shigeru
Institute of Industrial Science, University of Tokyo
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Nakagiri Shigeru
Institute Of Industrial Science The University Of Tokyo
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