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International Journal of Automotive Technology 2002;3(3): 101-109. |
| A STUDY ON NONSTATIONARY RANDOM VIBRATION OF A VEHICLE IN TIME AND FREQUENCY DOMAINS |
| C.-M. LEE1, L. -J. ZHANG2, Y. S. WANG1 |
1University of Ulsan
2Liaoning Institute of Technology |
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| ABSTRACT |
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A time domain method for solving nonstationary random vibration caused by vehicle acceleration is first proposed in which a time changing model is established for representing nonstationary excitation of a rough road. Furthermore a novel frequency domain method called the transient power spectral density with spatial frequency (TPSD) is presented to obtain a response of vehicle system in frequency domain. This method has been proved to be valid y comparing numerical results with the exact solution. |
| Key Words:
Nonstationary excitation model of rough road, Vehicle acceleration, Transient power spectral density with spatial frequency |
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