Abstract: The soft terrain spectrum is
subdivided into three strands, I.e., the original spectrum, the
effective spectrum and the rut spectrum. Accordingly, a device
for measurements of all these spectra is developed. Based on its
measuring results, a dynamic deformation model of the
interaction between vehicle and soft terrain and another model
of smoothing the enveloping profile of tyre contact area on soft
terrain are proposed for further discussion of forming mechanism
of soft terrain spectrum which dominates vehicle vibration.
Key words:
Soft terrain Terrain spectrum Vehicle vibration
* This project is supported by National Natural Science Foundation
of China. Manuscript received on March 18, 1994; revised manuscript
May 10, 1994
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