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| Test and Analysis of Special PSD of Tracked Vehicles |
| Received:July 22, 2012 Revised:October 15, 2012 |
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| DOI： |
| KeyWord:tracked vehicle road surface profiles power spectral density（PSD） spatial frequency time frequency |
| Author | Institution |
| MING Bo |
Academy of Armored Force Engineering，Beijing ，China |
| JIA Jin-feng |
Academy of Armored Force Engineering，Beijing ，China |
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| Abstract: |
| Road surface profiles model was established based on GB/T 7031—2005. The basic principle of using acceleration method to measure special PSD of tracked vehicles was analyzed. According to these theories, acceleration sensors were fix on the axles of the 1st and 5th loading wheels and the time frequency curve was obtained. Acceleration time domain curves on 4 m long wave road and off-road road at different speeds were measured and recorded. The displacement PSD was acquired by using Matlab software and standard road surface profiles were fitted and its characteristic values were calculated. |
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