Harmonic Wavelet Packet Analysis of Friction-Induced Vibration |
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| Authors: | Guobin Li Yuanhua Lin Hongzhi Wang Haijun Wei Guoyou Wang |
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| Affiliation: | 1. Marine Engineering College , Dalian Maritime University No. 1 Linghai Road , Dalian City , Liaoning , 116026 , China;2. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation , Southwest Petroleum University , Chengdu , 610500 , P. R. China |
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| Abstract: | Friction and wear tests of a piston ring against the cylinder of a marine diesel engine were conducted on a pin-on-disc tester. The vibration signals under different wear conditions were studied utilizing the discrete harmonic wavelet packet transform (DHWPT). It was shown that the weak friction-induced vibration signals could be extracted using the DHWPT. When the wear behavior is mild, the friction-induced vibration is linear. When the wear behavior is relatively severe, the friction-induced vibration changes from linear to nonlinear. When the wear behavior is more severe, the friction-induced vibration is nonlinear. |
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| Keywords: | Harmonic Wavelet Packet Friction-Induced Vibration Wear |
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