Combination algorithm for blind separation of diesel engine vibration signalChinese Full Text
HAN Chun-yang;YAO Guo-feng;ZHAO Jian;ZHANG Xiu-lu;SHENG Xin;Jilin University,College of Mechanical Science and Engineering,Department of Engineering Mechanics;State Key Laboratory of Comprehensive Technology on Automobile Vibration and Noise & Safety Control;
Abstract: The mechanical system vibration signals effectively reflect the characteristics of the system and its blind deconvolution can provide the possibility of separation of source signals from mixed signals. A convolution model of the mechanical system vibration was proposed and the method of Multi-Channel Blind Least Mean Squares was combined with the method of Deflation Source so as to form the MBLMS-TDS algorithm. For verifing the reasonableness of the algorithm, it was applied in the blind deconvolution of some simulated mixed sources. As a practical example,the piston-slap signal and combustion signal of a diesel engine were extracted from the mixed vibration signal on the surface of the diesel engine piston by using the MBLMS-TDS algorithm.
- DOI:
10.13465/j.cnki.jvs.2014.06.008
- Series:
- Subject:
- Classification Code:
TN911.7
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