Feature of Linear Quantum Information Entropy for Vibration Signals of Planetary Transmission Gearbox

doi:10.3969/j.issn.1000-1093.2018.12.003

Abstract

Abstract: For the nonlinearity and unstability of planetary gearbox vibration, as well as the weak fault feature during its operation, the quantum theory is introduced into calculation of information entropy, and a new feature extraction method—linear quantum information entropy (LQE) is proposed. The basic concepts of quantum theory and the linear quantum bit expression of vibration signals are introduced, and a multi-qubit system for vibration signals is established. Then a linear quantum information entropy algorithm is proposed based on the expression of multi-qubit signals. A planetary gearbox fault simulation test is performed, and the linear quantum information entropy of five state vibration signals collected by the test is solved. The calculated result of linear quantum information entropy is compared with the calculated results of time-frequency entropy (TFE), permutation entropy (PE) and sample entropy (SE). The result indicates that the linear quantum information entropy can be used effectively to extract the operating characteristics of planetary gearboxes. Key

Key words: planetarygearbox, vibrationsignal, quantumtheory, linearquantuminformationentropy, featureextraction

CLC Number:

TJ810.3⁺21

DING Chuang, FENG Fu-zhou, ZHANG Bing-zhi, WU Shou-jun. Feature of Linear Quantum Information Entropy for Vibration Signals of Planetary Transmission Gearbox[J]. Acta Armamentarii, 2018, 39(12): 2306-2312.

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第39卷第12期
2018 年12月兵工学报ACTA
ARMAMENTARIIVol.39No.12Dec. 2018

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