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Title:
FAULT DIAGNOSIS METHOD AND SYSTEM FOR GEARBOX, DEVICE, AND MEDIUM
Document Type and Number:
WIPO Patent Application WO/2024/074084
Kind Code:
A1
Abstract:
A fault diagnosis method for a gearbox, comprising: acquiring a preset parameter signal of a gearbox (S101), wherein the preset parameter signal comprises at least one of a signal of a rotational speed difference between an input shaft and an output shaft of the gearbox, and a vibration signal and an acoustic signal respectively corresponding to the input shaft, the output shaft, and a box body of the gearbox; acquiring a target time domain signal corresponding to the preset parameter signal (S102), wherein the target time domain signal comprises a parameter time domain residual signal and/or a parameter time domain difference signal; performing calculation to obtain a target signal kurtosis value corresponding to the target time domain signal (S103); determining whether the target signal kurtosis value satisfies a first fault determination condition (S104); and if yes, determining that a fault occurs in the gearbox (S104a). Further disclosed are a fault diagnosis system for a gearbox, an electronic device, and a computer readable storage medium.

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Inventors:
CAO MING (CN)
Application Number:
PCT/CN2023/114708
Publication Date:
April 11, 2024
Filing Date:
August 24, 2023
Export Citation:
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Assignee:
AECC COMMERCIAL AIRCRAFT ENGINE CO LTD (CN)
International Classes:
G01M13/028; G01M13/021
Foreign References:
CN115031959A2022-09-09
CN110082101A2019-08-02
CN105136454A2015-12-09
CN110514437A2019-11-29
CN113834657A2021-12-24
CN114371001A2022-04-19
CN105424364A2016-03-23
EP1300668A12003-04-09
US20210270244A12021-09-02
KR101275702B12013-06-17
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
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