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Intell."],"published-print":{"date-parts":[[2024,12,15]]},"abstract":"<jats:p> In this study, the failure of a certain type of gearbox of a high-speed locomotive group with cracks is examined, and a gearbox failure assessment method that considers the coupled vibration is established and combined with mechanical signal and frequency signal to determine the basis for judging the failure of a faulty gearbox. First, according to the mechanical model of the finite element calculation, we determined the stress weak links and then the layout response stress measurement points and acceleration measurement points. We then calculated the gearbox ratio, meshing frequency, vibration frequency, mechanical response, modal response, and other frequency characteristics using the Hilbert\u2013Huang transform (HHT) method and the fast Fourier transform (FFT) algorithm to analyze the vibration signals generated by different speeds and wheel out-of-roundness conditions. These were used to calculate the frequency of the different vibration sources of the mechanical response on the weak areas. The frequency correlations of the different vibration sources on the mechanical response in the weak areas were then analyzed, and the vibration transmission law of the gearbox case was obtained. The fault determination criterion was then determined, and the final cause of the fault was obtained. <\/jats:p>","DOI":"10.1142\/s0218001424580096","type":"journal-article","created":{"date-parts":[[2024,10,4]],"date-time":"2024-10-04T10:11:48Z","timestamp":1728036708000},"source":"Crossref","is-referenced-by-count":2,"title":["Study of the Gearbox Meshing Coupling Vibration Law Based on Mechanical Signal and Frequency Signal"],"prefix":"10.1142","volume":"38","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0886-0035","authenticated-orcid":false,"given":"Hua","family":"Zou","sequence":"first","affiliation":[{"name":"School of Mechanical, Electric and Control Engineering, Beijing Jiaotong University, Beijing 100044, P.\u00a0R.\u00a0China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bingbing","family":"Cui","sequence":"additional","affiliation":[{"name":"School of Mechanical, Electric and Control Engineering, Beijing Jiaotong University, Beijing 100044, P.\u00a0R.\u00a0China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wenjing","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Mechanical, Electric and Control Engineering, Beijing Jiaotong University, Beijing 100044, P.\u00a0R.\u00a0China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhaojin","family":"Liu","sequence":"additional","affiliation":[{"name":"CRRC Changchun Railway Vehicles Co., Ltd., Changchun 130062, P.\u00a0R.\u00a0China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"219","published-online":{"date-parts":[[2024,11,22]]},"reference":[{"issue":"2","key":"S0218001424580096BIB001","first-page":"447","volume":"43","author":"Chen C. 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