{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,26]],"date-time":"2025-12-26T07:05:47Z","timestamp":1766732747279,"version":"build-2065373602"},"reference-count":32,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2021,6,22]],"date-time":"2021-06-22T00:00:00Z","timestamp":1624320000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100012166","name":"National Key Research and Development Program of China","doi-asserted-by":"publisher","award":["2016YFC0600908"],"award-info":[{"award-number":["2016YFC0600908"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100019447","name":"Applied Basic Research Project of Shanxi Province, China","doi-asserted-by":"publisher","award":["201801D121177"],"award-info":[{"award-number":["201801D121177"]}],"id":[{"id":"10.13039\/501100019447","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Entropy"],"abstract":"<jats:p>Low-speed hoist bearings are characterized by fault features that are weak and difficult to extract. Multipoint optimal minimum entropy deconvolution adjusted (MOMEDA) is an effective method for extracting periodic pulses in a signal. However, the decomposition effect of MOMEDA largely depends on the selected pulse period and filter length. To address these drawbacks of MOMEDA and accurately extract features from the vibration signal of a hoist bearing, an adaptive feature extraction method is proposed based on iterative autocorrelation (IAC) and MOMEDA. To automatically identify the pulse period, a new evaluation index named autocorrelation kurtosis entropy (AKE) was constructed to select the optimal IAC. To eliminate the influence of the filter length on the decomposition effect, an iterative MOMEDA strategy was designed to gradually enhance signal impulse features. The Case Western Reserve University bearing dataset and bearing data from a self-made hoisting test setup were used to verify the effectiveness of IAC-MOMEDA in extracting weak features. Moreover, the capability of IAC-MOMEDA for features extraction of normal bearing vibration signal was further confirmed by field test data.<\/jats:p>","DOI":"10.3390\/e23070789","type":"journal-article","created":{"date-parts":[[2021,6,22]],"date-time":"2021-06-22T13:02:10Z","timestamp":1624366930000},"page":"789","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Application of Adaptive MOMEDA with Iterative Autocorrelation to Enhance Weak Features of Hoist Bearings"],"prefix":"10.3390","volume":"23","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6648-6419","authenticated-orcid":false,"given":"Tengyu","family":"Li","sequence":"first","affiliation":[{"name":"College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, China"},{"name":"Shanxi Province Engineering Technology Research Center for Mine Fluid Control, Taiyuan 030024, China"},{"name":"National-Local Joint Engineering Laboratory of Mining Fluid Control, Taiyuan 030024, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ziming","family":"Kou","sequence":"additional","affiliation":[{"name":"College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, China"},{"name":"Shanxi Province Engineering Technology Research Center for Mine Fluid Control, Taiyuan 030024, China"},{"name":"National-Local Joint Engineering Laboratory of Mining Fluid Control, Taiyuan 030024, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Juan","family":"Wu","sequence":"additional","affiliation":[{"name":"College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, China"},{"name":"Shanxi Province Engineering Technology Research Center for Mine Fluid Control, Taiyuan 030024, China"},{"name":"National-Local Joint Engineering Laboratory of Mining Fluid Control, Taiyuan 030024, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fen","family":"Yang","sequence":"additional","affiliation":[{"name":"School of Mechanical Engineering, North University of China, Taiyuan 030051, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,6,22]]},"reference":[{"key":"ref_1","first-page":"1","article-title":"Fault Diagnosis of Spindle Device in Hoist Using Variational Mode Decomposition and Statistical Features","volume":"2020","author":"Gu","year":"2020","journal-title":"Shock Vib."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"3429","DOI":"10.21595\/jve.2017.18454","article-title":"Condition monitoring and fault diagnosis methods for low-speed and heavy-load slewing bearings: A literature review","volume":"19","author":"Liu","year":"2017","journal-title":"J. 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