Pub Date : 2026-02-09DOI: 10.1016/j.ymssp.2026.113967
Hanqiao Sun, Jingfeng Lu, Jiawen Xu, Ruqiang Yan
Impedance signals for structural health monitoring are often sparse and difficult to acquire in damaged conditions. Increasing the damage categories would significantly reduce accuracy. In this study, we propose a Conv-Transformer model that is capable of multi-task structural health monitoring, addressing the complexities of small sample datasets while handling multiple fault detection tasks, including mass loss and bolt loosening. The model enhances feature extraction by combining convolutional layers and multi-head attention within the Transformer encoder, focusing on the relative location of the peaks and the local feature of each peak in the impedance signals. These advantages enable highly accurate multi-task SHM with small samples of impedance signals. The proposed model is first trained on a large amount of data in mixed conditions and then fine-tuned with small sample data for an eight-class fault classification task. Experimental results show that the model demonstrates strong learning ability and cross-condition transferability, achieving an accuracy of 92.12% for multi-task damage identification, a 4.49% improvement over a conventional Transformer baseline. The proposed method can be applied to health conditions identification of buildings, bridges, and trusses.
{"title":"Conv-Transformer based few-shot learning for highly accurate multi-task structural health monitoring via piezoelectric impedance","authors":"Hanqiao Sun, Jingfeng Lu, Jiawen Xu, Ruqiang Yan","doi":"10.1016/j.ymssp.2026.113967","DOIUrl":"https://doi.org/10.1016/j.ymssp.2026.113967","url":null,"abstract":"Impedance signals for structural health monitoring are often sparse and difficult to acquire in damaged conditions. Increasing the damage categories would significantly reduce accuracy. In this study, we propose a Conv-Transformer model that is capable of multi-task structural health monitoring, addressing the complexities of small sample datasets while handling multiple fault detection tasks, including mass loss and bolt loosening. The model enhances feature extraction by combining convolutional layers and multi-head attention within the Transformer encoder, focusing on the relative location of the peaks and the local feature of each peak in the impedance signals. These advantages enable highly accurate multi-task SHM with small samples of impedance signals. The proposed model is first trained on a large amount of data in mixed conditions and then fine-tuned with small sample data for an eight-class fault classification task. Experimental results show that the model demonstrates strong learning ability and cross-condition transferability, achieving an accuracy of 92.12% for multi-task damage identification, a 4.49% improvement over a conventional Transformer baseline. The proposed method can be applied to health conditions identification of buildings, bridges, and trusses.","PeriodicalId":51124,"journal":{"name":"Mechanical Systems and Signal Processing","volume":"60 1","pages":""},"PeriodicalIF":8.4,"publicationDate":"2026-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146146829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cutting force modeling and machinability analysis for ultrasonic vibration-assisted thread milling of SiCp/Al composites","authors":"Ziyang Zhang, Daohui Xiang, Chaosheng Song, Shuaikun Yang, Yanqin Li, Peicheng Peng, Bo Li, Guofu Gao, Yanyan Yan, Jinglin Tong","doi":"10.1016/j.ymssp.2026.113973","DOIUrl":"https://doi.org/10.1016/j.ymssp.2026.113973","url":null,"abstract":"","PeriodicalId":51124,"journal":{"name":"Mechanical Systems and Signal Processing","volume":"1 1","pages":""},"PeriodicalIF":8.4,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146135219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-06DOI: 10.1016/j.ymssp.2026.113974
Tuo Weixiao, Wang Tianyu, Li Xingfei
{"title":"Composite control technology for rapid position alignment of inertial reference unit under high-frequency resonant constraints","authors":"Tuo Weixiao, Wang Tianyu, Li Xingfei","doi":"10.1016/j.ymssp.2026.113974","DOIUrl":"https://doi.org/10.1016/j.ymssp.2026.113974","url":null,"abstract":"","PeriodicalId":51124,"journal":{"name":"Mechanical Systems and Signal Processing","volume":"90 1","pages":""},"PeriodicalIF":8.4,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146135220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A novel adaptive multistep estimation algorithm for generating initial excitations of multi-input multi-output time waveform replication of non-stationary signals","authors":"Yucheng Zhang, Siyu Ren, Huaihai Chen, Xudong He, Ronghui Zheng","doi":"10.1016/j.ymssp.2026.113981","DOIUrl":"https://doi.org/10.1016/j.ymssp.2026.113981","url":null,"abstract":"","PeriodicalId":51124,"journal":{"name":"Mechanical Systems and Signal Processing","volume":"156 1","pages":""},"PeriodicalIF":8.4,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146135218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-06DOI: 10.1016/j.ymssp.2026.113970
Leonardo Ferreira, Rafael Teloli, Emanuele De Bono, Morvan Ouisse
{"title":"Quantification and propagation of uncertainties in electroacoustic absorbers due to temperature effects using Bayesian inference","authors":"Leonardo Ferreira, Rafael Teloli, Emanuele De Bono, Morvan Ouisse","doi":"10.1016/j.ymssp.2026.113970","DOIUrl":"https://doi.org/10.1016/j.ymssp.2026.113970","url":null,"abstract":"","PeriodicalId":51124,"journal":{"name":"Mechanical Systems and Signal Processing","volume":"46 1","pages":""},"PeriodicalIF":8.4,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146135216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-06DOI: 10.1016/j.ymssp.2026.113942
Yanlin Zhao, Qi Yun, Sifeng Bi, Xing Wang, Michael Beer
{"title":"Interval model calibration with response-consistent supervised learning network","authors":"Yanlin Zhao, Qi Yun, Sifeng Bi, Xing Wang, Michael Beer","doi":"10.1016/j.ymssp.2026.113942","DOIUrl":"https://doi.org/10.1016/j.ymssp.2026.113942","url":null,"abstract":"","PeriodicalId":51124,"journal":{"name":"Mechanical Systems and Signal Processing","volume":"211 1","pages":""},"PeriodicalIF":8.4,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146135215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-06DOI: 10.1016/j.ymssp.2026.113963
Jianwen Wang, Tian He, Hong Wang, Xu Li
{"title":"Dynamic modeling and fault feature analysis of ball-cage scraping in flywheel bearings","authors":"Jianwen Wang, Tian He, Hong Wang, Xu Li","doi":"10.1016/j.ymssp.2026.113963","DOIUrl":"https://doi.org/10.1016/j.ymssp.2026.113963","url":null,"abstract":"","PeriodicalId":51124,"journal":{"name":"Mechanical Systems and Signal Processing","volume":"1 1","pages":""},"PeriodicalIF":8.4,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146135224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-06DOI: 10.1016/j.ymssp.2026.113965
Xinhao An, Jilin Hou, Łukasz Jankowski, Qingxia Zhang
{"title":"A physics-augmented deep learning framework for structural dynamic load identification with FRF-guided state expansion","authors":"Xinhao An, Jilin Hou, Łukasz Jankowski, Qingxia Zhang","doi":"10.1016/j.ymssp.2026.113965","DOIUrl":"https://doi.org/10.1016/j.ymssp.2026.113965","url":null,"abstract":"","PeriodicalId":51124,"journal":{"name":"Mechanical Systems and Signal Processing","volume":"17 1","pages":""},"PeriodicalIF":8.4,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146135217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-06DOI: 10.1016/j.ymssp.2026.113935
Hanru Liu, Lin Zhang, Hongjun Huang, Lei Zhu
{"title":"Noise reduction of multi-rotor by adaptive phase angle control based on acoustic feedback","authors":"Hanru Liu, Lin Zhang, Hongjun Huang, Lei Zhu","doi":"10.1016/j.ymssp.2026.113935","DOIUrl":"https://doi.org/10.1016/j.ymssp.2026.113935","url":null,"abstract":"","PeriodicalId":51124,"journal":{"name":"Mechanical Systems and Signal Processing","volume":"73 1","pages":""},"PeriodicalIF":8.4,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146134501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-06DOI: 10.1016/j.ymssp.2026.113946
Jianfeng Luo, Kean Chen, Lei Yang, Jiyang Zhang, Fenghua Tian, Lei Wang, Junhuan Qiao
{"title":"A multi-strategy enhanced algorithm for active impulsive noise control","authors":"Jianfeng Luo, Kean Chen, Lei Yang, Jiyang Zhang, Fenghua Tian, Lei Wang, Junhuan Qiao","doi":"10.1016/j.ymssp.2026.113946","DOIUrl":"https://doi.org/10.1016/j.ymssp.2026.113946","url":null,"abstract":"","PeriodicalId":51124,"journal":{"name":"Mechanical Systems and Signal Processing","volume":"42 1","pages":""},"PeriodicalIF":8.4,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146134502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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