Mechanical Systems and Signal Processing最新文献_第7页

A real-time coupling model and kinetic behavior of flexible dual-rotor-bearing systems with blade-casing rubbing-impact 叶片-机匣摩擦-冲击柔性双转子-轴承系统的实时耦合模型及动力学行为

IF 7.9 1区工程技术

Mechanical Systems and Signal Processing Pub Date : 2025-05-16 DOI: 10.1016/j.ymssp.2025.112807

Peng Dai , Xingyu Liang , Fengtao Wang

{"title":"A real-time coupling model and kinetic behavior of flexible dual-rotor-bearing systems with blade-casing rubbing-impact","authors":"Peng Dai , Xingyu Liang , Fengtao Wang","doi":"10.1016/j.ymssp.2025.112807","DOIUrl":"10.1016/j.ymssp.2025.112807","url":null,"abstract":"<div><div>Blade-casing rubbing impact is a prevalent failure mode in aeroengine rotor systems. This study presents a real-time coupled model for the dual-rotor-bearing system, aimed at investigating the vibration transmission and behavior interference between system components. In this model, dedicated methods are developed to characterize the flexible components and the rubbing-impact phenomena, while the real-time coupling relationship is formulated. By integrating experimental testing with software analysis techniques, the influence mechanisms of rubbing-impact failure on system behavior response and bearing contact process are comprehensively revealed. Rotor deformation compels the bearings to operate persistently under misaligned conditions, resulting in the introduction of contact angles and reversal zones in the ball-race contact direction. The effects of the bearing system on rotor dynamics are categorized into three aspects: low-speed instability, contact reversal zone and non-periodic behavior, all of which contribute to the generation of harmonic responses. Moreover, periodic malicious rubbing-impact forces are induced by modal vibrations, which reduce system vibration intensity and bearing contact angles. However, the stable operation is disrupted and the critical speed is delayed, while a reduction in blade-casing clearance contributes to the expansion of rubbing-impact zone and the chaotic system behavior.</div></div>","PeriodicalId":51124,"journal":{"name":"Mechanical Systems and Signal Processing","volume":"234 ","pages":"Article 112807"},"PeriodicalIF":7.9,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144068489","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}

引用次数: 0

Modeling and analysis of thermal-dynamic coupling of sliding guide of CNC machine tools considering nonlinear characteristics 考虑非线性特性的数控机床滑动导轨热耦合建模与分析

IF 7.9 1区工程技术

Mechanical Systems and Signal Processing Pub Date : 2025-05-16 DOI: 10.1016/j.ymssp.2025.112860

Guangyong Song , Changyou Li , Zhi Tan , Jin Hao , Hang Lu , Guocheng Lv

{"title":"Modeling and analysis of thermal-dynamic coupling of sliding guide of CNC machine tools considering nonlinear characteristics","authors":"Guangyong Song , Changyou Li , Zhi Tan , Jin Hao , Hang Lu , Guocheng Lv","doi":"10.1016/j.ymssp.2025.112860","DOIUrl":"10.1016/j.ymssp.2025.112860","url":null,"abstract":"<div><div>The thermal and dynamic characteristics of the sliding guide system in CNC machine tools are critical factors influencing machining accuracy and operational stability. Nevertheless, conventional thermal or dynamic analyses in isolation are insufficient to elucidate the influence of thermal-dynamic coupling on the overall performance of the system. In this paper, based on the thermal-dynamic interaction mechanism, a thermal-dynamic coupling model of the sliding guide system is constructed. First, a multi-node thermal network model is established by accounting for the effects of bonding surface geometry and micro-morphology on contact force, thermal resistance, and heat generation. Then, a multi-degree-of-freedom nonlinear dynamic model of the sliding guide system, which takes into account the effects of thermal deformation, micro-morphology and friction of the bonding surface, frictional moments of the bearing and the nut, and the actual torque of the motor, is developed by using the concentrated mass method in order to evaluate the transient dynamic behavior. Next, the mechanism and effects of the coupling between the thermal network model and the dynamic model of the sliding guide system are analyzed in depth, which involves the interactions between thermal expansion, frictional heat generation, structural deformation and the contact forces of the moving parts. Finally, a closed-loop iterative algorithm is proposed to solve the coupled model. The accuracy and validity of the coupled model are experimentally verified. The results of the study show that there is a non-negligible interaction between the thermal and dynamic effects of the sliding guide system. The accuracy of the thermal network model considering the coupling effect is higher than the accuracy without considering the coupling effect. The coupled model is able to effectively predict the thermal behavior and dynamic properties of the system.</div></div>","PeriodicalId":51124,"journal":{"name":"Mechanical Systems and Signal Processing","volume":"234 ","pages":"Article 112860"},"PeriodicalIF":7.9,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144069765","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}

引用次数: 0

Numerical and experimental investigation of internal micromotions in Gerotor units considering contact mechanics and lubricating interfaces 考虑接触力学和润滑界面的转子单元内部微运动的数值和实验研究

IF 7.9 1区工程技术

Mechanical Systems and Signal Processing Pub Date : 2025-05-16 DOI: 10.1016/j.ymssp.2025.112809

Zubin Mistry , Andrea Vacca , Etienne Dautry , Michael Gunkel , Christian Kretzer , Matthias Krug

{"title":"Numerical and experimental investigation of internal micromotions in Gerotor units considering contact mechanics and lubricating interfaces","authors":"Zubin Mistry , Andrea Vacca , Etienne Dautry , Michael Gunkel , Christian Kretzer , Matthias Krug","doi":"10.1016/j.ymssp.2025.112809","DOIUrl":"10.1016/j.ymssp.2025.112809","url":null,"abstract":"<div><div>This paper presents a numerical approach for evaluating the performance and the micromotions of the rotors in a Gerotor unit, accompanied by an extensive experimental activity aimed at validating this approach. The simulation model begins with a geometrical module that preprocesses the CAD drawings of a given unit. The model then performs a fluid dynamic analysis using a lumped-parameter formulation to solve for the pressures inside properly defined control volumes within the unit. The fluid dynamics is solved simultaneously with the planar motion of the inner and outer rotors using Newton’s law of motion. The body motion solution is coupled with the solution of the lubricating interfaces surrounding the rotors, which is based on the Reynolds equation. Contact dynamics formulations and elastohydrodynamic relations are applied at the contact locations, considering the possibility of multiple contact locations between the two rotors. An experimental test setup was purposely built within this research to quantify the micromotions of the outer rotor, along with basic measurements of torque and outlet flow. The comparison between simulation results and experimental data shows a good match in volumetric, hydromechanical, and radial motion prediction with an accuracy of 0.9%, 2%, and 2.5% respectively. The proposed methodology gives detailed insight and understanding of the behavior of the rotors and can be used to improve the current design and evaluate new concepts.</div></div>","PeriodicalId":51124,"journal":{"name":"Mechanical Systems and Signal Processing","volume":"234 ","pages":"Article 112809"},"PeriodicalIF":7.9,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144068490","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}

引用次数: 0

Research on coupled angular-torsional vibration of unbalanced rotor 不平衡转子角扭耦合振动研究

IF 7.9 1区工程技术

Mechanical Systems and Signal Processing Pub Date : 2025-05-15 DOI: 10.1016/j.ymssp.2025.112808

Chenglong Shi , Yanhong Ma , Xueqi Chen , Zhihong Song , Jie Hong

{"title":"Research on coupled angular-torsional vibration of unbalanced rotor","authors":"Chenglong Shi , Yanhong Ma , Xueqi Chen , Zhihong Song , Jie Hong","doi":"10.1016/j.ymssp.2025.112808","DOIUrl":"10.1016/j.ymssp.2025.112808","url":null,"abstract":"<div><div>Bending-torsional coupling of unbalanced rotor may lead to combined resonance or dynamic instability in rotor systems, potentially compromising system operation. Existing studies on bending-torsional coupling often rely on rotor models that consider only lateral and torsional vibrations, neglecting the influence of pitch vibration and gyroscopic effect in flexible rotors. For this reason, the present study first develops a 3-DOF unbalanced rotor dynamic model with angular and torsional DOFs. The analysis identifies two distinct types of coupling terms in the dynamic equations that have a significant impact: periodically time-varying parameter terms and cross-multiplicative coupling terms, which are shown to induce frequency-modulated coupling between angular and torsional vibrations. Subsequently, a method for calculating the mode and forced response of the rotor is proposed. The results reveal that the gyroscopic effect tends to narrow the instability region. Finally, dedicated angular-torsional coupling instability experiments are performed, confirming the theoretical predictions.</div></div>","PeriodicalId":51124,"journal":{"name":"Mechanical Systems and Signal Processing","volume":"234 ","pages":"Article 112808"},"PeriodicalIF":7.9,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143946869","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}

引用次数: 0

Fractional quaternion central difference Kalman filter with random walk motion for deterioration prognosis of rolling bearing with multiple jump outliers 带有随机游动运动的分数四元数中心差分卡尔曼滤波用于多跳离群值滚动轴承的劣化预测

IF 7.9 1区工程技术

Mechanical Systems and Signal Processing Pub Date : 2025-05-15 DOI: 10.1016/j.ymssp.2025.112844

Qing Li

{"title":"Fractional quaternion central difference Kalman filter with random walk motion for deterioration prognosis of rolling bearing with multiple jump outliers","authors":"Qing Li","doi":"10.1016/j.ymssp.2025.112844","DOIUrl":"10.1016/j.ymssp.2025.112844","url":null,"abstract":"<div><div>Deterioration prognosis of rolling bearings is of significance for remaining useful life (RUL) estimation and predictive maintenance of mechanical systems. However, the extreme nonlinearity, fluctuations and jump outliers of the degradation process with leptokurtosis and fat-tail distribution cannot be accurately captured by conventional physics-based and data-driven models. To alleviate this bottleneck issue, in this paper, a novel fractional quaternion central difference Kalman filter with random motion (FQCDKF-RW) approach is formulated for the deterioration prognosis of rolling bearing with multiple jump outliers. Specifically, the uncertainty and volatility of the system can be captured through random walk motion and the spatiotemporal coupling relationships from multi-channel degradation of rolling bearing can be effectively fused through the quaternion-based strategy, thus the underestimated or overestimated issues of traditional models could be addressed significantly. Two experimental cases with run-to-failure datasets of rolling bearings are employed for the performance investigation of the proposed approach. Experimental results indicate that the proposed FQCDKF-RW approach has better accuracy and robustness compared with several state-of-the-art benchmarks such as pure fractional CDKF (FCDKF) and quaternion least mean square (QLMS) methods.</div></div>","PeriodicalId":51124,"journal":{"name":"Mechanical Systems and Signal Processing","volume":"234 ","pages":"Article 112844"},"PeriodicalIF":7.9,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143946868","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}

引用次数: 0

Energy-based analysis and experiment for self-synchronization of two rotors installed in two-DOF translational system 基于能量的二自由度平移系统双转子自同步分析与实验

IF 7.9 1区工程技术

Mechanical Systems and Signal Processing Pub Date : 2025-05-15 DOI: 10.1016/j.ymssp.2025.112778

Hiroki Mori , Miwa Sueda , Naruki Kuboyama , Nobuyuki Sowa , Takumi Inoue

{"title":"Energy-based analysis and experiment for self-synchronization of two rotors installed in two-DOF translational system","authors":"Hiroki Mori , Miwa Sueda , Naruki Kuboyama , Nobuyuki Sowa , Takumi Inoue","doi":"10.1016/j.ymssp.2025.112778","DOIUrl":"10.1016/j.ymssp.2025.112778","url":null,"abstract":"<div><div>An energy-based analysis for the self-synchronization of two unbalanced rotors installed in a two-DOF platform, a vibrating system with translational degrees of freedom, was performed to examine the effects of anisotropy in the vibration properties of the platform and the relative rotational directions of the rotors. Based on two conditional energy equations that were extended in the present study to apply to this system, two types of approximate analyses were formulated. One of the analyses, which was based on the solution to the set of conditional equations, revealed that the small anisotropy of the platform widens the synchronizable voltage range for co-rotating rotors, while it narrows this range for counter-rotating rotors. The other analysis, which was based on the analytical expressions for the boundaries of parameter regions satisfying each conditional equation, provided a clear understanding and theoretical predictions for the above parametric effects. The validity of the energy-based analysis as well as the analytical model was verified by comparing the analytical results not only with accurate numerical results but also with results from an experimental apparatus.</div></div>","PeriodicalId":51124,"journal":{"name":"Mechanical Systems and Signal Processing","volume":"234 ","pages":"Article 112778"},"PeriodicalIF":7.9,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143946870","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}

引用次数: 0

Harmonic analysis and experimental validation of bistable vibration energy harvesters interfaced with DSSH circuit 双稳振动能量采集器与DSSH电路接口的谐波分析与实验验证

IF 7.9 1区工程技术

Mechanical Systems and Signal Processing Pub Date : 2025-05-14 DOI: 10.1016/j.ymssp.2025.112847

Chunxiao Guo, Yan Wang, Hao Luan, Shuangchen Ren, Hui Shen

{"title":"Harmonic analysis and experimental validation of bistable vibration energy harvesters interfaced with DSSH circuit","authors":"Chunxiao Guo, Yan Wang, Hao Luan, Shuangchen Ren, Hui Shen","doi":"10.1016/j.ymssp.2025.112847","DOIUrl":"10.1016/j.ymssp.2025.112847","url":null,"abstract":"<div><div>Bistable energy harvesters (BEH) have been widely investigated for their wide operation bandwidth and high energy conversion efficiency. Since the output voltage of the BEH is alternative current (AC) and not direct current (DC), an electrical interface is required to convert AC to DC. Recently, the nonlinear treatment of the voltage on the piezoelectric element has been validated to greatly enhance the energy conversion efficiency. Among the nonlinear interface circuits, the double synchronized switch harvesting (DSSH) circuit not only allows a boost of 500% compared to the maximum output power of the standard energy harvesting (SEH) circuit, but also achieves a constant output power for a wide range of load (load-independent). This paper investigates the influence of the DSSH circuit on the BEH by harmonic analysis and experimental validation. For sake of comparison, the BEH coupled with SEH circuit is also investigated. Compared with the BEH coupled with SEH circuit, the optimal output power of the BEH coupled with DSSH circuit is increased, while the operating bandwidth is slightly shortened. In addition, under the constant frequency excitation experiment, the output power of the BEH coupled with DSSH circuit is not only significantly increased, but also almost not affected by the load. Besides, under constant amplitude excitation, the output power of the DSSH circuit is also significantly improved than its counterpart.</div></div>","PeriodicalId":51124,"journal":{"name":"Mechanical Systems and Signal Processing","volume":"234 ","pages":"Article 112847"},"PeriodicalIF":7.9,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143946867","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}

引用次数: 0

Performance assessment of a tuned inerter viscous damper with negative stiffness (NS-TIVD) for across-wind vibration control in a high-rise structure through wind tunnel tests and numerical simulations 通过风洞试验和数值模拟对负刚度调谐阻尼器（NS-TIVD）在高层结构横风振动控制中的性能进行评价

IF 7.9 1区工程技术

Mechanical Systems and Signal Processing Pub Date : 2025-05-14 DOI: 10.1016/j.ymssp.2025.112838

Weiwei Zhao , Yong Quan , Francesco Petrini , Haoshuai Qiao

{"title":"Performance assessment of a tuned inerter viscous damper with negative stiffness (NS-TIVD) for across-wind vibration control in a high-rise structure through wind tunnel tests and numerical simulations","authors":"Weiwei Zhao , Yong Quan , Francesco Petrini , Haoshuai Qiao","doi":"10.1016/j.ymssp.2025.112838","DOIUrl":"10.1016/j.ymssp.2025.112838","url":null,"abstract":"<div><div>Inerters with mass amplification and negative stiffness devices featuring high static-low dynamic stiffness significantly enhance the control effect of traditional tuned mass dampers (TMDs) on structural vibrations. However, limited research has integrated these systems within wind tunnel tests. This study establishes a theoretical model for a tuned inerter viscous damper with negative stiffness (NS-TIVD) to control wind-induced vibrations in a multi-degree-of-freedom (MDOF) model. The rack-and-pinion inerter and pre-compressed spring-type negative stiffness device are designed and fabricated using 3D printing technology. After conducting harmonic tests on the two devices, wind tunnel tests are performed on an aeroelastic 6-degree-of-freedom (6-DOF) model equipped with the NS-TIVD. Numerical simulations, extending over an extended range of parameter values, are then conducted based on the test model. The comparison between the test results and numerical simulations shows that the NS-TIVD provides a superior control effect compared to conventional tuned viscous mass dampers (TVMDs). The optimal positive stiffness coefficient of the NS-TIVD decreases with increasing inertance, while the optimal negative stiffness coefficient increases. Furthermore, the NS-TIVD, tuned to the structural first natural frequency, also effectively controls higher modal responses. This comprehensive assessment confirms the NS-TIVD’s potential for significantly improving vibration control in wind-excited structures.</div></div>","PeriodicalId":51124,"journal":{"name":"Mechanical Systems and Signal Processing","volume":"234 ","pages":"Article 112838"},"PeriodicalIF":7.9,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947076","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}

引用次数: 0

Video-based adaptive vibration modal identification via binary decomposition tree 基于视频的二叉分解树自适应振动模态识别

IF 7.9 1区工程技术

Mechanical Systems and Signal Processing Pub Date : 2025-05-14 DOI: 10.1016/j.ymssp.2025.112851

Mingguang Shan , Mengmeng Dang , Jianfeng Wang , Kunshuo Zhu , Xuefen Xiong , Zhi Zhong , Lei Yu , Bin Liu , Lei Liu

{"title":"Video-based adaptive vibration modal identification via binary decomposition tree","authors":"Mingguang Shan , Mengmeng Dang , Jianfeng Wang , Kunshuo Zhu , Xuefen Xiong , Zhi Zhong , Lei Yu , Bin Liu , Lei Liu","doi":"10.1016/j.ymssp.2025.112851","DOIUrl":"10.1016/j.ymssp.2025.112851","url":null,"abstract":"<div><div>Video-based vibration modal identification is an emerging technique for structural dynamics characteristics measurement. However, identifying physical modes typically requires extensive manual spectral interpretation by experts, or the over-estimation of candidate modes. As a result, automatic and efficient modal determination remains challenging when dealing with mode-mixed video data that contains complex mode components and large amounts of information. Here, a novel approach is presented by introducing binary decomposition tree (BDT) to adaptively separate and identify vibration modes. In the BDT framework, the original mode-mixing signal is treated as the root node, procedure modes are represented as branch nodes, and physical modes are depicted as leaf nodes. Each binary decomposition forms a subtree, and the decomposition process progresses from the mode-mixing root to the single-mode leaves. This method allows for the extraction of physical modes without manual intervention or the over-specification of dynamic behavior. A series of simulations and experimental tests were conducted to evaluate the automaticity and effectiveness of the proposed method. The results indicate that the proposed method achieves a correlation coefficient of ≥ 99.95 % and a modal assurance criterion of ≥ 99.97 % in identifying four mixed modes, with a processing speed about ten times faster than current methods. These metrics demonstrate that the proposed method surpasses existing approaches in both identification accuracy and computational efficiency.</div></div>","PeriodicalId":51124,"journal":{"name":"Mechanical Systems and Signal Processing","volume":"234 ","pages":"Article 112851"},"PeriodicalIF":7.9,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143942328","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}

引用次数: 0

A multi-sensor tool wear monitoring method based on mechanism-data fusion for industrial scenario 基于机制-数据融合的多传感器工具磨损监测方法

IF 7.9 1区工程技术

Mechanical Systems and Signal Processing Pub Date : 2025-05-14 DOI: 10.1016/j.ymssp.2025.112834

Nengsheng Kang , Haowen Ma , Feng Feng , Qihong Wu , Jianjian Wang , Kai Zhou , Chunmei Wu , Pingfa Feng

{"title":"A multi-sensor tool wear monitoring method based on mechanism-data fusion for industrial scenario","authors":"Nengsheng Kang , Haowen Ma , Feng Feng , Qihong Wu , Jianjian Wang , Kai Zhou , Chunmei Wu , Pingfa Feng","doi":"10.1016/j.ymssp.2025.112834","DOIUrl":"10.1016/j.ymssp.2025.112834","url":null,"abstract":"<div><div>In industrial manufacturing scenarios, tool wear directly impacts product quality, production efficiency, and machine reliability. However, the deployment of traditional tool condition monitoring (TCM) solutions is hindered by their reliance on invasive, costly sensors and complex configurations. This study presents an innovative, industry-oriented multi-sensor TCM framework that integrates mechanism-based modeling with data-driven intelligence. A low-cost, non-invasive sensing system is developed for compact CNC lathes, combining spindle power and vibration signals. A cutting force coefficient <em>k</em><sub>c</sub> derived from power signals is introduced as a physically interpretable indicator, capable of identifying the onset of severe tool wear under varying machining conditions. This coefficient is fused with vibration-based statistical features through a gated recurrent unit (GRU) network enhanced by attention mechanisms, forming a hybrid model for real-time tool wear estimation. Extensive experiments in realistic industrial settings validate the method’s robustness and scalability. Compared to conventional approaches, the proposed mechanism-data fusion model improves interpretability, enhances prediction accuracy, and enables deployment in cost-sensitive production lines. This research provides a novel pathway toward intelligent, explainable, and deployable TCM systems for industrial scenarios.</div></div>","PeriodicalId":51124,"journal":{"name":"Mechanical Systems and Signal Processing","volume":"234 ","pages":"Article 112834"},"PeriodicalIF":7.9,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143942327","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}

引用次数: 0