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A Simultaneous Calibration Method for Dual-Manipulator System Based on Holistic Kinematic Error Model IEEE ASME Trans. Mechatron. (IF 6.1) Pub Date : 2025-02-10 Gang Chen, Zeyuan Huang, Fenglei Sun, Ying Cao, Qingxuan Jia, Zixuan Hao, Junting Fei
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Design and Validation of an Underactuated Modular Exoskeleton With Multijoint Coupling Assistance for Enhancing Human Locomotion With Reduced Hip Impact IEEE ASME Trans. Mechatron. (IF 6.1) Pub Date : 2025-02-10 Xinyu Wu, Aibin Zhu, Chunli Zheng, Lei Shi, Peng Xu, Bingsheng Bao, Jing Zhang, Xiao Li
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Repetitive transient impact detection and its application in cross-machine fault detection of rolling bearings Mech. Syst. Signal Process. (IF 7.9) Pub Date : 2025-02-08 Xin Kang, Junsheng Cheng, Yu Yang, Feng Liu
This paper aims to develop a rolling bearing fault detection method that can be directly applied to unseen domains, addressing the limitations of current transfer learning methods, include the dependency on target domain data for domain adaptation methods and the lack of interpretability for domain generalization methods. Inspired by the intrinsic indicator of rolling bearing fault, i.e, repetitive
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Multi-channel adjoint least mean square algorithm with momentum factor applied on active noise control Mech. Syst. Signal Process. (IF 7.9) Pub Date : 2025-02-08 Xiaoyi Shen, Yu Guo, Junwei Ji, Dongyuan Shi, Woon-Seng Gan
Active noise control (ANC) is extensively utilized to attenuate unwanted environmental noise, creating a more conducive environment for work and daily activities. Traditional approaches face challenges when scaled to larger areas using multi-channel ANC (McANC) due to escalating computational burden and slower convergence speeds as channel numbers increase. To overcome these limitations, we introduce
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Phononic crystals with non-quantized Zak phases for controlling interface state frequencies Mech. Syst. Signal Process. (IF 7.9) Pub Date : 2025-02-08 Seongmin Park, Wonju Jeon
Topological interface and edge states have been extensively studied in phononic and photonic crystals with Zak phases quantized at 0 or π. In this work, we design phononic crystals with non-quantized Zak phases ranging from ?0.45π to 0.45π by deliberately breaking the symmetry of the unit cell. Through adjustments of the non-quantized Zak phase, we control the phases of waves reflected from the phononic
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Remaining useful life prediction for stochastic deteriorating Devices: A direct approach via inverse degradation modeling Mech. Syst. Signal Process. (IF 7.9) Pub Date : 2025-02-07 Tianmei Li, Zhenyu Cai, Zhaoju Zeng, Zhengxin Zhang, Xiaosheng Si
Remaining useful life (RUL) prediction has been extensively recognized for its fundamental and significant value in enhancing safety, improving reliability, and reducing cost for industrial devices. The advancement of condition monitoring (CM) for degrading devices stimulates the development and prosperity of data-driven prognosis approach for RUL prediction, among which the stochastic-data-driven
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Performance evaluation of elevators using a novel hierarchical softmax regression model Mech. Syst. Signal Process. (IF 7.9) Pub Date : 2025-02-07 Dapeng Niu, Minghao Yang, Mingxing Jia, Hongli Jin, Gang Luo
Elevator performance evaluation plays a guiding role in improving passenger experience and directing the maintenance work. Traditional elevator performance evaluation studies mainly depend on defect data or pertinent norms while ignoring the operation performance. In order to solve these issues, a new method for performance evaluation using hierarchical softmax regression (HSR) based on the operating
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A Lock-In thermography based post-processing scheme for the detection of sub-surface rivet-related defects in aircraft structures Mech. Syst. Signal Process. (IF 7.9) Pub Date : 2025-02-07 Haris Ali Khan, Shahab Uddin, Sharjeel Salik, Ali Javaid, Talha Ali Khan, Zia Ul Islam
This research is focused on developing a novel Lock-In Thermography-based scanning system to detect subsurface defects in aircraft rivets. The proposed system included a customized thermographic device consisting of a thermal camera, heating source, synchronized control circuitry, and post-processing software utilizing the Discrete Wavelet Transform technique, augmented by spatial gradient and mean
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Study on developing predicted system model of cutting-edge trajectory for micro-milling process based on tool runout error, chip thickness and force signal Mech. Syst. Signal Process. (IF 7.9) Pub Date : 2025-02-07 Yao Sun, Yirong Sun, Yiming Huang, Siqian Gong, Mingsheng Sun, Ming Liu
The cutting-edge trajectory of micro end mills directly affects machining stability, surface quality and tool wear involved in micro milling process. However, the size effect and geometric characteristics of micro end mills make its cutting-edge trace diverge markedly from the traditional milling cutter paths. The cutting-edge trajectory prediction system model is specifically developed for a two-edged
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Fault detection and monitoring using a data-driven information-based strategy: Method, theory, and application Mech. Syst. Signal Process. (IF 7.9) Pub Date : 2025-02-07 Camilo Ramírez, Jorge F. Silva, Ferhat Tamssaouet, Tomás Rojas, Marcos E. Orchard
The ability to detect when a system undergoes an incipient fault is of paramount importance in preventing a critical failure. Classic methods for fault detection – including model-based and data-driven approaches – rely on thresholding error statistics or simple input-residual dependencies but face difficulties with non-linear or non-Gaussian systems. Behavioral methods – e.g., those relying on digital
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Deposition mechanism of microscopic impacting droplets on flexible porous substrates Int. J. Mech. Sci. (IF 7.1) Pub Date : 2025-02-07 Yankang Zhang, Zhe Li, Lin Li, Chengyan Wang, Jiafeng Wu, Yuanshen Xie, Zichao Yin, Dapeng Tan
Flexible and breathable porous pressure sensors are gaining attention due to their potential in wearable devices for human motion monitoring. The controllable deposition and transport of droplets on porous surfaces are critical for achieving high - conductivity printing in flexible and wearable sensors, as well as in electronic applications. Due to the intricate microstructure of porous layers, accurately
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Practical Prescribed-Time Trajectory Tracking Control for a Novel Tendon-Driven Space Manipulator via Fully Actuated System Approaches IEEE ASME Trans. Mechatron. (IF 6.1) Pub Date : 2025-02-07 Xiangxiang Zou, Hui-Jie Sun, Deshan Meng, Taowen Guo, Bin Liang
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Model-Based Robust Position Control of an Underactuated Dielectric Elastomer Soft Robot IEEE Trans. Robot. (IF 9.4) Pub Date : 2025-02-06 Giovanni Soleti, Paolo Roberto Massenio, Julian Kunze, Gianluca Rizzello
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Containment Control of Multi-Robot Systems With Non-Uniform Time-Varying Delays IEEE Trans. Robot. (IF 9.4) Pub Date : 2025-02-06 Meng Ren, Wenhang Liu, Kun Song, Ling Shi, Zhenhua Xiong
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Physics-based deep learning framework for Terahertz thickness measurement of thermal barrier coatings with variable refractive index Mech. Syst. Signal Process. (IF 7.9) Pub Date : 2025-02-06 Fengshan Sun, Binghua Cao, Mengbao Fan, Lin Liu
Accurate terahertz (THz) thickness measurement of topcoat in thermal barrier coatings remains a challenge due to the change of refractive index from uneven microstructures and temperature variations. Here, a novel physics-based deep learning framework with original sparse features is proposed to measure the topcoat thickness in an accurate and low-cost manner. Firstly, the pores in the topcoat causes
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Zero-shot pipeline fault detection using percussion method and multi-attribute learning model Mech. Syst. Signal Process. (IF 7.9) Pub Date : 2025-02-06 Longguang Peng, Wenjie Huang, Jicheng Zhang, Guofeng Du
In recent years, the machine learning (ML)-based percussion method has gained considerable attention as a cost-effective and user-friendly non-destructive testing (NDT) technique. However, traditional ML classification methods fail to identify previously unseen fault levels that are not included in the training dataset, thereby limiting their practical applicability. This paper proposes a zero-shot
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Mixed time-frequency-domain method for nonlinear hybrid floating breakwater-WEC Mech. Syst. Signal Process. (IF 7.9) Pub Date : 2025-02-06 Pengcheng Li, Haiheng Zhang, Xin Zhao, Huaqing Jin, Jun Ding, Daolin Xu
Ocean waves represent a vast and renewable resource that is prevalent across the globe. However, the relentless erosion of marine equipment and coastal structures poses an ongoing challenge to safety. The integration of a floating breakwater with a wave energy converter (FB-WEC) offers a dual solution that addresses both wave protection and energy harnessing. The attenuation of low-frequency ocean
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Stepwise self-oscillation of a photo-oscillator via time delay Int. J. Mech. Sci. (IF 7.1) Pub Date : 2025-02-06 Zhuangzhuang Zhang, Xinyan Jiang, Yunlong Qiu, Kai Li
Self-oscillating systems, characterized by ambient-energy-supply and self-control, can absorb energy from steady environment to sustain continuous motion, whereas traditional self-oscillations rely on inertia and require rapid response to excitations. This study introduces a time-delay mechanism to experimentally design a photo-oscillator based on liquid crystal elastomers (LCEs), demonstrating stepwise
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Locally activated 4D printing with programmable shapes and properties Int. J. Mech. Sci. (IF 7.1) Pub Date : 2025-02-06 Xueli Zhou, Chubang Tian, Jifeng Zhang, Luquan Ren, Lei Ren
This study innovatively proposes a locally activated magnetically responsive 4D printing strategy to solve the problem of local deformation of magnetic shape memory composites. The local activation scheme is designed to precisely regulate the thermal activation area and magnetic field parameters, and the deformation behavior of the composites can be finely controlled. In addition, the strategy is applied
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Heliquad for Mid-Flight Flipping and Full-Attitude Control Under the Complete Actuator Failure IEEE ASME Trans. Mechatron. (IF 6.1) Pub Date : 2025-02-06 Eeshan Kulkarni, Suresh Sundaram
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ZISVFM: Zero-Shot Object Instance Segmentation in Indoor Robotic Environments with Vision Foundation Models IEEE Trans. Robot. (IF 9.4) Pub Date : 2025-02-05 Ying Zhang, Maoliang Yin, Wenfu Bi, Haibao Yan, Shaohan Bian, Cui-Hua Zhang, Changchun Hua
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AirSLAM: An Efficient and Illumination-Robust Point-Line Visual SLAM System IEEE Trans. Robot. (IF 9.4) Pub Date : 2025-02-05 Kuan Xu, Yuefan Hao, Shenghai Yuan, Chen Wang, Lihua Xie
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Continuously Shaping Prioritized Jacobian Approach for Hierarchical Optimal Control with Task Priority Transition IEEE Trans. Robot. (IF 9.4) Pub Date : 2025-02-05 Yeqing Yuan, Weichao Sun
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Distributed Coverage Control for Time-Varying Spatial Processes IEEE Trans. Robot. (IF 9.4) Pub Date : 2025-02-05 Federico Pratissoli, Mattia Mantovani, Amanda Prorok, Lorenzo Sabattini
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Ambilateral Activity Recognition and Continuous Adaptation with a Powered Knee-Ankle Prosthesis IEEE Trans. Robot. (IF 9.4) Pub Date : 2025-02-05 Shihao Cheng, Curt A. Laubscher, T. Kevin Best, Robert D. Gregg
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Integrating Contact-aware CPG System for Learning-based Soft Snake Robot Locomotion Controllers IEEE Trans. Robot. (IF 9.4) Pub Date : 2025-02-05 Xuan Liu, Cagdas D. Onal, Jie Fu
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Fusion-Perception-to-Action Transformer: Enhancing Robotic Manipulation with 3D Visual Fusion Attention and Proprioception IEEE Trans. Robot. (IF 9.4) Pub Date : 2025-02-05 Yangjun Liu, Sheng Liu, Binghan Chen, Zhi-Xin Yang, Sheng Xu
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A Lightweight Powered Hip Exoskeleton with Parallel Actuation for Frontal and Sagittal Plane Assistance IEEE Trans. Robot. (IF 9.4) Pub Date : 2025-02-05 Dante Archangeli, Brendon Ortolano, Rosemarie Murray, Lukas Gabert, Tommaso Lenzi
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Simulation-Aided Policy Tuning for Black-Box Robot Learning IEEE Trans. Robot. (IF 9.4) Pub Date : 2025-02-05 Shiming He, Alexander von Rohr, Dominik Baumann, Ji Xiang, Sebastian Trimpe
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A nonlinear transmissibility function-based diagnosis approach for multi-disks rub-impact faults in rotor systems with nonlinear supports Mech. Syst. Signal Process. (IF 7.9) Pub Date : 2025-02-05 Quankun Li, Heyu Hu, Mingfu Liao, Xingjian Jing
For diagnosing rub-impact faults in rotor systems, numerous advanced methods leveraging nonlinear vibration features such as Frequency Response Function (FRF), Output Frequency Response (OFR), and Transmissibility Function (TF) have been developed and implemented. Addressing limitations in existing methods, such as the need for reference data from healthy rotors, neglect of nonlinear supports, and
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Fast assessment of non-Gaussian inputs in structural dynamics exploiting modal solutions Mech. Syst. Signal Process. (IF 7.9) Pub Date : 2025-02-05 Arvid Trapp, Peter Wolfsteiner
In various technical applications, assessing the impact of non-Gaussian and non-stationary processes on responses of dynamic systems is crucial. While simulating time-domain realizations offers an effective solution for linear dynamic systems, this method proves time-consuming for finite element (FE) models, which may contain thousands to millions of degrees-of-freedom (DOF). Given the central role
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Bio-Inspired Tensegrity Building Block With Anisotropic Stiffness for Soft Robots IEEE ASME Trans. Mechatron. (IF 6.1) Pub Date : 2025-02-05 Jie Zhang, Junhao Shi, Yuwen Zhao, Jinzhao Yang, Hamed Rajabi, Haijun Peng, Jianing Wu
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Off-Focus-Image-Restoration-Based Three-Dimensional Particle Localization for Improved Measurement Resolution IEEE ASME Trans. Mechatron. (IF 6.1) Pub Date : 2025-02-05 Jiyu Li, Buyun Chen, Shusheng Bi, Yuliang Wang
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Design and Characterization of a Magnetic Silicone Peristaltic Pump With Multiphysics Modeling IEEE ASME Trans. Mechatron. (IF 6.1) Pub Date : 2025-02-05 Wei Zhang, Bernd Gundelsweiler, Sven Urschel
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Variable Disturbance Observer-Based Robust Force Control of Servo Riveting Actuators With Nonlinear Environmental Considerations IEEE ASME Trans. Mechatron. (IF 6.1) Pub Date : 2025-02-05 Zhichao Sun, Feng Yang, Qun Luo, Yanding Wei, Zemin Pan, Qiang Fang
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Mechanical properties measurement of chromium coatings based on laser ultrasonic technology in high-temperature conditions Mech. Syst. Signal Process. (IF 7.9) Pub Date : 2025-02-04 Jiajian Meng, Xianke Li, Junrong Li, Haomiao Fang, Zhiyuan Zhu, Zerui Zhao, Enpei Zhao, LiLi Cheng, Jianhai Zhang, Hongwei Zhao
The rapid development of the laser ultrasonic technology has promoted non-contact in situ testing of the mechanical properties of materials in high-temperature environments, pursuing enhanced efficiency, precision, and applicability. This paper proposes a laser ultrasound-based technique for characterizing the mechanical properties of materials at high temperatures, and it was applied to determine
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Robust identification of distributed dynamic loads acting on multi-degree-of-freedom structures based on sparse measurement Mech. Syst. Signal Process. (IF 7.9) Pub Date : 2025-02-04 Jinshan Huang, Ying Lei, Xiongjun Yang, Xianzhi Li, Kangqian Xu, Feng Wang, Xinghua Chen
Distributed dynamic loads (DDLs) have attracted much attention due to their widespread existence in engineering. However, it remains difficult to measure them directly. Existing DDL identification algorithms have some limitations in terms of dimensionality reduction of DDLs, model order reduction, and robustness. In this study, these issues were addressed and resolved. First, the dimension of continuously
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A time-domain piecewise calculation method of a time-varying isolation platform Mech. Syst. Signal Process. (IF 7.9) Pub Date : 2025-02-04 Jiahui Wang, Jing Liu, Guang Pan
Improving low-frequency isolation performance and suppressing resonance transmission under the time-varying excitation are essential requirements for suppressing the vibration of underwater vehicles. Based on the vibration energy dispersion characteristics of time-varying systems in the frequency domain, the author proposed a time-varying isolation platform (TVIP) in previous research to broaden the
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Time-delay compensation control and stability analysis of vehicle semi-active suspension systems Mech. Syst. Signal Process. (IF 7.9) Pub Date : 2025-02-04 Guanggang Ji, Shaohua Li, Guizhen Feng, Zhengchuan Li, Xiaoguan Shen
With the aim of enhancing the ride comfort and handling stability of vehicles, an improved Takagi-Sugeno (T-S) fuzzy Smith predictive time-delay compensation control strategy (ITSFS) is proposed. Firstly, the vehicle semi-active suspension model with time-delay is established, and the influence of different time-delay sizes is analyzed. Then, combining the theory of time-delay differential equations
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A weak-form quadrature element method for modal analysis of electric motor stators Mech. Syst. Signal Process. (IF 7.9) Pub Date : 2025-02-04 Xudong Li, Chenyu Huang, Shihao Zhao, Shuheng Qiu, Wei Liu, Jinhua Chen, Chi Zhang
The modal analysis of electric stators based on energy principles has been extensively studied. However, existing methods often involve complexities in constructing axial mode shape functions to accommodate various boundary conditions (BCs). This paper presents a weak-form quadrature element method (QEM) for the modal analysis of motor stators, where Lagrange interpolation polynomials are used to construct
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Frequency-domain optimization of seismically isolated structures enhanced with negative stiffness devices Mech. Syst. Signal Process. (IF 7.9) Pub Date : 2025-02-04 Georgios I. Florakis, Konstantinos A. Kapasakalis, Evangelos J. Sapountzakis
This study investigates the frequency-domain optimization of base isolated multi-story buildings equipped with novel negative stiffness (NS) vibration control systems (VCS). The examined VCS include the KDamper, the Extended KDamper (EKD) and the Enhanced KDamper (ENKD). Previous research has demonstrated the effectiveness of these devices for seismic protection, by implementing them as standalone
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Gravitational Texture Feature Based Directional Adaptability Analysis Method for Gravity-Aided Navigation IEEE ASME Trans. Mechatron. (IF 6.1) Pub Date : 2025-02-04 Zixuan Ma, Bo Wang, Xiaoyu Wang, Zhihong Deng, Mengyin Fu
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Design and Torque Control of a Modular Reconfigurable Variable Stiffness Exoskeleton for Improved Transparency IEEE ASME Trans. Mechatron. (IF 6.1) Pub Date : 2025-02-04 Yanghui Zhu, Qingcong Wu, Bai Chen, Qirong Tang, Hong Zeng, Hongtao Wu
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Design and In-Vivo Validation of Clinically Wireless Localization System for Magnetic Robots: A Reconfigurable Sensor Array Approach IEEE ASME Trans. Mechatron. (IF 6.1) Pub Date : 2025-02-04 Yichong Sun, Yehui Li, Yisen Huang, Xuyang Ren, Wai Shing Chan, Hon Chi Yip, Philip Wai Yan Chiu, Zheng Li
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Covalently armoring graphene on diamond abrasives with unprecedented wear resistance and abrasive performance Int. J. Mach. Tool Manu. (IF 14.0) Pub Date : 2025-02-03 Qiang Lin, Sulin Chen, Hongbin Li, Zhengzong Sun, Zhinan Zhang, Martin Dienwiebel, Michael Moseler, Bin Shen
Next-generation semiconductor materials, including diamond, SiC, and GaN, offer significant advantages for high-power devices. However, the high-performance polishing of these ultrahard materials is limited by insufficient grit wear resistance and low-quality material removal with conventional diamond abrasives. In this study, we report robust integration of flexible graphene armor on diamond abrasives
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Structural response reconstruction using a system-equivalent singular vector basis Mech. Syst. Signal Process. (IF 7.9) Pub Date : 2025-02-03 Keaton Coletti, R. Benjamin Davis, Ryan Schultz
This paper develops a novel method for reconstructing the full-field response of structural dynamic systems using sparse measurements. The singular value decomposition is applied to a frequency response matrix relating the structural response to physical loads, base motion, or modal loads. The left singular vectors form a non-physical reduced basis that can be used for response reconstruction with
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Vibro-acoustic suppression in metamaterial sandwich plate using compressional-torsional coupling resonator Int. J. Mech. Sci. (IF 7.1) Pub Date : 2025-02-03 Rui Zhang, Wei Ding, Hao Liu, Peicheng Feng, Weizhe Ding, Tianning Chen, Jian Zhu
Reducing low-frequency vibration and sound radiation in lightweight sandwich structures remains a significant challenge due to the inherently long wavelength of low-frequency waves. In this study, we proposed a novel metamaterial sandwich plate with compressional-torsional coupling inertial amplification resonators to effectively attenuate low-frequency vibration and suppress sound radiation. The sandwich
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Dynamic modeling and analysis for dielectric elastomer tube actuators Int. J. Mech. Sci. (IF 7.1) Pub Date : 2025-02-03 Yuqing Guo, Liang Li, Dingguo Zhang, Wei-Hsin Liao
Dielectric elastomer tubular actuators (DETA) as a new type of smart material actuator, has attracted wide attention in recent years. Its basic working principle is to use the deformation generated by dielectric elastomers (DEs) under the electric field to achieve the actuation function. Compared with the traditional actuators, DETA has the advantages of high energy density, fast response, simple structure
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A Millimeter-Range Actuator With Submicron Precision: Principle and Application IEEE ASME Trans. Mechatron. (IF 6.1) Pub Date : 2025-02-03 Wei He, Kai Guo, Jie Sun
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Multielectrical Signal Fusion-Based Method for Bearing Fault Diagnosis in Permanent Magnet Synchronous Machines Under Dynamic Conditions IEEE ASME Trans. Mechatron. (IF 6.1) Pub Date : 2025-02-03 Jianbo Wang, Kan Liu, Dong Wei, Yongdan Chen, Jinya Chen, Li Gao, Kaiqing Li, Haozhe Luan, Jing Zhou
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Terrain Perception and Stiffness Adaptation-Based Attitude Control for Quadruped Robots IEEE ASME Trans. Mechatron. (IF 6.1) Pub Date : 2025-02-03 Yanwei Huang, Yijun Li, Guanghong Liu, Dongfang Li, Law Rob, Limin Zhu, Edmond Q. Wu
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Conditional Distribution Shift-Domain Adaptive Regression Network for Robotic Milling Force Prediction Considering Posture-Dependent Dynamic Properties IEEE ASME Trans. Mechatron. (IF 6.1) Pub Date : 2025-02-03 Chang Ni, Jixiang Yang, Han Ding
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Corrigendum to “Modal analysis of non-conservative systems with friction-induced strong nonlinear damping by using response-controlled testing” [Mech. Syst. Signal Process. 221 (2024) 111718] Mech. Syst. Signal Process. (IF 7.9) Pub Date : 2025-02-02 Taylan Karaa?a?l?, Furkan K. ?elik
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Snap-through behaviors of bistable composite panel in centrifugal environments Int. J. Mech. Sci. (IF 7.1) Pub Date : 2025-02-02 Pengpeng Liu, Jie Tang, Yang Guo, Yinghui Li
In this paper, a cross-well dynamics model of bistable composite panels in centrifugal environments is proposed. The external excitation applied at the four corners is assumed to be a uniformly distributed harmonic acceleration. Nonlinear equations are derived by combining geometric nonlinearity, thermal stresses, and centrifugal effects with the first-order shear deformation theory, and are expressed
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Analytical modelling of parallel multidirectional cutting of slender shafts Int. J. Mech. Sci. (IF 7.1) Pub Date : 2025-02-02 Wei Cai, Jingyang Xiang, Guojun Dong, Kee-hung Lai, Marian Wiercigroch
Slender shafts have wide application on the aerospace, automotive and medical devices. However, they are prone to bending deformation during cutting process due to their low rigidity, resulting in poor machining accuracy and efficiency. A parallel multidirectional cutting (PMC) method is proposed using two tools to simultaneously cut the workpiece in forward or reverse directions contributing to overcome
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Improved variational generalized nonlinear mode decomposition for separating crossed chirp modes and dispersive modes of non-stationary signals in mechanical systems Mech. Syst. Signal Process. (IF 7.9) Pub Date : 2025-02-01 Hongbing Wang, Shiqian Chen, Wanming Zhai
Recently, an adaptive divide-and-conquer method called variational generalized nonlinear mode decomposition (VGNMD) has been proposed to simultaneously extract chirp modes and dispersive modes from non-stationary signals. However, similar to numerous signal analysis techniques, the VGNMD is unsuitable for analyzing complicated non-stationary signals with crossed modes in mechanical systems because
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Task similarity guided transfer learning for acoustic emission-based rail crack assessment Mech. Syst. Signal Process. (IF 7.9) Pub Date : 2025-02-01 Si-Xin Chen, Lu Zhou, Yi-Qing Ni, Jie-Zhong Huang
Transfer learning (TL) has recently experienced significant growth in structural health monitoring (SHM), offering potential solutions to the overfitting problem caused by limited training samples by utilizing knowledge in well-trained models from source to target domain or task. While the discrepancy between source and target domains in TL-aided SHM has been extensively studied, the task similarity
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3D sound radiation reconstruction from camera measurements Mech. Syst. Signal Process. (IF 7.9) Pub Date : 2025-02-01 Sofia Baldini, Gianluca Guernieri, Domen Gorjup, Paolo Gardonio, Janko Slavi?, Roberto Rinaldo
In general, the measurement of the sound radiation field by machinery and partitions requires time-consuming tests, which should be carried out in specially dedicated anechoic/reverberant facilities with calibrated sensors and complex acquisition and post processing equipment. This article introduces a two-step method for the identification from optical measurements of the free-field sound radiation
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Periodic sparsity envelope spectrum: An advanced spectral quantity for passive acoustic detection of underwater propeller based on prior information of candidate frequencies Mech. Syst. Signal Process. (IF 7.9) Pub Date : 2025-02-01 Weiqi Tong, Chenheng Lin, Kelin Wu, Linlin Cao, Rui Wu, Dazhuan Wu
The propeller noise is the primary source of radiated noise from surface ships and submarines. Demodulation techniques such as Detection of Envelope Modulation On Noise (DEMON), narrowband demodulation, and cyclostationary analysis can be used to analyze this noise. However, capturing the characteristic modulation frequencies within the envelope spectrum can be challenging due to far-field effects