Stay cables are essential components of cable-stayed bridges, and accurate cable force identification is crucial for structural health assessment. However, traditional cable force measuring solutions have inevitably disadvantages, such as limited applicability, low efficiency, and numerous factors affecting accuracy. To address this, a fusion framework for cable force identification is proposed, integrating

This investigation is devoted to an in-depth analysis of the flutter boundary and free vibration characteristics exhibited by a laminated fiber-reinforced magnetorheological elastomer (Fiber-MRE) circular and annular plate. Experimental endeavors are directed towards the extraction of the viscoelastic properties inherent in the MRE substrate. Utilizing the Generalized Maxwell model in conjunction with

Blade fracture is one of the most difficult faults to diagnose in rotating machinery. Most gas turbines can only measure casing vibration rather than directly measuring blade vibration with other sensors, making monitoring and diagnosing such faults more challenging. Research on vibration characteristics and fault diagnosis methods of blade fracture is critical to ensure the safe and reliable operation

Journal of Guidance, Control, and Dynamics, Ahead of Print.

Current research on anomaly detection in industrial environments has advanced significantly in single robot systems but faces challenges with large-scale, regionally distributed robot clusters. These systems contend with complex inter-machine interactions and regional dynamics, as well as distinct differences in robot data characteristics, limiting the effectiveness of existing methods in terms of

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

The ring periodic structures (RPSs) are normally subjected to external forces in practice. In contrast to previous studies on how the external forces affect the forced vibration, this work examines the effects of the external forces on the natural frequency splitting. The studied RPS consists of a thin ring subjected to external forces and stiffnesses, which are uniformly distributed along its inner

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

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

High-static-low-dynamic stiffness (HSLDS) isolators based on negative stiffness mechanisms (NSMs) have been used widely for low-frequency vibration isolation. However, most existing NSMs are not adjustable and have nonlinear properties, which limits the isolation performance to some extent. This paper proposes an electromagnetic mechanism (EM) with a new magnetic circuit design and coil configuration

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

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

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

The development of efficient solar aircraft necessitates advanced thermal management and energy utilization. Carbon nanotubes in single-walled (SWCNTs) and multi-walled (MWCNTs) form offer promising solutions due to their exceptional thermal and electrical properties. The stability and performance of CNT-based nanofluids, particularly in dynamic flight conditions are crucial. Factors such as solar

Space flight safety is a multidisciplinary topic. Regular symposia are being held discussing acute issues. The eleventh Space Flights Safety Symposium discussed the problems of protective measures for space structures and the future strategies aimed at conducting safe and peaceful Space missions. The following topics were under discussion: development of high speed aviation transport, protection of

Journal of Guidance, Control, and Dynamics, Ahead of Print.

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

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

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)

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