A5049266297- Vibration Control and Rheological Fluids
- Structural Health Monitoring Techniques
- Structural Engineering and Vibration Analysis
- Seismic Performance and Analysis
- Innovative Energy Harvesting Technologies
- Railway Engineering and Dynamics
- Vibration and Dynamic Analysis
- Structural Load-Bearing Analysis
- Ultrasonics and Acoustic Wave Propagation
- Energy Harvesting in Wireless Networks
- Mechanical stress and fatigue analysis
- Magnetic Bearings and Levitation Dynamics
- Infrastructure Maintenance and Monitoring
- Advanced Fiber Optic Sensors
- Advanced Sensor and Energy Harvesting Materials
- Structural Behavior of Reinforced Concrete
- Dynamics and Control of Mechanical Systems
- Structural Analysis and Optimization
- Probabilistic and Robust Engineering Design
- Geophysics and Sensor Technology
- Fatigue and fracture mechanics
- Acoustic Wave Phenomena Research
- High Entropy Alloys Studies
- Dielectric materials and actuators
- Advanced materials and composites
Huazhong University of Science and Technology
2016-2024
National University of Defense Technology
2024
Hong Kong Polytechnic University
1997-2017
National University of Singapore
2012-2016
Xiamen University
2008-2012
Dalian University of Technology
2012
Energy harvesting from ambient vibration is an emerging and promising solution to the power supply problem associated with autonomous sensors. This article proposes a novel strategy of damping energy control devices. A system, termed electromagnetic damper cum harvester, employed fulfill both functions. Electromagnetic harvester essentially device connected specially designed circuit, which buck–boost converter operating in discontinuous conduction mode. The circuit can achieve satisfactory...
This study investigates a novel energy regenerative tuned mass damper (TMD) with dual functions—vibration control and harvesting—in high-rise building. The TMD consists of pendulum-type TMD, an electromagnetic damper, energy-harvesting circuit. A simple optimal design method for is proposed, in which fixed duty-cycle buck-boost converter employed as the circuit to optimize efficiency damping coefficient TMD. organized into two main tasks: (a) characterizing modeling through laboratory...
Flexible bridge stay cables are often vulnerable to problematic vibrations under dynamic excitations. However, from an energy perspective, such excessive denote a green and sustainable source some electronic devices (such as semi-active dampers or wireless sensors) installed on the same cables. This paper presents experimental study novel dual-function system called electromagnetic damper cum harvester (EMDEH). The proposed EMDEH, consisting of device connected energy-harvesting circuit...
An electromagnetic shunt damper (EMSD) is composed of an connected to one or more RLC circuits. Through a theoretical comparison, this paper reveals the similarity and difference between EMSD tuned mass (TMD), both which are resonant-type vibration absorbers. The equivalent mass, stiffness damping coefficient derived based on transfer functions structures with TMD EMSD, circuit capacitance inductance discussed accordingly. optimal parameters in obtained through H∞ optimization. Despite their...
With the extensive studies on energy harvesting via electromagnetic devices in civil or mechanical structures, a novel dual-function device, termed damping and (EMDEH) has been proposed recent years, whose design represents dual-objective optimization problem by considering both vibration control performance. However, an argument whether not is contradictory arisen, based mainly intuition that former tries to suppress magnitude while latter benefits from large amplitude. This paper clarifies...
Energy harvesting is an emerging technique that extracts energy from surrounding environments to power low-power devices. For example, it can potentially provide sustainable for wireless sensing networks (WSNs) or structural control systems in civil engineering applications. This paper presents a comprehensive study on earthquake-induced vibrations, which typically of low frequency, WSNs. A macroscale pendulum-type electromagnetic harvester (MPEH) proposed, analyzed and experimentally...
Long bridge cables are vulnerable to unanticipated large vibrations induced by earthquakes, wind, and traffic loads. The use of various dampers, including inerter dampers (IDs), as an effective approach for the mitigation cable vibration has been extensively studied in recent years. This work presents innovative strategy wherein electromagnetic shunt damper (EMSD) is applied emulate mechanical behavior traditional IDs. proposed EMSD–ID design exploits analogous relationships between...
Base-isolated structures achieve superior seismic performance but with the cost of large deformation base floor, which possibly causes superstructure collapse during severe earthquakes. Hence, it is great interest to develop hybrid isolation systems that can reduce and simultaneously improve superstructure’s performance. Recently, several using inerter-based dampers have emerged; however, nonlinear isolators has rarely been considered in these studies. In this paper, we conduct a stochastic...
On-board monitoring of track irregularities and bridge dynamic characteristics based on vehicle vibration responses provides basic data for the condition assessment high speed railway bridges. However, identification process inevitably introduces estimation uncertainty because measurement noise system parameter uncertainty. Here, in a probability framework, we propose recursive Bayesian Kalman filtering (RBKF) algorithm quantifying natural frequencies. A nonlinear state-space model with was...