A5071729507- Structural Health Monitoring Techniques
- Aeroelasticity and Vibration Control
- Probabilistic and Robust Engineering Design
- Composite Structure Analysis and Optimization
- Structural Analysis and Optimization
- Vibration and Dynamic Analysis
- Magnetic Bearings and Levitation Dynamics
- Tribology and Lubrication Engineering
- Vibration Control and Rheological Fluids
- Innovative Energy Harvesting Technologies
- Ultrasonics and Acoustic Wave Propagation
- Bladed Disk Vibration Dynamics
- Structural Engineering and Vibration Analysis
- Biomimetic flight and propulsion mechanisms
- Acoustic Wave Phenomena Research
- Topology Optimization in Engineering
- Non-Destructive Testing Techniques
- Gear and Bearing Dynamics Analysis
- Dynamics and Control of Mechanical Systems
- Hydraulic and Pneumatic Systems
- Fluid Dynamics and Vibration Analysis
- Seismic Performance and Analysis
- Nonlocal and gradient elasticity in micro/nano structures
- Energy Harvesting in Wireless Networks
- Optical measurement and interference techniques
Swansea University
2016-2025
Faculty (United Kingdom)
2024
Beihang University
2022
BLDE (Deemed to be University)
2020
Lublin University of Technology
2020
University of Bristol
2002-2016
Gower College Swansea
2016
Nanjing University of Aeronautics and Astronautics
2014
Pallium India
2012-2013
Virginia Tech
2011
This brief investigates the finite-time control problem associated with attitude stabilization of a rigid spacecraft subject to external disturbance, actuator faults, and input saturation. More specifically, novel fixed-time sliding mode surface is developed, settling time defined shown be independent initial conditions system. Then, controller derived guarantee that closed-loop system stable in sense concept. The actuator-magnitude constraints are rigorously enforced converges equilibrium...
A common energy harvesting device uses a piezoelectric patch on cantilever beam with tip mass. The usual configuration exploits the linear resonance of system; this works well for harmonic excitation and when natural frequency is accurately tuned to frequency. new proposed, consisting mass that mounted vertically excited in transverse direction at its base. This highly non-linear two potential wells large masses, buckled. system dynamics may include multiple solutions jumps between wells,...
Energy harvesting for the purpose of powering low power electronic sensor systems has received explosive attention in last few years. Most works using deterministic approaches focusing on piezoelectric effect to harvest ambient vibration energy have concentrated cantilever beams at resonance harmonic excitation. Here, a stochastic approach, we focus stack configuration and broadband energy, more practically available source. It is assumed that base excitation stationary Gaussian white noise,...
This letter considers a nonlinear piezomagnetoelastic energy harvester driven by stationary Gaussian white noise. The increase in the generated this device has been demonstrated for harmonic excitation with slowly varying frequency simulation and validated experiment. paper simulated response of model to random base shows that system exhibits stochastic resonance. If variance were known then may be optimized maximize power harvested, even under excitation.
There are a number of approaches to the modeling cracks in beam structures reported literature, that fall into three main categories; local stiffness reduction, discrete spring models, and complex models two or dimensions. This paper compares different crack modeling, demonstrates for structural health monitoring using low frequency vibration, simple flexibility based on elements adequate. also addresses effect excitation breathing cracks, where is bilinear, depending whether open closed....
This paper investigates the fixed-time fault-tolerant control problem of spacecraft rendezvous and docking with a freely tumbling target in presence external disturbance thruster faults. More specifically, based on attitude spacecraft, line-of-sight coordinate frame is defined first, dynamical equations relative to are derived describe position (not six degrees freedom). Then two controllers proposed guarantee that closed-loop system stable finite time sense concept, even simultaneous...