A5076996516- Magnetic Bearings and Levitation Dynamics
- Tribology and Lubrication Engineering
- Vibration and Dynamic Analysis
- Bladed Disk Vibration Dynamics
- Aerogels and thermal insulation
- Electromagnetic Launch and Propulsion Technology
- Surface Modification and Superhydrophobicity
- Thermal properties of materials
- Dynamics and Control of Mechanical Systems
- Fault Detection and Control Systems
- Composite Structure Analysis and Optimization
- Metal and Thin Film Mechanics
- Advanced ceramic materials synthesis
- Fluid Dynamics and Vibration Analysis
- Advanced Sensor and Energy Harvesting Materials
- Electrohydrodynamics and Fluid Dynamics
- Aerodynamics and Acoustics in Jet Flows
- Quantum Computing Algorithms and Architecture
- Fatigue and fracture mechanics
- Structural Analysis and Optimization
- Aerodynamics and Fluid Dynamics Research
- Adhesion, Friction, and Surface Interactions
- Metaheuristic Optimization Algorithms Research
- Surface and Thin Film Phenomena
- Industrial Technology and Control Systems
Yangzhou University
2019-2024
National University of Singapore
2023-2024
Northeastern University
2013-2014
A bladed thin-walled rotor with magnetic bearings in gas turbines has minimal wear to improve the service life. Especially, system can actively suppress vibrations. Yet, thermal–elastic–magnetic coupling-induced rubbing features of a are not clear, and blade behaviors induced by high temperatures always occur this kind rotor. This paper establishes new model distributed electromagnetic actuators reduce thermoelastic vibrations develops solution approach for obtaining characteristics The is...
Abstract：The electromagnetic bearing has the advantages of no friction and wear, long life oil pollution, wide application prospects.Aiming at non-linearity, high-dimensional characteristics, load uncertainty large-scale variation magnetic suspension rotor power system, prototype model system is established.Based on inverse non-linear decoupling pseudo-linearization carried out, cooperative controller pseudo-linearized designed.The closed-loop control based strategy constructed, simulated...
Abstract The bladed rotor is an important part in turbine machines. Timely detection of its blade rubbing fault may avoid serious accidents. This paper developed a rub-impact identification approach for the based on chaotic features such as average period, time delay, embedded dimension, and largest Lyapunov exponent. A dynamic analytical model rotating variable thickness with established. It verified that could obtain relationship between behaviors blade. Through nonlinear characteristic...
In a hypersonic wind tunnel, the motion of electric putter Y mechanism needs to be controlled synchronously, and accuracy or control performance system's synchronous directly affects running quality tunnel. Based on deviation coupling output displacement, paper puts forward system model mechanism, establishes dynamic mechanical system, current ring, speed ring position mechanism. A closed-loop three-ring is designed, simulation carried out. The results show that has fast response speed, high...
High speed motor with magnetic bearings has been developing due to its advantages of small size, high power density, no mechanical wear and low maintenance cost. In order reduce vibrations, dynamic characteristics the flexible rotor system for operation rotation 200000r/min are investigated. Results show that may pass through some critical speeds it is accurate consider shaft as a rotor. Meanwhile, necessary take measures amplitude resonance region such increasing damping. The increases...
In some products or systems, the redundant parts, components subsystems must be configured for their high reliability, in addition to reliability of parts and components. But systems would pay more "cost" resources such as cost, weight volume, than those without redundancy subsystems. Therefore, study optimization system carried out. This paper presents several models basic component structures based on block diagram. According diagram model series-parallel subsystems, a mathematical its...
The lack of durability in superhydrophobic coatings has restricted the practical applications fields marine and construction. In this paper, composite EP+PDMS SiO 2 nanoparticles were prepared by using room-temperature liquid spraying laser curing methods. effects powers on microstructure, hydrophobicity, terms corrosion friction researched. results demonstrate that there micropores aggregated surface coatings. had growth structure through coating. With increase powers, gathered...