A5064453202- Vibration Control and Rheological Fluids
- Shape Memory Alloy Transformations
- Optical measurement and interference techniques
- Nonlocal and gradient elasticity in micro/nano structures
- Dielectric materials and actuators
- Image Enhancement Techniques
- Geophysics and Sensor Technology
- Force Microscopy Techniques and Applications
- Infrared Target Detection Methodologies
- Mechanical stress and fatigue analysis
- Infrared Thermography in Medicine
- Vibration and Dynamic Analysis
- Advanced Image Processing Techniques
- Calibration and Measurement Techniques
- Composite Structure Analysis and Optimization
- Satellite Communication Systems
- Magnetic Bearings and Levitation Dynamics
- Fluid Dynamics and Vibration Analysis
- Piezoelectric Actuators and Control
- Structural Response to Dynamic Loads
- Structural Analysis and Optimization
Nanjing University of Aeronautics and Astronautics
2021-2023
Shanghai Micro Satellite Engineering Center
2020-2022
China Aerospace Science and Technology Corporation
2021-2022
Abstract This article evaluates the wave velocity of a leptadenia pyrotechnica rheological elastomer (LPRE) microbeam surrounded by micro piezoelectric and porosity functionally graded materials' (FGMs) layers. Different models graphene nano plates (GPLs) for reinforcing face sheet are assumed adopting Halpin–Tsai modified micromechanics theory to obtain Poisson's ratio Young modulus smart layer. The material properties whole system as viscoelastic state hypothesized using Kelvin–Voigt...
To solve the special requirements of high orbit optical remote sensing-satellite for thermal deformation platform, test and measurement scheme satellite platform is designed. Through comparative analysis results, rationality design structure verified. The results show that maximum A camera mounting surface 57.5', B points to 79.3', which can be used as basis prediction during operation.
In order to alleviate the problems of complex structure and low reliability traditional Shape Memory Alloy (SMA) rotary actuator, a planar vortex actuator (PVA) based on SMA material was proposed directly output torque angular displacement. Based calculation method PVA constitutive model phase transition equation SMA, mechanical is established, pre-tightening torque, temperature, rotation angle are obtained. The relationship expression between tests has verified model. results show that...
Flywheels play a critical role as core components in satellite attitude control systems. However, their high-speed rotation inevitably generates vibrations that have detrimental impact on the in-orbit imaging capabilities of high-precision remote sensing payloads. This study focuses passive vibration isolation design flywheels. The flywheel-mounted structural plate and flywheel platform are considered whole system (termed plate-isolator system). In this system, is treated an elastomer. By...
Due to the inherent hysteresis characteristics of smart material, positioning accuracy piezo-driven manipulator was always decreased. Especially in multi-degrees-of-freedom (MDOFs) compliant manipulators driven by multismart actuators, cross-coupled among MDOFs decreased such platforms significantly. In this paper, feature identification and coupled compensation a XY investigated. To establish manipulator, modified Bouc–Wen model has been proposed, Genetic Algorithm-based Particle Swarm...
In order to provide an ultraquiet environment for spacecraft payload, a six‐degree‐of‐freedom microvibration isolation device satellite control moment gyro (CMG) is proposed in this paper. The dynamic characteristics of the are analyzed theoretically and experimentally. equations suppression established by using Newton–Euler method. responses numerically solved frequency‐domain under base excitation analyzed. analytical results first verified numerically, two good accordance. experimental...