A5112486105- Structural Analysis and Optimization
- Robotic Mechanisms and Dynamics
- Dynamics and Control of Mechanical Systems
- Space Satellite Systems and Control
- Modular Robots and Swarm Intelligence
- Planetary Science and Exploration
- Piezoelectric Actuators and Control
- Vibration Control and Rheological Fluids
- Robotic Path Planning Algorithms
- Power Systems and Renewable Energy
- Environmental Changes in China
- Robotic Locomotion and Control
- Smart Grid and Power Systems
- Power Systems and Technologies
- Advanced Manufacturing and Logistics Optimization
- Hydraulic and Pneumatic Systems
- Space Science and Extraterrestrial Life
- Spacecraft Design and Technology
Jiujiang University
2020-2022
Nanjing University of Aeronautics and Astronautics
2018-2020
Weighted coefficient method to establish a time-jerk optimal trajectory planning model within joint space scheme using cubic splines, which considering the velocity, acceleration, secondary acceleration constraints according heavy load and high-speed handling characteristics conditions for electrolytic copper transport robot.
Existing cylindrical deployable structures have poor controllability of deployment or weak bearing capacity. In order to satisfy the application needs in space industry, a net-shell mechanism is established this article. The proposed has regular cuboid shape folded state and truss structure deployed state, it can fit surface, parabolic sine surface so on. Furthermore, based on reciprocal screw theory synthesis theory, mobility whole motion cycle analysed by equivalent model method. Results...
The effects on deployment accuracy of joint clearances and forces acting the deployable mechanism are investigated. “A virtual massless link” is used to describe clearance in free state. Aiming at following problems multi-loop linkages mechanical system such as loop constraints coupling complicated topology structure, geometric relationships deploying error equations provided based Denavit-Hartenberg matrix by splitting linkage into 3 single-loop linkages. In addition, with consideration...
An accuracy analysis approach – mosaic equivalence which is based on the principle of approximate structure substitution, to a large complex spatial mechanism with three-dimensional (3D) paired bearings support joint (PBS-joint) clearance presented effectively estimate precision parabolic space-borne antenna. The suggests when all PBS-joints equipped Metric 628/6 in standard clearance, surface can obtain relatively high 99.73% probability that root mean square (RMS) was kept (0.3275, 0.7673)...
Abstract To enhance the configurability of photovoltaic energy storage within distribution network systems and foster synchronized development power sources loads, a source-load coordinated approach for optimal configuration in networks is introduced. An alternative multi-objective framework allocation capacity formulated, which goal maximum economic benefit storage, minimum loss source-network load coordination. The constraints system’s flow, charging discharging capabilities, an optimized...
This paper studies the optimal trajectory optimization of a space robot for maintenance operations. A new planning algorithm is proposed to solve problems low efficiency and poor stationarity robots on-orbit. Firstly, considering constraint conditions such as speed, acceleration secondary each joint robots, cubic spline curve used plan in space. Then, comprehensive model time-jerk established, problem described nonlinear constrained problem. Finally, hybrid by combining genetic particle...
A time-jerk optimal deployment trajectory planning method of a large cable-strut deployable parabolic cylindrical antenna is proposed. First, in order to decouple the complex multi-loop mechanisms, basic mechanism support structure split into three single-loop linkages, and geometric constraint model established based on Denavit–Hartenberg method. Then, kinematic with jerk characteristics obtained by differentiation. By considering motion element, also matrix coding synthesis theory. Second,...
When using suspension method to simulate the microgravity environment, part of hanger forces are used offset influence gravitational field on deployable structure, while other produces additional that affect driving and precision structure. In order reduce adverse effect forces, avoid construction complex finite element theoretical model, an optimization based adaptive genetic algorithm with MATLAB Nastran co-simulation is proposed. Then, optimized, structure deformation has been reduced...
With the rapid expansion of urbanization, water environment problems have always been an important problem for urban residents, so efficient and management measures are a major means to solve problems. A coupled water-land integrated simulation prediction model Storm Water Management Model (SWMM) Environmental Fluid Dynamics Code (EFDC) is constructed analysis diffusion patterns TN, TP, COD NH3-N in bodies under different rainfall scenarios. The proposed used classify into light, moderate...