A5003129635- 3D Shape Modeling and Analysis
- Advanced Numerical Analysis Techniques
- Robotic Path Planning Algorithms
- Manufacturing Process and Optimization
- Advanced machining processes and optimization
- Semiconductor Lasers and Optical Devices
- Real-time simulation and control systems
- Spacecraft Dynamics and Control
- Advanced Measurement and Metrology Techniques
- Computer Graphics and Visualization Techniques
- Guidance and Control Systems
- Optical measurement and interference techniques
- Autonomous Vehicle Technology and Safety
- Photonic and Optical Devices
- Analytical Chemistry and Sensors
Lingnan Normal University
2024
Shanghai Jiao Tong University
2023
Nanjing University of Aeronautics and Astronautics
2013-2020
Abstract Identification and compensation of geometric errors in the machine tool are widely performed to increase machining accuracy. Periodic verification errors, as introduced ISO 230-2, helps monitor accuracy during continued manufacturing operation detect degradation early on. While interferometry-based error identification techniques commonly applied, on-machine measurement (OMM), with its increasing availability tools, can be used identify an alternative traditional techniques. As also...
Trajectory optimization problem for hypersonic vehicles has long been recognized as a difficult problem. This paper brings control constraints into the trajectory to make optimal meet requirements of performance. The strong nonlinear characteristic ascent phase aerodynamics makes be solved by theory. A algorithm based on improved pigeon-inspired (PIO) is proposed solve complex under multiple constraints. To overcome obstacle premature convergence and deceptiveness, evolutionary strategy...
Sweep is useful in CAD modeling process. But its precision hard to control when we use discrete method. In this paper, the sweep surface constructed by projected-based approach. Vector and distance methods are proposed detect local self-intersection of surface. Beside these, it gives corner improve precision. Finally, discuss factors that influence
An improved pigeon-inspired optimization (PIO) algorithm for global numerical is proposed to perceive deceptiveness and preserve diversity. In the algorithm, quantum evolution introduced into PIO solve problem that prone fall local optimal. The applied hypersonic vehicle trajectory under multiple constraints. simulation results show performance of optimal ascent obtained by improved, which also proves effectiveness algorithm.
Offset in computer aided design and manufacturing (CAD/CAM) is a kind of important geometric operation, such as rapid prototyping technology, NC machining, the collision detection, etc. When offset distance d greater than minimum radius curvature on original surface, or part between parts curved surface pieces, it causes self-intersection. Self-intersection makes two models smaller r , leading to model local intersection distortion. This paper proposes method based light projection algorithm...
An algorithm is proposed to weave curve network on the multi-line contour, which refers analysis and design of algorithms in computational geometry uses convex hull construct surface contour. First all, with incremental algorithm, a point set, composed first last feature line segment, constructed. Then, by using mapping from fitting surface, an initial formed meets rules two-dimensional manifold. At last, manifold curves acquired modifying connection In conclusion, this paper put forward...