五轴数控加工中的轨迹优化及误差补偿

Trajectory Optimization and Error Compensation in Five-Axis Machining

报告人: Dr. Zhang Ke, Hong Kong University of Science and Technology

报告时间: 2015-03-26 15:00

报告地点: 西主楼3区102

联系人: 肖曦

Abstract: To maintain a desired accuracy in high speed machining, the reference motion commands must be smooth enough in order to avoid exciting the structural dynamics. Furthermore, the dimensional accuracy of the part is affected mainly by the tool positioning errors. Therefore, smooth trajectory generation and accurate motion control are the two essential components for achieving contouring accuracy in multi-axis machining. In this talk, novel trajectory optimization and error compensation algorithms developed for five-axis CNC machine tools will be presented.

Biography: Ke Zhang is now working at the Hong Kong University of Science and Technology as a post-doctoral fellow since August 2013. He received his PhD in Applied Mathematics in July 2013 from the Chinese Academy of Sciences (Beijing). His PhD research was on "Optimal Trajectory Generation and Error Control in Multi-Axis CNC Machining". He was a one-year visiting student in the Department of Mechanical Engineering at the University of British Columbia (Canada), working on the development of virtual CNC systems.