Minimum Time Feed-rate Optimization along Prede ned Toolpath with Acceleration Constraints on Each Axis
A feed-rate optimization approach is proposed in this paper for generating minimum time feed-rate along prede ned toolpath for Cartesian computer numerical control (CNC)machines with acceleration constraints on each axis.By properly de n-ing new states,the original minimum time feed-rate optimization (MTFO)problem is formulated as a general time-independent optimal control problem.A control vector parameterization (CVP)method is applied to convert the optimal control problem into a nonlinear programming (NLP)problem which can be solved conveniently and effectively.The second derivatives of the path parameter with respect to time (pseudo-acceleration)act as optimization variables.The sequential quadratic programming (SQP) method is used to solve the NLP problem and obtain the numerical solution.A simple example and a real manufacturing test are performed to verify the effectiveness of the approach.
ZHANG Qiang LI Shurong
College of Information and Control Engineering,China University of Petroleum (East China),Dongying 257061,P.R.China
国际会议
The 30th Chinese Control Conference(第三十届中国控制会议)
烟台
英文
1-6
2011-07-01（万方平台首次上网日期，不代表论文的发表时间）