标题：Trajectory Control in Automated Welding of Tubular Joints
作者：Tian, Xincheng; Lu, Yan
作者机构：[Tian, Xincheng] Shandong Univ, Sch Control Sci & Engn, Jinan 250061, Peoples R China.; [Lu, Yan] Zhejiang Univ, Dept Control Sci & Engn, Hangzhou, 更多
会议名称：International Conference on Advanced Mechanical Engineering (AME 2010)
会议日期：SEP 04-05, 2010
来源：ADVANCED MECHANICAL ENGINEERING, PTS 1 AND 2
关键词：Trajectory Control; Automated Welding; Saddle Curve; Direct; Interpolation
摘要：A saddle curve is formed by intersection of two tubes. The trajectory control of saddle curve is usually carried out through approximating the curve as segments of straight line/circular arc for CNC interpolation. Based on the principle of space analytic geometry, this paper proposes a new trajectory control approach to directly interpolate the saddle curve for automated welding/cutting system. Simulation of the direct interpolation algorithm of saddle curve has been carried out to verify the effectiveness of the proposed algorithm. It also demonstrates that the interpolation error is well within the accuracy requirements and the proposed algorithm is potentially useful for the cutting/welding of saddle curve of tubular joints.