文献类型：期刊文献

英文题名：Coordinated motion planning in a double-sided tools system with surface uniformity requirements

作者：Zhang, Kaiming[1];Liu, Yixin[1];Yao, Shulei[1];Liu, Shuang[1];Zhang, Xiancheng[1];Tu, Shantung[1]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

年份：2021

卷号：70

起止页码：470

外文期刊名：JOURNAL OF MANUFACTURING PROCESSES

收录：;EI(收录号：20213710890681);WOS:【SCI-EXPANDED(收录号:WOS:000696728400001)】；

基金：This work was sponsored by the National Natural Science Foundation of China (No. 51725503 and No. 51975214) and the National Key Research and Devel-opment Program (2018YFC1902405) .

语种：英文

外文关键词：Coordination; Motion planning; Surface uniformity; Double-sided tools system

摘要：Double-sided tools system is a promising design to counteract the forces caused by tools, and has become a practical way to machine thin-walled parts with the twisted structure. However, it is still difficult to obtain uniform machining effects on the part surfaces. This paper proposes a coordinated motion planning method for coordinating two tools in the double-sided tools system. The tools are devoted to guaranteeing the uniform surface quality while meeting the constraints about tools' velocity, tools' inclination and the system structure. At first, a velocity-dependent model is presented to describe the two tools' motions along the predefined paths. Then, the motion-planning problem of two tools is formulated as a constrained velocity-optimization problem, and the genetic algorithm is proposed to achieve the optimization target of the surface uniformity. Finally, experiments are performed on a real blade in a self-developed double-sided ultrasonic surface rolling process machine tool. The results demonstrate that the proposed coordinated motion planning method can effectively improve the surface uniformity in the double-sided tools system.