东北大学学报:自然科学版 ›› 2018, Vol. 39 ›› Issue (11): 1636-1641.DOI: 10.12068/j.issn.1005-3026.2018.11.023

• 机械工程 • 上一篇    下一篇

基于改进粒子群算法的取件机械手轨迹综合优化设计

黄裘俊1, 张凯2, 宋锦春1, 于忠亮1   

  1. (1. 东北大学 机械工程与自动化学院, 辽宁 沈阳110819; 2. 沈阳化工大学 装备可靠性研究所, 辽宁 沈阳110142)
  • 收稿日期:2017-08-16 修回日期:2017-08-16 出版日期:2018-11-15 发布日期:2018-11-09
  • 通讯作者: 黄裘俊
  • 作者简介:黄裘俊(1989-),男,福建三明人,东北大学博士研究生; 宋锦春(1957-),男,辽宁沈阳人,东北大学教授,博士生导师.冯明杰(1971-), 男, 河南禹州人, 东北大学副教授; 王恩刚(1962-), 男, 辽宁沈阳人, 东北大学教授,博士生导师.
  • 基金资助:
    国家自然科学基金青年基金资助项目(51605085).

Path Synthesis Optimal Design of Pick-Up Manipulator Based on Modified Particle Swarm Optimization

HUANG Qiu-jun1, ZHANG Kai2, SONG Jin-chun1, YU Zhong-liang1   

  1. 1. School of Mechanical Engineer & Automation, Northeastern University, Shenyang 110819, China; 2. Institute of Equipment Reliability, Shenyang University of Chemical Technology, Shenyang 110142, China.
  • Received:2017-08-16 Revised:2017-08-16 Online:2018-11-15 Published:2018-11-09
  • Contact: ZHANG Kai
  • About author:-
  • Supported by:
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摘要: 为优化取件机械手进入模具时的运动轨迹,提出了二次拉格朗日插值粒子群算法(QLIPSO),此算法引入了二次拉格朗日插值局部搜索的方法,能够扩大搜索空间,避免局部收敛发生早熟,有效提高收敛精度.对比研究了典型粒子群算法(PSO)和几种改进型粒子群算法对取件机械手结构优化的设计效果.数值实验表明,QLIPSO算法具有最快的收敛速度,并且能够获得更好的优化结果.经该方法优化设计后,机械手在进入模具阶段的运动轨迹,与未优化前相比,直线度误差减少了98.06%,说明该方法能够有效优化取件机械手,获得更精确的运动轨迹.

关键词: 取件机械手, 平面四杆机构, 结构优化, 轨迹综合, 粒子群算法

Abstract: To optimize the motion curve for the pick-up manipulator when going into the mold, an novel method called quadratic Lagrange interpolation particle swarm optimization(QLIPSO)algorithm which can expand the search space, prevent premature convergence, and improve the convergence accuracy effectively is proposed. To verify the effectiveness of QLIPSO, four modified PSO algorithms are compared to synthesize the four-bar linkage of the manipulator. The numerical simulation results show that a better fitness value can be obtained with the QLIPSO algorithm. The linearity error of the curve of the manipulator, optimized by the proposed method, is decreased by 98.06% comparing with that non-optimized. It indicates that the proposed method can effectively improve the motion performance of the manipulator.

Key words: pick-up manipulator, planar four-bar linkage, structural optimization, path synthesis, particle swarm optimization(PSO)

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