计算机集成制造系统 ›› 2014, Vol. 20 ›› Issue (7): 1709-1715.DOI: 10.13196/j.cims.2014.07.chenxiulong.1709.7.20140721

• 产品创新开发技术 • 上一篇    下一篇

基于牛顿—欧拉法的4-UPS-RPS机构刚体动力学分析

陈修龙,王成硕   

  1. 山东科技大学机械电子工程学院
  • 出版日期:2014-07-30 发布日期:2014-07-30
  • 基金资助:
    国家自然科学基金资助项目(51005138);山东省优秀中青年科学家科研奖励基金资助项目(BS2012ZZ008);山东科技大学杰出青年基金资助项目(2011KYJQ102);江苏省数字化制造技术重点建设实验室开放课题资助项目(HGDML-1104);山东科技大学研究生科技创新基金资助项目(YC140315)。

Rigid-body dynamics analysis of 4-UPS-RPS mechanism based on Newton-Euler approach

  • Online:2014-07-30 Published:2014-07-30
  • Supported by:
    Project supported by the National Natural Science Foundation,China(No.51005138),the Shandong Provincial Young Scientists Award Fund,China(No.BS2012ZZ008),the Science Foundation of Shandong University of Science and Technology,China(No.2011KYJQ102), the Jiangsu Key Laboratory of Digital Manufacturing Technology,China(No.HGDML-1104),and the Postgraduate Innovation Fund of SDUST,China(No.YC140315).

摘要: 为了研究三维转动两维移动4-UPS-RPS空间五自由度并联机构的刚体动力学问题,采用牛顿—欧拉法和虚拟样机仿真相结合的刚体动力学分析方法,分析了该并联机构的运动学,包括位置反解、并联机构驱动杆线速度和角速度,以及并联机构摆动杆和伸缩杆质心处线速度和角加速度;采用牛顿—欧拉法建立了4-UPS-RPS空间并联机构的刚体动力学模型,利用MATLAB对空载和有载荷条件下的算例进行了理论计算,分别求解出机构五个驱动杆的驱动力,利用ADAMS进行了机构虚拟样机的动力学仿真分析,验证了理论计算的正确性。该研究为4-UPS-RPS空间五自由度并联机构的设计制造和控制奠定了理论基础。

关键词: 五自由度, 并联机构, 牛顿&mdash, 欧拉法, 刚体动力学分析

Abstract: To realize the rigid-body dynamics analysis of 4-UPS-RPS 5-DOF spatial parallel mechanism,the Newton-Euler approach and the virtual prototype simulation method were adopted.The kinematics problems of parallel mechanism,which consisted of position inverse solution,linear velocity and angular velocity of driving limbs,barycenter linear velocity and angular velocity of swing arm and telescopic rod were analyzed.The rigid-body dynamics equation of 4-UPS-RPS parallel mechanism was derived by Newton-Euler approach,and Matlab was used to calculate the example theoretically under no load and on load condition.The driving forces of five driving limbs were obtained respectively,the dynamic simulation was analyzed by ADAMS,and the correctness of the rigid-body dynamics analysis was verified.The research could provide theoretical basis for design,manufacture and control of 4-UPS-RPS spatial parallel mechanism.

Key words: five-degree-of-freedom, parallel mechanism, newton-euler approach, rigid-body dynamics analysis

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