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柔順關節(jié)并聯(lián)機器人動力學建模與控制研究
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國家自然科學基金資助項目(51175006)、北京市教委青年拔尖人才培育計劃資助項目、北京工業(yè)大學青年導師國際化能力發(fā)展計劃資助項目(2014-03)和北京工業(yè)大學第12屆研究生科技基金資助項目(ykj-2013-10018)


Dynamics and Control of Parallel Robot with Compliant Joints
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    摘要:

    對具有大范圍運動特性的柔順關節(jié)并聯(lián)機器人開展了動力學建模、特性分析、控制策略設計及動態(tài)性能分析等研究?;趥蝿傮w法,研究柔順關節(jié)特性,建立含大變形柔順關節(jié)的系統(tǒng)模型,應用拉格朗日方法建立了系統(tǒng)動力學方程。為補償柔順關節(jié)引起的系統(tǒng)振動、未建模動態(tài)以及慣性參數(shù)攝動造成的模型誤差,設計趨近律滑??刂撇呗圆⒆C明了其穩(wěn)定性。仿真結果驗證了動力學模型和控制策略的有效性。

    Abstract:

    The researches on dynamic modeling, characteristic analysis, control strategy design and dynamic performance analysis for the parallel robot with compliant joints, which had the property of large range motion, were carried out. Based on pseudo rigid body model, the characteristics of compliant joints were investigated and system model with large deformation compliant joints was set up. The dynamic equation was obtained based on Lagrange method. A reaching law sliding mode control strategy was designed to eliminate the vibration and the unmodelled dynamics caused by compliant joints and the model error made by inertia parameter perturbation. And the stability of control strategy was verified. Simulation results showed that dynamic model and control strategy were effective.

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田 浩,余躍慶.柔順關節(jié)并聯(lián)機器人動力學建模與控制研究[J].農(nóng)業(yè)機械學報,2014,45(5):278-283. Tian Hao, Y u Yueqing. Dynamics and Control of Parallel Robot with Compliant Joints[J]. Transactions of the Chinese Society for Agricultural Machinery,2014,45(5):278-283.

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  • 收稿日期:2013-12-24
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  • 在線發(fā)布日期: 2014-05-10
  • 出版日期: 2014-05-10