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冗余鋪絲機械手逆運動學的拓撲流形分析
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國家重點基礎(chǔ)研究發(fā)展計劃(973計劃)項目(2014CB046501)


Topological Manifolds Analysis for Inverse Kinematics of Redundant Fiber Placement Manipulator
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    摘要:

    針對優(yōu)化的梯度投影算法在冗余鋪絲機械手逆運動學求解問題中不一定存在最優(yōu)解的問題,提出了一種拓撲流形算法,。將冗余鋪絲機械手的位形空間看作一個光滑流形,,對耦合的位置逆解和姿態(tài)逆解進行解耦,然后分別針對位置子流形和姿態(tài)子流形進行仿真分析得到其相應(yīng)的仿真拓撲流形,。該方法可以將鋪絲機械手的運動學問題抽象為數(shù)學中的曲面拓撲流形來研究,為鋪絲機械手運動學在流形上分析提供了理論基礎(chǔ),,同時也為后續(xù)鋪絲機械手的最優(yōu)化自運動控制提供了一種新的方法,。最后以飛機S形進氣道為例進行仿真,驗證了所提方法的正確性,。

    Abstract:

    A new topological manifolds method was proposed to solve the inverse kinematics problem of the redundant fiber placement manipulator. It improved the calculation precision compared with the optimized projected gradient method. A structure of smooth topological manifolds was presented by the inverse kinematics solution of redundant fiber placement manipulator, the simulation topological manifolds were obtained when the position sub-manifolds and posture sub-manifolds had a different simulation analysis for the redundant fiber placement manipulator model, it was like the function mapping in the mathematics from the manipulator joints space to the working space of the end effector. The tangent vector described velocity vector for each point on the topological manifolds, the gather of all these tangent vectors were defined as the tangent vector space on the point. The kinematics problems of the redundant fiber placement manipulator were abstracted to mathematically curved surface topological manifolds problem in the new method, it provided a new theoretical basis for manifolds analysis of the redundant fiber placement manipulator. Thus the subsequent optimization of inverse kinematics solutions manifolds problems were obtained by using self-motion curved surface manifolds theory in the mathematics, it provided a new method for improving the subsequent optimization self-motion control of the redundant fiber placement manipulator. The whole operating performance of the redundant fiber placement manipulator was improved greatly, and it would play a great role in promoting the quantity in the working fiber placement. The new method was verified by simulation of plane S shaped inlet.

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徐朋,程錦翔,應(yīng)明峰,李奎.冗余鋪絲機械手逆運動學的拓撲流形分析[J].農(nóng)業(yè)機械學報,2017,48(6):387-391,406. XU Peng, CHENG Jinxiang, YING Mingfeng, LI Kui. Topological Manifolds Analysis for Inverse Kinematics of Redundant Fiber Placement Manipulator[J]. Transactions of the Chinese Society for Agricultural Machinery,2017,48(6):387-391,406.

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  • 收稿日期:2016-09-20
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  • 在線發(fā)布日期: 2016-10-19
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