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Singularity and workspace analysis of three isoconstrained parallel manipulators with schoenflies motion

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Abstract

This paper presents the analysis of three parallel manipulators with Schoenflies-motion. Each parallel manipulator possesses two limbs in structure and the end-effector has three DOFs (degree of freedom) in the translational motion and one DOF in rotational motion about a given direction axis with respect to the world coordinate system. The three isoconstrained parallel manipulators have the structures denoted as C uu UwHw-//-C vv UwHw, CuR uu Uhw-//-CvR vv Uhw and CuPuUhw-//-CvPvUhw. The kinematic equations are first introduced for each manipulator. Then, Jacobian matrix, singularity, workspace, and performance index for each mechanism are subsequently derived and analysed for the first time. The results can be helpful for the engineers to evaluate such kind of parallel robots for possible application in industry where pick-and-place motion is required.

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  1. Department of Mechanical Engineering, Taiwan University, Taipei, China

    Po-Chih Lee & Jyh-Jone Lee

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  1. Po-Chih Lee
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  2. Jyh-Jone Lee
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Correspondence to Jyh-Jone Lee.

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Lee, PC., Lee, JJ. Singularity and workspace analysis of three isoconstrained parallel manipulators with schoenflies motion. Front. Mech. Eng. 7, 163–187 (2012). https://doi.org/10.1007/s11465-012-0324-5

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  • DOI: https://doi.org/10.1007/s11465-012-0324-5

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