Abstract
To solve the joint-angle drift problem of redundant robot arms, this paper presents two kinds of repetitive motion planning (RMP) schemes (i.e., the velocity-level RMP scheme and the acceleration-level RMP scheme). Such two kinds of different-level RMP schemes can be reformulated as quadratic programming (QP) problems subject to equality and bound constraints. In addition, since the two kinds of RMP schemes solve the joint-angle drift problem at different levels, the link and comparison between the velocity-level and the acceleration-level RMP schemes are investigated in this paper. In order to compare the two kinds of RMP schemes, PA10 robot arm is tested to perform two different types of path-tracking tasks (i.e., the triangular path and the rhombic path) by employing velocity-level and acceleration-level RMP schemes. Computer-simulation results demonstrate the superiority of the acceleration-level RMP scheme, as compared with the velocity-level RMP scheme.
Published Version
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