New repetitive motion planning scheme with cube end-effector planning precision for redundant robotic manipulators. Issue 4 (31st August 2021)

• Record Type: Journal Article
• Authors: Shen, Limin; Wen, Yuanmei
• Is Part Of: Robotica. Volume 40:Issue 4(2022)
• Page Start: 1233
• Page End: 1254
• Publication Date: 2021-08-31
• Subjects: Repetitive motion planning -- pseudoinverse formulation -- theoretical analysis -- redundant robotic manipulators -- joint constraint; Robots -- Periodicals; 629.89205
• DOI: 10.1017/S0263574721001119
• Languages: English
• ISSNs: 0263-5747

Abstract

Abstract: Repetitive motion planning (RMP) is important in operating redundant robotic manipulators. In this paper, a new RMP scheme that is based on the pseudoinverse formulation is proposed for redundant robotic manipulators. Such a scheme is derived from the discretization of an existing RMP scheme by utilizing the difference formula. Then, theoretical analysis and results are presented to show the characteristic of the proposed RMP scheme. That is, this scheme possesses the characteristic of cube pattern in the end-effector planning precision. The proposed RMP scheme is further extended and studied for redundant robotic manipulators under joint constraint. Based on a four-link robotic manipulator, simulation results substantiate the effectiveness and superiority of the proposed RMP scheme and its extended one.