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Dynamics analysis and workspace of a novel 4-DoF parallel manipulator with multi-couple constrained wrenches

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Abstract

A novel 4-DoF parallel manipulator with multi-couple constrained wrenches is proposed. Its 3D model is constructed and its characteristics, DoF and two couple-constrained wrenched are analyzed. Its kinematic formulae for solving DoF, the displacement, velocity, acceleration, singularities of moving links are derived and analyzed. Its dynamics formulae for solving the dynamic active forces and the dynamic couple-constrained wrench are derived, and its workspace is constructed. Finally, an analytic example is given to demonstrate the solution of the kinematics and dynamics, and the results of analytical solution are verified using a simulation mechanism. This paper is aimed at laying a solid theoretical and technical foundation of development of the parallel manipulators with multi-couple constrained wrenches.

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Correspondence to Yi Lu.

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Recommended by Associate Editor Hugo Rodrigue

Yi Lu (corresponding author) got his B.S. and M.S. (Engineering) degrees at Northeast Heavy Machinery Institute in Qiqihar, China, and Dr. Sc. Tech. degree 1997 at University of Oulu, Finland. Complete post-doctor research in 2000. Dr. Yi Lu has been Professor of College of Mechanical Engineering since 1998, a supervisor of candidate of doctor since 2004 at Yanshan University in Qinhuangdao, P. R. China. He has published more than 190 papers.

Yang Liu is Ph.D. at College of Mechanical Engineering, Yanshan University, Qinhuangdao, Hebei, 066004, PR China.

Yang Lu, Engineer of Harbin Electric Corporation (Qinhuangdao) Heavy Equipment Company Limited, got his B.S. (Engineering) degree at College of Mechanical Engineering, Yanshan University.

Nijia Ye is candidate of Ph.D. at College of Mechanical Engineering, Yanshan University, Qinhuangdao, Hebei, 066004, PR China.

Bo Hu, Associated Professor, got his Ph.D. at College of Mechanical Engineering, Yanshan University, Qinhuangdao, PR China, in 2010.

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Lu, Y., Liu, Y., Lu, Y. et al. Dynamics analysis and workspace of a novel 4-DoF parallel manipulator with multi-couple constrained wrenches. J Mech Sci Technol 32, 3857–3867 (2018). https://doi.org/10.1007/s12206-018-0738-z

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  • DOI: https://doi.org/10.1007/s12206-018-0738-z

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