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JRM Vol.29 No.3 pp. 520-527
doi: 10.20965/jrm.2017.p0520
(2017)

Paper:

Kinematics and Singularity Analysis of a Four-Degree-of-Freedom Serial-Parallel Hybrid Manipulator

Guangying Ma, Yuan Chen, Yunlong Yao, and Jun Gao

School of Mechanical, Electrical and Information Engineering, Shandong University
Weihai 264209, China

Corresponding author

Received:
November 20, 2016
Accepted:
February 1, 2017
Published:
June 20, 2017
Keywords:
serial-parallel hybrid manipulator, parallel mechanism, the screw theory, kinematics, singularity
Abstract

Kinematics and Singularity Analysis of a Four-Degree-of-Freedom Serial-Parallel Hybrid Manipulator

4DOF serial-parallel hybrid manipulator

For adapting to the complex working environments of amphibious manipulators, we proposed a serial-parallel hybrid quadruped walking manipulator. We simplified the leg mechanism of the serial-parallel hybrid manipulator as a 2UPU-UPR parallel mechanism, and then analyzed the degree of freedom (DOF) of the parallel mechanism by using the screw theory. The results show that the position of the Y direction and the pose of the Z direction are two independent variables which influence the mechanism movement. We deduced the kinematics inverse solution and the velocity Jacobian matrix of the 2UPU-UPR parallel mechanism. Based on the analysis of the Jacobian matrix, three kinds of kinematic singularities of the 2UPU-UPR parallel mechanism are identified. The results show that the 2UPU-UPR parallel mechanism doesn’t have the kinematic inverse singularity, but it has three kinds of kinematic forward singularities and two kinds of combined singularities. Finally, the variation of motorial parameters of this 2UPU-UPR parallel mechanism was discussed by a calculation example.

References
  1. [1] M. Kalakrishnan, J. Buchli, P. Pastor et al., “Learning, planning, and control for quadruped locomotion over challenging terrain,” Int. J. of Robotics Research, Vol.30, pp. 236-258, 2011.
  2. [2] C. Semini, N. G. Tsafarakis, E. Guglielmino et al., “Design of HyQ-a hydraulically and electrically actuated quadruped robot,” Proc. IMechE Part I: J. of Systems and Control Engineering, Vol.225, pp. 831-849, 2011.
  3. [3] H. B. Wang, G. L. Xu, X. Hu et al., “Dynamics of quadruped walking robot with parallel leg mechanism,” J. of Mechanical Engineering, Vol.48, pp. 76-82, 2012.
  4. [4] Y. F. Wu, M. Higuchi, Y. Takeda et al., “ Development of a power assist system of a walking chair (proposition of the speed-torque combination power assist system),” J. of Robotics and Mechatronics, Vol.17, pp. 189-197, 2005.
  5. [5] Y. Rong, Z. L. Jin, and M. K. Qu, “Design of parallel mechanical leg of six-legged robot,” Optics and Precision Engineering, Vol.20, pp. 1532-1541, 2012.
  6. [6] F. Gao, C. K. Qi, Q. Sun et al., “A quadruped robot with parallel mechanism legs,” IEEE Int. Conf. on Robotics and Automation, Hong Kong, pp. 2566-2566, 2014.
  7. [7] M. Ceccarelli, E. Ottaviano, and G. Carbone, “A Study of Feasibility for a Novel Parallel-serial Manipulator,” J. of Robotics and Mechatronics, Vol.14, pp. 304-312, 2002.
  8. [8] Q. Zeng and Y. F. Fang, “Structural synthesis and analysis of serial-parallel hybrid mechanisms with spatial multi-loop kinematic chains,” Mechanism and Machine Theory, Vol.49, pp. 198-215, 2012.
  9. [9] X. H. Tian, F. Gao, X. B. Chen et al., “Mechanism design and comparison for quadruped robot with parallel-serial leg,” J. of Mechanical Engineering, Vol.49, pp. 81-88, 2013.
  10. [10] B. Hu, “Complete kinematics of a serial-parallel manipulator formed by two Tricept parallel manipulators connected in serials,” Nonlinear Dynamics, Vol.78, pp. 2685-2698, 2014.
  11. [11] J. S. Gao, M. X. Li, B. J. Hou et al., “Kinematics analysis on the serial-parallel leg of a novel quadruped walking robot,” Optics and Precision Engineering, Vol.23, pp. 3147-3160, 2015.
  12. [12] L. Qin, F. C. Liu, T. T. Hou et al., “Kinematics Analysis of Serial-Parallel Hybrid Humanoid Robot in Reaching Movement,” J. of Robotics and Mechatronics, Vol.26, pp. 592-599, 2014.
  13. [13] C. Fan, H. Lin, and Y. Zhang, “Type synthesis of 2T2R, 1T2R and 2R parallel mechanisms,” Mechanism and Machine Theory, Vol.61, pp. 184-190, 2012.
  14. [14] N. Kumar, O. Piccin, and B. Bayle, “A task-based type synthesis of novel 2T2R parallel mechanisms,” Mechanism and Machine Theory, Vol.77, pp. 59-72, 2014.
  15. [15] W. Ye, Y. F. Fang, S. Guo et al., “Type synthesis of 2T2R parallel mechanisms based on motion equivalent chain method,” Proc. of the Institution of Mechanical Engineers, Part C: J. of Mechanical Engineering Science, pp. 3209-3217, 2014.
  16. [16] Y. Cao, Y. L. Qin, H. Chen et al., “Structural synthesis of fully isotropic and decoupled 2T2R parallel robot,” J. of Harbin Institute of Technology, Vol.48, pp. 94-100, 2016.
  17. [17] W. Ye, Y. F. Fang, S. Guo et al., “Kinematics and singularity analysis of a 2R2T parallel mechanisms,” Proc. of the ASME Int. Design Engineering Technical Conf. and Computers and Information in Engineering Conf., pp. 9-14, 2015.
  18. [18] R. F. Wen, Y. F. Fang, and Y. Q. Chen, “Kinematics and performance analysis of a 2R2T parallel mechanism,” J. of Beijing Jiaotong Universit, Vol.40, pp. 72-79, 2016.
  19. [19] Z. Huang, Y. S. Zhao, and T. S. Zhao, “Advanced spatial mechanism,” Beijing: Higher Education Press, 2006.

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Last updated on Nov. 10, 2017