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Conceptual design and dimensional synthesis of a novel parallel mechanism for lower-limb rehabilitation

  • Hui Wang (a1), Wen Li (a1), Haitao Liu (a2), Jianxin Zhang (a1) and Songtao Liu (a3)...
Summary

This paper introduces a novel 2R1T parallel manipulator redundantly actuated by pneumatic muscles for lower-limb rehabilitation. First, the conceptual design of the proposed 3-DOF parallel mechanism is presented. Then, the inverse kinematics and the generalized Jacobian analysis are carried out. Based on the generalized Jacobian and the constraint characteristics of the mechanism, the force/motion transmissibility of the redundantly actuated parallel mechanism is investigated via four individual cases without actuation redundancy, leading to a suitable local transmission index for the evaluation of kinematic performance of the proposed mechanism. Finally, the design variables are optimized by maximizing the mean value of the local transmission index with the aid of genetic algorithm. The numerical result shows that the proposed parallel mechanism can achieve a good kinematic performance in its task workspace.

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Corresponding author
*Corresponding author. E-mail: liuht@tju.edu.cn
References
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1. Díaz, I., Gil, J. J. and Sánchez, E., “Lower-limb robotic rehabilitation: Literature review and challenges,” J. Robot. Article ID 759764, 11 (2011). http://dx.doi.org/10.1155/2011/759764
2. Pohl, M., Werner, C., Holzgraefe, M., Kroczek, G., Wingendorf, I., Hoölig, G., Koch, R. and Hesse, S., “Repetitive locomotor training and physiotherapy improve walking and basic activities of daily living after stroke: A single-blind, randomized multicentre trial (DEutsche GAngtrainerStudie, DEGAS),” Clin. Rehabil. 21 (1), 1727 (2007).
3. Martins, M. M., Frizera, A. Neto, C. Santos and Ceres, R., “Review and Classification of Human Gait Training and Rehabilitation Devices,” Proceedings of the 11th European Association for the Advancement of Assistive Technology in Europe (AAATE'11), Maastricht, Netherlands (2011).
4. Colombo, G., Joerg, M., Schreier, R. and Dietz, V., “Treadmill training of paraplegic patients using a robotic orthosis,” J. Rehabil. Res. Development 47 (6), 693700 (2007).
5. Freivogel, S., Mehrholz, J., Husak-Sotomayor, T. and Schmalohr, D., “Gait training with the newly developed ‘LokoHelp’-system is feasible for non-ambulatory patients after stroke, spinal cord and brain injury. A feasibility study,” Brain Injury 22 (7-8), 625632 (2008).
6. West, R. G., “Powered gait orthosis and method of utilizing same,” US20040019304 (2004).
7. Schmidt, H., Werner, C., Bernhardt, R., Hesse, S. and Krüger, J., “Gait rehabilitation machines based on programmable footplates,” J. Neuroengineering Rehabil. 4 (2), 7 (2007).
8. Schmidt, H., “HapticWalker-A Novel Haptic Device for Walking Simulation,” Proceedings of the EuroHaptics, Munich, Germany (Jun. 5–7, 2004) pp. 60–67.
9. Yano, H., Tamefusa, S., Tanaka, N., Saitou, H., and Iwata, H., “Gait Rehabilitation System for Stair Climbing and Descending,” Proceedings of the 2010 IEEE Haptics Symposium, Waltham, MA, USA (2010) pp. 393–400.
10. Yoon, J., Novandy, B., Yoon, C. H. and Park, K. J., “A 6-DOF gait rehabilitation robot with upper and lower limb connections that allows walking velocity updates on various terrains,” IEEE/ASME Trans. Mechatronics 15 (2), 201215 (2010).
11. Yoon, J. and Ryu, J., “A novel locomotion interface with two 6-dof parallel manipulators that allows human walking on various virtual terrains,” The Int. J. Robot. Res. 25 (7), 689708 (2006).
12. Huang, T., Li, M., Li, Z., Chetwynd, D. G. and Whitehouse, D. J., “Optimal kinematic design of 2-DOF parallel manipulators with well-shaped workspace bounded by a specified conditioning index,” IEEE Trans. Robot. Autom. 20 (3), 538543 (2004).
13. Chablat, D. and Wenger, P., “Architecture optimization of a 3-DOF translational parallel mechanism for machining applications, the orthoglide,” IEEE Trans. Robot. Autom. 19 (3), 403410 (2003).
14. Gosselin, C. M. and Angeles, J., “The optimum kinematic design of a spherical three-degree-of-freedom parallel manipulator,” J. Mechanisms, Transmiss. Autom. Des. 111 (2), 202207 (1989).
15. Merlet, J. P., “Jacobian, manipulability, condition number, and accuracy of parallel robots,” J. Mech. Des. 128 (1), 199206 (2006).
16. Angeles, J., “Is there a characteristic length of a rigid-body displacement,” Mech. Mach. Theory 41 (8), 884896 (2006).
17. Liu, H., Huang, T. and Chetwynd, D. G., “A method to formulate a dimensionally homogeneous Jacobian of parallel manipulators,” IEEE Trans. Robot. 27 (1), 150156 (2011).
18. Ball, R. S., A Treatise on the Theory of Screws (Cambridge University Press, Cambridge, UK, 1998).
19. Freudenstein, F. and Woo, L. S., “Kinematic analysis of spatial mechanisms by means of screw coordinates. Part 2–analysis of spatial mechanisms,” J. Eng. Ind. 93 (1), 6773 (1971).
20. Sutherland, G. and Roth, B., “A transmission index for spatial mechanisms,” ASME J. Eng. Ind. 95 (2), 589597 (1973).
21. Chen, C. and Angeles, J., “Generalized transmission index and transmission quality for spatial linkages,” Mech. Mach. Theory 42 (9), 12251237 (2007).
22. Liu, X. J., Wu, C. and Wang, J., “A new approach for singularity analysis and closeness measurement to singularities of parallel manipulators,” J. Mech. Robot. 4 (4), 110, Article ID 041001 (2012).
23. Liu, H., Huang, T., Kecskeméthy, A. and Chetwynd, D. G., “A generalized approach for computing the transmission index of parallel mechanisms,” Mech. Mach. Theory 74, 245256 (2014).
24. Liu, X. J., Wu, C. and Xie, F., “Motion/force transmission indices of parallel manipulators,” Frontiers Mech. Eng. 6 (1), 8991 (2011).
25. Liu, H., Jia, X., Xiong, K. and Xie, S., “A parallel manipulator for ankle rehabilitation,” ZL201610380066.7, (2016).
26. CGA Normative Gait Database. Avaliable at: http://www.clinicalgaitanalysis.com
27. Huang, T., Liu, H. and Chetwynd, D. G., “Generalized Jacobian analysis of lower mobility manipulators,” Mech. Mach. Theory 46 (6), 831844 (2011).
28. Dai, J. S., Huang, Z. and Lipkin, H., “Mobility of overconstrained parallel mechanisms,” J. Mech. Des. 128 (1), 220229 (2006).
29. Liu, H. T., Wang, M., Huang, T., Chetwynd, D. G. and Kecskeméthy, A., “A dual space approach for force/motion transmissibility analysis of lower mobility parallel manipulators,” J. Mech. Robot. 7 (3), 17, Article ID 034504 (2015).
30. Huang, T., Yang, S., Wang, M., Sun, T. and Chetwynd, D. G., “An approach to determining the unknown twist/wrench subspaces of lower mobility serial kinematic chains,” J. Mech. Robot. 7 (3), 19, Article ID 031003 (2015).
31. Liu, H., Huang, T., Kecskeméthy, A., Chetwynd, D. G. and Li, Q., “Force/motion transmissibility analyses of redundantly actuated and overconstrained parallel manipulators,” Mech. Mach. Theory 109, 126138 (2017).
32. Wang, J., Wu, C. and Liu, X.-J., “Performance evaluation of parallel manipulators: Motion/force transmissibility and its index,” Mech. Mach. Theory 45 (10), 14621476 (2010).
33. Payne, K. A., Berg, K. and Latin, R. W., “Ankle injuries and ankle strength, flexibility, and proprioception in college basketball players,” J. Athletic Training 32 (3), 221225 (1997).
34. Mattacola, C. G. and Dwyer, M. K., “Rehabilitation of the ankle after acute sprain or chronic instability,” J. Athletic Training 37 (4), 413429 (2002).
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Robotica
  • ISSN: 0263-5747
  • EISSN: 1469-8668
  • URL: /core/journals/robotica
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