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Failure recovery for wrench capability of wire-actuated parallel manipulators

Published online by Cambridge University Press:  07 November 2011

Leila Notash*
Affiliation:
Queen's University, Kingston, Canada
*
*Corresponding author. E-mail: [email protected]

Summary

Wire-actuated parallel manipulators and their failures are studied in this paper taking into consideration their failure modes. A methodology for investigating the effect of wire/actuator failures on the force/moment capability of manipulators is presented, and the criteria for full and partial recovery from these failures are established. The methodology is also applicable for the cases that the minimum norm solution for the vector of wire tensions gives a negative value for tension by treating the corresponding wire as failed. The proposed criteria are also valid for the manipulators that utilize hybrid actuation of wires and joints. Three planar wire-actuated parallel manipulators are used as the case study to illustrate the proposed methodology and criteria.

Type
Articles
Copyright
Copyright © Cambridge University Press 2011

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References

1.Roberts, R. G. and Maciejewski, A. A., “A local measure of fault tolerance for kinematically redundant manipulators,” IEEE Trans. Robot. Autom. 12 (4), 543552 (1996).CrossRefGoogle Scholar
2.Ting, Y., Tosunoglu, S. and Freeman, R., “Torque redistribution and time regulation methods for actuator saturation avoidance of fault-tolerant parallel robots,” J. Robot. Syst. 12 (12), 807820 (1995).CrossRefGoogle Scholar
3.Notash, L. and Huang, L., “On the design of fault tolerant parallel manipulators,” Mech. Mach. Theory 38 (1), 85101 (2003).CrossRefGoogle Scholar
4.Notash, L. and Podhorodeski, R. P., “Complete forward displacement solution for a class of three-branch parallel manipulators,” J. Robot. Syst. 11 (6), 471485 (1994).Google Scholar
5.Notash, L. and Podhorodeski, R. P., “On the forward displacement problem of three-branch parallel manipulators,” Mech. Mach. Theory 30 (3), 391404 (1995).CrossRefGoogle Scholar
6.Notash, L. and Podhorodeski, R. P., “Fixtureless calibration of parallel manipulators,” Trans. Can. Soc. Mech. Eng. 21 (3), 273294 (1997).CrossRefGoogle Scholar
7.Notash, L., “Joint sensor fault detection for fault tolerant parallel manipulators,” J. Robot. Syst. 17 (3), 149157 (2000).3.0.CO;2-N>CrossRefGoogle Scholar
8.Notash, L., “Uncertainty configurations of parallel manipulators,” Mech. Mach. Theory 33 (1/2), 123138 (1998).CrossRefGoogle Scholar
9.Notash, L. and Podhorodeski, R. P., “Forward displacement analysis and uncertainty configurations of parallel manipulators with a redundant branch,” J. Robot. Syst. 13 (9), 587601 (1996).3.0.CO;2-I>CrossRefGoogle Scholar
10.Chen, Y., McInroy, J. E. and Yi, Y., “Optimal, fault-tolerant mappings to achieve secondary goals without compromising primary performance,” IEEE Trans. Robot. Autom. 19 (4), 680691 (2003).Google Scholar
11.Hassan, M. and Notash, L., “Reduced motion of parallel manipulators due to active joint jam,” CSME Trans. (special edition) 28 (2A), 165184 (2004).Google Scholar
12.Hassan, M. and Notash, L., “Optimizing fault tolerance to joint jam in the design of parallel robot manipulators,” Mech. Mach. Theory 42 (10), 14011417 (2007).CrossRefGoogle Scholar
13.Roberts, R. G., Graham, T. and Lippitt, T., “On the inverse kinematics, statics, and fault tolerance of cable-suspended robots,” J. Robot. Syst. 15 (10), 581597 (1998).3.0.CO;2-P>CrossRefGoogle Scholar
14.Notash, L., “A Failure Recovery Methodology for Wire-Actuated Parallel Manipulators,” Proceedings of CSME Forum, Victoria, BC (Jun 7–9, 2010) 8 pp.Google Scholar
15.Mroz, G. and Notash, L., “Design and prototype of parallel, wire-actuated robots with a constraining linkage,” J. Robot. Syste. 21 (12), 677687 (2004).Google Scholar
16.Doty, K. I., Melchiorri, C. and Bonivento, C., “A theory of generalized inverses applied to robotics,” Int. J. Robot. Res. 12 (1), 119 (1995).CrossRefGoogle Scholar
17.McColl, D. and Notash, L., “Workspace envelope formulation of planar wire-actuated parallel manipulators,” Trans. Can. Soc. Mech. Eng. (special edition) 33 (4), 547560 (2009).CrossRefGoogle Scholar