Sleeve pneumatic muscles have shown significant performance improvements over conventional air muscle design, offering increased energy efficiency, force output, and stroke length, while allowing the actuator to become a structural component. However, there remain comparatively few studies involving sleeve muscles, and current applications have not focused on their potential advantages for joints actuated antagonistically with two muscles or their application to a more general class of pneumatic artificial muscle. This research presents a modular sleeve muscle design using the McKibben type construction, with a separate membrane and braid. To further increase stroke length, an internal pulley mechanism is implemented. The performance of the sleeve muscle is compared to an equivalent unaltered muscle and shows substantial improvements in force output, stroke length, and energy efficiency. Further testing shows that the internal pulley mechanism increased the effective stroke length by 82%, albeit at the cost of reduced maximum force output.
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February 2017
Research-Article
A McKibben Type Sleeve Pneumatic Muscle and Integrated Mechanism for Improved Stroke Length
Michael F. Cullinan,
Michael F. Cullinan
Department of Mechanical and
Manufacturing Engineering,
University of Dublin, Trinity College,
Dublin D02 F859, Ireland
e-mail: cullinmf@tcd.ie
Manufacturing Engineering,
University of Dublin, Trinity College,
Dublin D02 F859, Ireland
e-mail: cullinmf@tcd.ie
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Eamonn Bourke,
Eamonn Bourke
Department of Mechanical and
Manufacturing Engineering,
University of Dublin, Trinity College,
Dublin D02 F859, Ireland
e-mail: bourkeea@tcd.ie
Manufacturing Engineering,
University of Dublin, Trinity College,
Dublin D02 F859, Ireland
e-mail: bourkeea@tcd.ie
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Kevin Kelly,
Kevin Kelly
Department of Mechanical and
Manufacturing Engineering,
University of Dublin, Trinity College,
Dublin D02 F859, Ireland
e-mail: kekelly@tcd.ie
Manufacturing Engineering,
University of Dublin, Trinity College,
Dublin D02 F859, Ireland
e-mail: kekelly@tcd.ie
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Conor McGinn
Conor McGinn
Department of Mechanical and
Manufacturing Engineering,
University of Dublin, Trinity College,
Dublin D02 F859, Ireland
e-mail: mcginnc@tcd.ie
Manufacturing Engineering,
University of Dublin, Trinity College,
Dublin D02 F859, Ireland
e-mail: mcginnc@tcd.ie
Search for other works by this author on:
Michael F. Cullinan
Department of Mechanical and
Manufacturing Engineering,
University of Dublin, Trinity College,
Dublin D02 F859, Ireland
e-mail: cullinmf@tcd.ie
Manufacturing Engineering,
University of Dublin, Trinity College,
Dublin D02 F859, Ireland
e-mail: cullinmf@tcd.ie
Eamonn Bourke
Department of Mechanical and
Manufacturing Engineering,
University of Dublin, Trinity College,
Dublin D02 F859, Ireland
e-mail: bourkeea@tcd.ie
Manufacturing Engineering,
University of Dublin, Trinity College,
Dublin D02 F859, Ireland
e-mail: bourkeea@tcd.ie
Kevin Kelly
Department of Mechanical and
Manufacturing Engineering,
University of Dublin, Trinity College,
Dublin D02 F859, Ireland
e-mail: kekelly@tcd.ie
Manufacturing Engineering,
University of Dublin, Trinity College,
Dublin D02 F859, Ireland
e-mail: kekelly@tcd.ie
Conor McGinn
Department of Mechanical and
Manufacturing Engineering,
University of Dublin, Trinity College,
Dublin D02 F859, Ireland
e-mail: mcginnc@tcd.ie
Manufacturing Engineering,
University of Dublin, Trinity College,
Dublin D02 F859, Ireland
e-mail: mcginnc@tcd.ie
Manuscript received September 9, 2016; final manuscript received December 5, 2016; published online January 11, 2017. Assoc. Editor: Marcia K. O'Malley.
J. Mechanisms Robotics. Feb 2017, 9(1): 011013 (9 pages)
Published Online: January 11, 2017
Article history
Received:
September 9, 2016
Revised:
December 5, 2016
Citation
Cullinan, M. F., Bourke, E., Kelly, K., and McGinn, C. (January 11, 2017). "A McKibben Type Sleeve Pneumatic Muscle and Integrated Mechanism for Improved Stroke Length." ASME. J. Mechanisms Robotics. February 2017; 9(1): 011013. https://doi.org/10.1115/1.4035496
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