Compliance criteria are used to evaluate the general class of over-running clutches to determine which type is best suited to benefit from compliance. The criteria used in the evaluation include the presence and angle of rotation of revolute joints, the possibility for part count reduction, the presence of springs, possible reduction in weight, and the method of clutch engagement. Sprag, spring, roller or ball, and ratchet and pawl clutch types were evaluated, and the ratchet and pawl type of over-running clutch was demonstrated to be the most promising. Within this type of over-running clutch, different designs incorporating bending, tension, and compression loading of the pawls were explored to determine the best method for loading the pawls. The clutches were compared using the maximum output torque. It was determined that the clutch incorporating rigid pawls loaded in compression produced the largest output torque. The maximum output torque for this clutch was measured at 65.6 N-m.
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September 2002
Technical Papers
Evaluation and Comparison of Alternative Compliant Overrunning Clutch Designs
Gregory M. Roach,
Gregory M. Roach
Mechanical Engineering Dept., Brigham Young University, Provo, UT 84602
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Larry L. Howell
Larry L. Howell
Mechanical Engineering Dept., Brigham Young University, Provo, UT 84602
Search for other works by this author on:
Gregory M. Roach
Mechanical Engineering Dept., Brigham Young University, Provo, UT 84602
Larry L. Howell
Mechanical Engineering Dept., Brigham Young University, Provo, UT 84602
Contributed by the Design for Manufacturability Committee for publication in the JOURNAL OF MECHANICAL DESIGN. Manuscript received October 1999. Associate Editor: S. Kota.
J. Mech. Des. Sep 2002, 124(3): 485-491 (7 pages)
Published Online: August 6, 2002
Article history
Received:
October 1, 1999
Online:
August 6, 2002
Citation
Roach , G. M., and Howell , L. L. (August 6, 2002). "Evaluation and Comparison of Alternative Compliant Overrunning Clutch Designs ." ASME. J. Mech. Des. September 2002; 124(3): 485–491. https://doi.org/10.1115/1.1480414
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