compliant, exure, cross-axis- exural pivot, static balancing
This work presents a nondimensional method for statically balancing flexural hinges, including those with stiffness that varies with load. Using a set of non-dimensional parameters, it is shown that one can quickly design a balancing mechanism for an idealized hinge/torsion spring system. This method is then extended to load-dependent systems, and is demonstrated with the design of a balanced cross-axis-flexural pivot with stiffness that varies as a function of compressive preload. A physical prototype is built and tested to verify the design method. The prototype demonstrates an average stiffness reduction of 87% over an 80 degree deflection range. The method enables improved static balancing for systems where the balancing pre-load influences the systems force-deflection behavior.
Original Publication Citation
Merriam, E.G. and Howell, L.L., “Non-Dimensional Approach for Static Balancing of Rotational Flexures,” Mechanism and Machine Theory, Vol. 84, doi:10.1016/j.mechmachtheory.2014.10.006, pp. 90-98, 2015.
BYU ScholarsArchive Citation
Merriam, Ezekiel G. and Howell, Larry L., "Non-Dimensional Approach for Static Balancing of Rotational Flexures" (2015). Faculty Publications. 1553.
Ira A. Fulton College of Engineering and Technology
© 2015 Elsevier Ltd. All rights reserved. This is the author's submitted version of this article. The definitive version can be found at http://www.sciencedirect.com/science/journal/0094114X. DOI: 10.1016/j.mechmachtheory.2014.10.006.
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