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Investigation of Compliant Ortho-Planar Springs for Rotational Applications

[+] Author Affiliations
Nathan O. Rasmussen

Caterpillar, Inc., Mossville, IL

Robert H. Todd, Larry L. Howell, Spencer P. Magleby

Brigham Young University, Provo, UT

Paper No. DETC2006-99459, pp. 159-171; 13 pages
  • ASME 2006 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 2: 30th Annual Mechanisms and Robotics Conference, Parts A and B
  • Philadelphia, Pennsylvania, USA, September 10–13, 2006
  • Conference Sponsors: Design Engineering Division and Computers and Information in Engineering Division
  • ISBN: 0-7918-4256-8 | eISBN: 0-7918-3784-X
  • Copyright © 2006 by ASME


This paper explores the feasibility of using compliant-ortho-planar springs (COPS) for rotational applications. The primary motivation is the application of COPS to a rubber v-belt continuously variable transmission (CVT). Although stresses and stress concentrations are important for the design of a COPS, this paper will focus on the behavior of a COPS resulting specifically from its rotation. This paper focuses on issues related to stress stiffening and lateral instability. Both phenomena are a direct result of the inertial loads a COPS would experience in a rotating environment. The results show how stress stiffening and lateral buckling are influenced by design parameters. Conclusions and recommendations for further research are presented.

Copyright © 2006 by ASME
Topics: Springs



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