Compliant mechanisms have shown a great deal of potential, in just a few decades of its development, in providing innovative solutions to design problems. However, their use has been limited due to challenges associated with the materials. With ever increasing focus on the applications of compliant mechanisms, it is necessary to find alternatives to the existing material usage and methods of prototyping. This paper presents a methodology for the design of compliant segments and compliant mechanisms with improved creep resistance and fatigue life properties using the current state-of-the-art materials. The methodology proposes using a stronger material at the core of a softer casing. The paper provides an equivalent pseudo-rigid-body model and a closed-form elliptic integral formulation for a fixed-free compliant segment with an insert. The equivalent pseudo-rigid-body model is verified experimentally for the prediction of beam end point displacements. The paper also presents experimental results that show improvements obtained in the creep recovery properties as expected using the proposed design philosophy.
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ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
August 2–5, 2015
Boston, Massachusetts, USA
Conference Sponsors:
- Design Engineering Division
- Computers and Information in Engineering Division
ISBN:
978-0-7918-5712-0
PROCEEDINGS PAPER
Development of a Methodology for Pseudo-Rigid-Body Models of Compliant Beams With Inserts, and Experimental Validation
Ashok Midha,
Ashok Midha
Missouri University of Science and Technology, Rolla, MO
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Raghvendra S. Kuber,
Raghvendra S. Kuber
Missouri University of Science and Technology, Rolla, MO
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Sushrut G. Bapat
Sushrut G. Bapat
Missouri University of Science and Technology, Rolla, MO
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Ashok Midha
Missouri University of Science and Technology, Rolla, MO
Raghvendra S. Kuber
Missouri University of Science and Technology, Rolla, MO
Sushrut G. Bapat
Missouri University of Science and Technology, Rolla, MO
Paper No:
DETC2015-47943, V05AT08A028; 10 pages
Published Online:
January 19, 2016
Citation
Midha, A, Kuber, RS, & Bapat, SG. "Development of a Methodology for Pseudo-Rigid-Body Models of Compliant Beams With Inserts, and Experimental Validation." Proceedings of the ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 5A: 39th Mechanisms and Robotics Conference. Boston, Massachusetts, USA. August 2–5, 2015. V05AT08A028. ASME. https://doi.org/10.1115/DETC2015-47943
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