Being able to design structures with multiple equilibrium configurations is the basis for the design of multi-stable structures, which are of interest for future research on multi-configuration structures that require ‘simple’ actuation schemes. It is already known that adding elastic springs to a rigid mechanism can create structures with multiple equilibrium configurations. The spring properties, such as their rest positions, can be taken as design parameters that can be used to achieve specific equilibrium configurations of the structure. This paper provides a linearized formulation for the equilibrium constraints that can be solved for the rest positions of the springs. This method allows the design of specific equilibrium configurations. It can also handle more complex problems and is easier to solve in comparison to existent techniques. An example design of a four-bar linkage that has 5 equilibrium configurations is presented.
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ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
August 26–29, 2018
Quebec City, Quebec, Canada
Conference Sponsors:
- Design Engineering Division
- Computers and Information in Engineering Division
ISBN:
978-0-7918-5181-4
PROCEEDINGS PAPER
Design of Structures With Multiple Equilibrium Configurations
Yang Li,
Yang Li
California Institute of Technology, Pasadena, CA
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Sergio Pellegrino
Sergio Pellegrino
California Institute of Technology, Pasadena, CA
Search for other works by this author on:
Yang Li
California Institute of Technology, Pasadena, CA
Sergio Pellegrino
California Institute of Technology, Pasadena, CA
Paper No:
DETC2018-86157, V05BT07A063; 5 pages
Published Online:
November 2, 2018
Citation
Li, Y, & Pellegrino, S. "Design of Structures With Multiple Equilibrium Configurations." Proceedings of the ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 5B: 42nd Mechanisms and Robotics Conference. Quebec City, Quebec, Canada. August 26–29, 2018. V05BT07A063. ASME. https://doi.org/10.1115/DETC2018-86157
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