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Using the Parts Used to Be Removed to Improve Compliant Joint’s Performance

[+] Author Affiliations
Zhongtian Xie, Lifang Qiu, Debin Yang

University of Science and Technology Beijing, Beijing, China

Paper No. DETC2018-85507, pp. V05AT07A006; 8 pages
  • ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 5A: 42nd Mechanisms and Robotics Conference
  • Quebec City, Quebec, Canada, August 26–29, 2018
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5180-7
  • Copyright © 2018 by ASME


Compliant mechanisms gain their mobility from the deflection of flexible members. Compliant joints are the basis of compliant mechanisms, their performance has great influence on compliant mechanisms’ characteristics. This paper presents the concept that the parts used to be removed during design and manufacture processes can be retained and redesigned to improve compliant joints’ performance. They are designed specially to help to improve the joints’ ability to resist tension and compression. Some examples are proposed and discussed. 3D models are created and analyzed using finite element analysis (FEA) to verify the design concepts. A benchmark Lamina Emergent Torsional (LET) joint is also analyzed through FEA. The results obtained from FEA confirm the design concepts presented in this paper very well. Some other applications are also proposed and discussed.

Copyright © 2018 by ASME



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