Tuning stiffness nonlinearty: theory and applications

Perfect elasticity is not achievable in real-life situation, so spring stiffness is not perfectly constant. In this paper, we study the effect of modifying non-linear stiffness terms while keeping the nominal stiffness constant. We introduce three methods to design and tune linear and nonlinear elastic behavior in the context of compliant mechanisms and we present mechanical realizations. These designs are modeled using Euler-Bernoulli beam theory. Numerical simulation and experimental measurement show a good match with the theoretical model. We then present applications of our stiffness tuning methods to mechanical metamaterials, mechanical resonators, and mechanical computation.


Published in:
Proceedings of the ASME 2020 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference, 16667
Presented at:
ASME 2020 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference (IDETC/CIE 2020), [Online event], August 17-19, 2020
Year:
Aug 16 2020
Publisher:
ASME
Keywords:
Laboratories:


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 Record created 2020-10-05, last modified 2020-10-25

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