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28 April 2023 An origami-inspired tensegrity structure with multistability
Richard Rodriguez-Feliciano, K. W. Wang
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Proceedings Volume 12483, Active and Passive Smart Structures and Integrated Systems XVII; 1248302 (2023) https://doi.org/10.1117/12.2658027
Event: SPIE Smart Structures + Nondestructive Evaluation, 2023, Long Beach, California, United States
Abstract
Tensegrity structures have been harnessed in the design of many reconfigurable and deployable systems due to their high strength to weight ratio, stiffness tunability and multistability programmability. In this paper, we present a design methodology of an origami-inspired multistable tensegrity structure that can achieve up to three stable configurations in one unit cell. This class-3 tensegrity structure can achieve equilibrium states at the fully deployed and flat folded states, and the transition between its stable states is controlled with a one directional displacement, a feature not observed in previous tensegrity elements. To design this system the required input are the three heights at which a stable configuration is desired. At each height the total strain energy of the system of strings is evaluated to select the unstretched length and stiffness values of each string that satisfy the conditions of stability. Analytically it was found that achieving a stable configuration at each height is affected by the number of strings that are in tension at this point, and the deformation path, stiffness and unstretched length of each string.
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Richard Rodriguez-Feliciano and K. W. Wang "An origami-inspired tensegrity structure with multistability", Proc. SPIE 12483, Active and Passive Smart Structures and Integrated Systems XVII, 1248302 (28 April 2023); https://doi.org/10.1117/12.2658027
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KEYWORDS
Design and modelling
Kinematics
Bistability
Scientific research
Structural design
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