Shape change analysis of cable-actuated cylindrical tensegrity structures

Kaila Roffman, George A. Lesieutre

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This research develops a method to determine the set of reachable states for an initially straight, cylindrical triplex tensegrity tower. Supporting cables are actuated to change the overall shape of the structure, with the lengths of struts and face cables held fixed. First, this study establishes the set of geometrically reachable shapes for single-bay cylindrical tensegrities, while considering constraints associated with: collisions between members; and maintaining unilateral member forces (cables in tension and struts in compression). For a single bay, a constrained parameterized transformation describes the physically-reachable range of locations and orientations of the articulated top face with respect to the initial location and orientation of the bottom face. Multi-bay tensegrities enable long, boom-like structures that offer a larger range of obtainable shapes. The articulation of multi-bay tensegrity towers is addressed via sequential application of single-bay transformations. The selection of the number of bays to use in the design of a given tower involves tradeoffs between conventional structural properties (stiffness, strength, mass) and articulation. The results provide insight into the achievable range of motion and potential utility of articulated tensegrity towers.

Original languageEnglish (US)
Title of host publicationAIAA Scitech 2019 Forum
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105784
DOIs
StatePublished - Jan 1 2019
EventAIAA Scitech Forum, 2019 - San Diego, United States
Duration: Jan 7 2019Jan 11 2019

Publication series

NameAIAA Scitech 2019 Forum

Conference

ConferenceAIAA Scitech Forum, 2019
CountryUnited States
CitySan Diego
Period1/7/191/11/19

Fingerprint

Towers
Cables
Struts
Structural properties
Stiffness

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

Cite this

Roffman, K., & Lesieutre, G. A. (2019). Shape change analysis of cable-actuated cylindrical tensegrity structures. In AIAA Scitech 2019 Forum (AIAA Scitech 2019 Forum). American Institute of Aeronautics and Astronautics Inc, AIAA. https://doi.org/10.2514/6.2019-1526
Roffman, Kaila ; Lesieutre, George A. / Shape change analysis of cable-actuated cylindrical tensegrity structures. AIAA Scitech 2019 Forum. American Institute of Aeronautics and Astronautics Inc, AIAA, 2019. (AIAA Scitech 2019 Forum).
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Roffman, K & Lesieutre, GA 2019, Shape change analysis of cable-actuated cylindrical tensegrity structures. in AIAA Scitech 2019 Forum. AIAA Scitech 2019 Forum, American Institute of Aeronautics and Astronautics Inc, AIAA, AIAA Scitech Forum, 2019, San Diego, United States, 1/7/19. https://doi.org/10.2514/6.2019-1526

Shape change analysis of cable-actuated cylindrical tensegrity structures. / Roffman, Kaila; Lesieutre, George A.

AIAA Scitech 2019 Forum. American Institute of Aeronautics and Astronautics Inc, AIAA, 2019. (AIAA Scitech 2019 Forum).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Roffman K, Lesieutre GA. Shape change analysis of cable-actuated cylindrical tensegrity structures. In AIAA Scitech 2019 Forum. American Institute of Aeronautics and Astronautics Inc, AIAA. 2019. (AIAA Scitech 2019 Forum). https://doi.org/10.2514/6.2019-1526