Mathematics of Stable Tensegrity Structures

Ajay B Harish, Vijay Nandurdikar, Shubham Deshpande, Stephanie Andress

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Abstract

Tensegrity structures have been extensively studied over the last years due to their potential applications in modern engineering like metamaterials, deployable structures, planetary lander modules, etc. Many of the form-finding methods proposed continue to produce structures with one or more soft/swinging modes. These modes have been vividly highlighted and outlined as the grounds for these structures to be unsuitable as engineering structures. This work proposes a relationship between the number of rods and strings to satisfy the full-rank convexity criterion as a part of the form-finding process. Using the proposed form-finding process for the famous three-rod tensegrity, the work proposes an alternative three-rod ten-string that is both stable. The work demonstrates that the stable tensegrities suitable for engineering are feasible and can be designed.
Original languageEnglish
Number of pages27
JournalJournal of Theoretical, Computational and Applied Mechanics
DOIs
Publication statusPublished - 6 May 2023

Keywords

  • Tensegrity
  • Form-finding
  • Linearisation stability
  • modal analysis
  • space structure
  • deployable structure

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