Stiffness Analysis of a New Tensegrity Mechanism based on Planar Dual-triangles

Wanda Zhao, Anatol Pashkevich, Alexandr Klimchik, Damien Chablat

2020

Abstract

The paper deals with the stiffness analysis and stability study of a new type of tensegrity mechanism based on dual-triangle structures, which actuated by adjusting elastic connections between the triangle edges. For a single segment of such mechanism, the torque-deflection relation was obtained as a function of control inputs and geometric parameters. It was proved that a single section of the mechanism can has either a single or three equilibrium configurations that can be both stable and unstable. Corresponding conditions of stability were found allowing user to choose control inputs ensuring the mechanism controllability, and the obtained results are confirmed by the simulation examples. The structure composed of two segments in serial was also analysed and an equivalent serial structure with non-linear virtual springs in the joints was proposed. It was proved that the stiffness of such structure decreases while the external loading increases, which may lead to the buckling phenomenon.

Paper Citation

in Harvard Style

Zhao W., Pashkevich A., Klimchik A. and Chablat D. (2020). Stiffness Analysis of a New Tensegrity Mechanism based on Planar Dual-triangles.In Proceedings of the 17th International Conference on Informatics in Control, Automation and Robotics - Volume 1: ICINCO, ISBN 978-989-758-442-8, pages 402-411. DOI: 10.5220/0009803104020411

in Bibtex Style

@conference{icinco20,
author={Wanda Zhao and Anatol Pashkevich and Alexandr Klimchik and Damien Chablat},
title={Stiffness Analysis of a New Tensegrity Mechanism based on Planar Dual-triangles},
booktitle={Proceedings of the 17th International Conference on Informatics in Control, Automation and Robotics - Volume 1: ICINCO,},
year={2020},
pages={402-411},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0009803104020411},
isbn={978-989-758-442-8},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 17th International Conference on Informatics in Control, Automation and Robotics - Volume 1: ICINCO,
TI - Stiffness Analysis of a New Tensegrity Mechanism based on Planar Dual-triangles
SN - 978-989-758-442-8
AU - Zhao W.
AU - Pashkevich A.
AU - Klimchik A.
AU - Chablat D.
PY - 2020
SP - 402
EP - 411
DO - 10.5220/0009803104020411