Energy release for the actuation and deployment of muscle-inspired asymmetrically multistable chains

Narayanan Kidambi, Yisheng Zheng, Ryan L. Harne, K. W. Wang

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

Abstract

Animal locomotion and movement requires energy, and the elastic potential energy stored in skeletal muscle can facilitate movements that are otherwise energetically infeasible. A significant proportion of this energy is captured and stored in the micro- and nano-scale constituents of muscle near the point of instability between asymmetric equilibrium states. This energy may be quickly released to enable explosive macroscopic motions or to reduce the metabolic cost of cyclic movements. Inspired by these behaviors, this research explores modular metastructures of bistable element chains and develops methods to release the energy stored in higher-potential system configurations. Quasi-static investigations reveal the role of state-transition pathways on the overall efficiency of the deployment event. It is shown that sequential, local release of energy from the bistable elements is more efficient than concurrent energy release achieved by applying a force at the free end of the structure. From dynamic analyses and experiments, it is shown that that the energy released from one bistable element can be used to activate the release of energy from subsequent links, reducing the actuation energy required to extend or deploy the chain below that required for quasi-static deployment. This phenomenon is influenced by the level of asymmetry in the bistable constituents and the location of the impulse that initiates the deployment of the structure. The results provide insight into the design and behavior of asymmetrically multistable chains that can leverage stored potential energy to enable efficient and effective system deployment and length change.

Original languageEnglish (US)
Title of host publicationActive and Passive Smart Structures and Integrated Systems XII
EditorsJae-Hung Han, Alper Erturk
PublisherSPIE
ISBN (Electronic)9781510616868
DOIs
StatePublished - 2018
EventActive and Passive Smart Structures and Integrated Systems XII 2018 - Denver, United States
Duration: Mar 5 2018Mar 8 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10595
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherActive and Passive Smart Structures and Integrated Systems XII 2018
CountryUnited States
CityDenver
Period3/5/183/8/18

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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