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Underactuated fluidic control of a continuous multistable membrane.

ABSTRACT: This work addresses the challenge of underactuated pattern generation in continuous multistable structures. The examined configuration is a slender membrane which can concurrently sustain two different equilibria states, separated by transition regions, and is actuated by a viscous fluid. We first demonstrate the formation and motion of a single transition region and then sequencing of several such moving transition regions to achieve arbitrary patterns by controlling the inlet pressure of the actuating fluid. Finally, we show that nonuniform membrane properties, along with transient dynamics of the fluid, can be leveraged to directly snap through any segment of the membrane.

SUBMITTER: Peretz O

PROVIDER: S-EPMC7071869 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature

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Underactuated fluidic control of a continuous multistable membrane.

Peretz Ofek O Mishra Anand K AK Shepherd Robert F RF Gat Amir D AD

Proceedings of the National Academy of Sciences of the United States of America 20200224 10

This work addresses the challenge of underactuated pattern generation in continuous multistable structures. The examined configuration is a slender membrane which can concurrently sustain two different equilibria states, separated by transition regions, and is actuated by a viscous fluid. We first demonstrate the formation and motion of a single transition region and then sequencing of several such moving transition regions to achieve arbitrary patterns by controlling the inlet pressure of the a ...[more]

PMID: 32094198

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