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Soft Cells for Programmable Self-Assembly of Robotic Modules

Publication date:

Authors:

  • Published in: Soft Robotics, vol. 1, num. 4, p. 239-245
  • Publication date: 2014

Programmable self-assembly of chained robotic systems holds potential for the automatic construction of complex robots from a minimal set of building blocks. However, current robotic platforms are limited to modules of uniform rigidity, which results in a limited range of obtainable morphologies and thus functionalities of the system. To address these challenges, we investigate in this paper the role of softness in a programmed self-assembling chain system. We rely on a model system consisting of “soft cells” as modules that can obtain different mechanical softness presettings. Starting from a linear chain configuration, the system self-folds into a target morphology based on the intercellular interactions. We systematically investigate the influence of mechanical softness of the individual cells on the self-assembly process. Also, we test the hypothesis that a mixed distribution of cells of different softness enhances the diversity of achievable morphologies at a given resolution compared to systems with modules of uniform rigidity. Finally, we illustrate the potential of our system by the programmable self-assembly of complex and curvilinear morphologies that state-of-the-art systems can only achieve by significantly increasing their number of modules.

    Note:

    NCCR, softSRrobots

    Reference

    • Detailed record: https://infoscience.epfl.ch/record/199936?ln=en
    • EPFL-ARTICLE-199936
    • doi:10.1089/soro.2014.0005
    Reference
    Read the paper
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