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Biomimetic folding of triangular deployable membranes.

Yuzhen Tang1, Paolo Beccarelli2, Hongwei Guo1

  • 1State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, People's Republic of China.

Bioinspiration & Biomimetics
|July 8, 2022
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Summary

Researchers explored biomimetic folding for triangular deployable membranes in space applications. They developed crease patterns and evaluation indices to optimize deployment efficiency for space missions.

Keywords:
biomimetic foldingdeployable membraneevaluation indicesgeometric design

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Area of Science:

  • Space Engineering
  • Materials Science
  • Biomimetics

Background:

  • Deployable membranes are crucial for space projects due to their lightweight nature, compact stowage, and scalability.
  • Biomimetic folding principles offer a promising approach for designing complex deployable structures.

Purpose of the Study:

  • To investigate biomimetic folding for designing crease patterns in triangular deployable membranes for space applications.
  • To establish evaluation indices for analyzing and optimizing membrane folding and deployment.

Main Methods:

  • The study analyzed various crease patterns, including leaf-in, leaf-out, and orthogonal designs, focusing on triangular and hexagonal units.
  • Key evaluation indices such as linear dimension ratio, deployment ratio, crease length, and junction number were established and calculated.
  • A parametric study was conducted to assess the impact of crease parameters on folding behavior and deployment efficiency.

Main Results:

  • Different crease patterns were proposed and evaluated using the established indices.
  • The relationship between crease parameters and deployment efficiency was quantified.
  • The study identified optimal crease patterns and folding parameters for specific performance requirements.

Conclusions:

  • Biomimetic folding provides a viable strategy for designing efficient triangular deployable membranes.
  • The developed evaluation indices effectively guide the selection of crease patterns and parameters for space mission requirements.
  • This research contributes to the advancement of deployable membrane technology for future space exploration.