Effects of Structural Properties for Self-Delployable Connected-Convex Booms on Storage and Deployment Characteristics

Paper number

IAC-20,C2,2,4,x59573

Author

Mr. Akira Yoshida, Japan, Tokyo Institute of Technology

Coauthor

Prof. Hiroshi Furuya, Japan, Tokyo Institute of Technology

Year

2020

Abstract

Several deployable booms have been proposed and developed to apply to space booms, deployable membrane for de-orbit systems, solar-sail membrane, and etc.; as STEM boom, CTM boom, TRAC boom, Omega boom, and B-convex booom, etc.
To apply the deployable boom to nano satellites, storage efficiency and self-deployment torque are significant.
We have proposed self-deployable booms which have convex and corrugated cross-section configuration to improve the storage performance in this research.
To apply the self-deployable connected-convex booms to small satellites, the delopyment mechanical properties are investigated experimentally and theoretically in this paper.
The storage and deployment torque properties have been experimentally measured by connected-convex boom models which consist of PET films connected with thin polyimide tape.
The experimental results show that the storage performance are improved with respect to the conventional convex booms quantitatively.
Also, the deployment torque histories have been obtained.
The effects of forward and the reverse fold for the deployable boom on the deployment torque history have been clarified. 
To examine the deployment torque properties a theoretical analysis was performed.
The theoretical analysis indicates the effects of the cross-sectional properties of the deployable connected-convex booms and the gap length for connection tape on deployment torque.
Furthermore, the numerical analyses for deployment properties are performed to examine the experimental and the theoretical results.
Finally, the feasibility for applying self-delployable connected-convex booms to nano/small satellite are discussed.

Abstract document

IAC-20,C2,2,4,x59573.brief.pdf

Manuscript document

IAC-20,C2,2,4,x59573.pdf (🔒 authorized access only).

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