On the Behavior of Folded Tape-Springs

Author:

Seffen K. A.1

Affiliation:

1. Department of Mechanical Engineering, University of Manchester Institute of Science and Technology, Sackville Street, Manchester M60 1QD, UK

Abstract

Tape-springs are thin-walled beams with a curved cross section that can be elastically deformed to yield a flexible region of high curvature known as a fold. This feature is exploited in the folding and self-deployment of a number of recently proposed deployable structures. This study characterizes the quasi-static response of a folded tape-spring under a prescribed rotation and separation between its support points. It is shown that the corresponding end loads and fold shape are accurately predicted by a variational technique, and are confirmed by a finite element analysis. This information may then be used in further design of tape-spring hinge systems.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics

Reference15 articles.

1. Seffen, K. A., and Pellegrino, S., 1999, “Deployment Dynamics of Tape-Springs,” Proc. R. Soc. London, Ser. A, 455, pp. 1003–1048.

2. Seffen, K. A., 1997, Analysis of Structures Deployed by Tape-Springs, Ph.D. thesis, University of Cambridge, Cambridge, UK.

3. Seffen, K. A. and Pellegrino, S., 1997, “Deployment of a Rigid Panel by Tape-Springs,” Technical report, University of Cambridge, Department of Engineering, CUED/D-STRUCT/TR 168.

4. Seffen, K. A., Pellegrino, S., and Parks, G. T., 1998, “Deployment of a Panel by Tape-Spring Hinges,” Proceedings of IUTAM-IASS Symposium on Deployable Structures: Theory and Applications, S. Pellegrino and S. D. Guest, eds., Kluwer, The Netherlands, pp. 355–364.

5. Cambridge Consultants Ltd., 1989, “Design Study for a Mars Sailcraft,” Technical Report, Cambridge Consultants, Ltd., Q7844/JPA/Issue 1.

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