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A study of tape spring fold curvature for space deployable structures

Walker, SJI and Aglietti, GS (2007) A study of tape spring fold curvature for space deployable structures Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 221 (3). pp. 313-325.

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Tape springs, defined as thin metallic strips with an initially curved cross-section, are an attractive structural solution and hinge mechanism for small satellite deployable structures because of their low mass, low cost, and general simplicity. They have previously been used to deploy booms and array panels in various configurations that incorporate a two-dimensional deployment of the tape. However, applications currently exist that incorporate three-dimensional tape springs folds. To accurately model the deployment of an appendage mounted with tape spring hinges, it is necessary to accurately model the opening moments produced from the material strains in the tape spring fold. These moments are primarily a function of curvature. This publication uses a photographic method to analyse the curvature assumptions of two-dimensional tape spring folds and to define the curvature trends for three-dimensional tape spring folds as a basis for calculating the opening moment. It is found that although a variation in the curvature can be seen for three-dimensional tape spring folds, its effect is secondary to the tape thickness tolerance. Therefore, constant curvature models are concluded to be accurate enough for general tape fold applications. © IMechE 2007.

Item Type: Article
Divisions : Surrey research (other units)
Authors : Walker, SJI and Aglietti, GS
Date : 27 June 2007
DOI : 10.1243/09544100JAERO209
Depositing User : Symplectic Elements
Date Deposited : 14 Oct 2016 12:22
Last Modified : 24 Jan 2020 12:58

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