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Response characteristics of a thermal-heliotrope solar-array orientation deviceThe thermal heliotrope is a passive solar-array orientation device containing a bimetallic helix that rotates when activated by solar energy. The rate and extent of the rotation depends upon the properties of the two metals and the temperature of the helix. An energy-balance analysis is performed to determine the temperature distribution in the helix. By initially restricting the analysis, a simplified equation governing the response of the heliotrope is obtained. In order to gain insight into the response of the heliotrope, a series of experiments were performed. The results of these tests and the implications are presented.
Document ID
19720005747
Document Type
Other
Authors
Morse, F. H. (Maryland Univ. College Park, MD, United States)
Date Acquired
August 6, 2013
Publication Date
January 1, 1971
Publication Information
Publication: NASA. Goddard Space Flight Center 5th Aerospace Mech. Symp.
Subject Category
INSTRUMENTATION AND PHOTOGRAPHY
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19720005742Analytic PrimaryFifth Aerospace Mechanisms SymposiumN72-13391 04-15Analytic Primary
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