SOLAR DIFFERENTIAL HEATING OF THIN WALL BOOMS IN NEAR EARTH ORBIT,
Abstract
Thin walled cylinders exposed to sunlight in space can develop a relatively large circumferential temperature gradient, which in turn gives rise to relatively large thermoelastic stresses in the cylinder wall. A proposed Radio Astronomy Satellite would use an extendable boom of 1000 feet in length, erected by unwinding a reel of preformed Beryllium copper tape, as an antenna. A relatively large circumferential temperature gradient will produce elongations which, acting over this 1000 foot length, can produce very large end deflections. Before any rigorous structural analysis can be undertaken, a thorough knowledge of the temperature gradients to be expected for the various configurations under consideration is necessary. This report presents the analysis and results obtained to date, of thin walled cylinders in near earth orbit.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1964
- Accession Number
- AD0622486
Entities
People
- J. E. Kummerer
Organizations
- Johns Hopkins University Applied Physics Laboratory