This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Mathematical Analysis of Space Radiator Segmenting for Increased Reliability and Reduced Mass
ISSN: 0148-7191, e-ISSN: 2688-3627
Published July 09, 2001 by SAE International in United States
Annotation ability available
Spacecraft for long duration deep space missions will need to be designed to survive micrometeoroid bombardment of their surfaces some of which may actually be punctured. To avoid loss of the entire mission the damage due to such punctures must be limited to small, localized areas. This is especially true for power system radiators, which necessarily feature large surface areas to reject heat at relatively low temperature to the space environment by thermal radiation. It may be intuitively obvious, that if a space radiator is composed of a large number of independently operating segments, such as heat pipes, a random micrometeoroid puncture will result only in the loss of the punctured segment, and not the entire radiator. Due to the redundancy achieved by independently operating segments, the wall thickness and consequently the weight of such segments can be drastically reduced. Probability theory is used to estimate the magnitude of such weight reductions as the number of segments is increased. An analysis of relevant parameter values required for minimum mass segmented radiators is also included.
CitationJuhasz, A., "Mathematical Analysis of Space Radiator Segmenting for Increased Reliability and Reduced Mass," SAE Technical Paper 2001-01-2340, 2001, https://doi.org/10.4271/2001-01-2340.
- English, R.E. Guentert, D.C. 1961 Segmenting Radiators for Meteoroid Protection ARS Journal August 1961
- Juhasz, A.J. 1998 Design Considerations for Lightweight Space Radiators Based on Fabrication and Test Experience with a Carbon-Carbon Composite Prototype Heat Pipe. October 1998
- Juhasz, A.J. El-Genk, M.S. 1993 Harper, W.B. “Closed Brayton Cycle Power System with a High Temperature Pellet Bed Reactor Heat Source for NEP Applications,” Proc. of the 10 th Symposium on Space Nuclear Power and Propulsion, AIP 271 2 AIP New York 1993 1055 1064
- Summers, J.L. Charters, A.C. 1959 High-Speed Impact of Metal Projectiles in Targets of Various Materials Proc. Third Symp. On Hypervelocity Impact Vol. 1 Armour Res. Foundation of IIT Chicago Feb. 1959
- Whipple, F.L. 1958 The Meteorite Risk to Space Vehicles 8 th Internat. Astronautical Congress Springer Verlag 1958 418 428