Many sensing instruments sent into Earth orbit require cooling to extremely low temperatures. However, reliability and vibration considerations have until recently precluded the use of active refrigeration systems for spacecraft sensors. The problems of reliability and residual vibrations have been overcome, leading to the development of a practical active refrigerator, called a cryocooler, for spacecraft applications. This paper describes the development of a nonlinear, coupled fluid-structural dynamics code which has been used for the basic mechanical design of the moving mechanisms within cryocoolers.
A nonlinear, coupled fluid-structural dynamics code for cryogenic refrigerators based on the Oxford split-stirling cycle design
Ein nichtlinearer, Fluid-/Struktur-Dynamik-Code für kryogene Kühlanlagen auf Basis des Stirling-Zyklus-Konzepts mit 'Oxford Split'
1994
9 Seiten, 12 Bilder, 1 Tabelle, 5 Quellen
Conference paper
English
Hysteresis losses in near-ambient Stirling refrigerators
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