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A New Orbital Disconnect Support for Cryogen Tanks
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English
Abstract
A novel orbital disconnect support (ODS) for cryogen tanks is described which makes use of the change of length of a “shape memory alloy (SMA)” element located at the warm end of a strap-type support. At room temperature the SMA-element is at its extended length with the support strap in disconnected condition. Upon heating the SMA-element to approximately 9O°C, it contracts such that it gets in contact with the support strap and provides the strap tensioning force. During testing of a breadboard ODS a ratio of up to 6,4 between the connected and disconnted heat flux via the ODS was demonstrated.
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Citation
Seidel, A., Schwabbauer, P., Hilmer, K., Lieb, H. et al., "A New Orbital Disconnect Support for Cryogen Tanks," SAE Technical Paper 941482, 1994, https://doi.org/10.4271/941482.Also In
References
- Parmley, R. T. Kittel, P. Passive Orbital Disconnect Strut (PODSIII) Adv. Cryog. Eng. 1984 29 715