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Extravehicular Activity (EVA) Maintenance Scenarios for External Distributed Utilities Aboard Space Station Freedom
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English
Abstract
Innovative on-orbit extravehicular activity (EVA) maintenance techniques are currently being developed to effectively maintain external fluid and electrical functions on board Space Station Freedom. The fluid and electrical distribution system, spread over a distance never before experienced in a space environment, presents some unique challenges to the EVA crewmember during routine and contingency maintenance operations.
This paper describes EVA maintenance techniques for the utility distribution system (UDS) developed by flight crew systems engineers in conjunction with system design engineers at McDonnell Douglas Space Systems Company. The paper includes photographs illustrating the high-lights of suited-subject underwater testing at McDonnell Douglas' Huntington Beach facility, which demonstrated the feasibility of using cut and swage techniques for on-orbit fluid line repair. This paper briefly summarizes the status of man-working-in-space concepts as they apply to the UDS.
Authors
Citation
Reinhard, D. and Hinkle, T., "Extravehicular Activity (EVA) Maintenance Scenarios for External Distributed Utilities Aboard Space Station Freedom," SAE Technical Paper 911527, 1991, https://doi.org/10.4271/911527.Also In
References
- Space Station EVA User Interface Design Guidelines Document JSC 20527 June 1987
- Space Station Man-Systems Integration Standards NASA-STD-3000 IV 18 December 1986
- Space Station Projects Description and Requirements Document JSC 31000 3 1 November 1989
- System Description and Design Data-Extravehicular Activities NSTS 07700 XIV 29 March 1988
- Murch Keith Cost of EVA Manhour MDSSC-SSD-HB 13 March 1991
- Deventhal R.A. Faget N.M. Space Shuttle RCS Oxidizer Leak Repair for STS NASA Johnson Space Center Houston, Texas
- Anderson R. Pearson S. Drewry D. Fluid Line Development and Repair for Space Station American Society for Civil Engineering Engineering Construction and Operations in Space Conference Albuquerque, New Mexico April 1990
- Fukushima Jeff Preliminary SSF UDS Tray MM/OD Penetration Assessment for PIT Application MDSSC-SSD-HB 22 January 1991