NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Extravehicular Activity System Sizing Analysis Tool (EVAS_SAT)An effort was initiated by NASA/JSC in 2001 to develop an Extravehicular Activity System Sizing Analysis Tool (EVAS_SAT) for the sizing of Extravehicular Activity System (EVAS) architecture and studies. Its intent was to support space suit development efforts and to aid in conceptual designs for future human exploration missions. Its basis was the Life Support Options Performance Program (LSOPP), a spacesuit and portable life support system (PLSS) sizing program developed for NASA/JSC circa 1990. EVAS_SAT estimates the mass, power, and volume characteristics for user-defined EVAS architectures, including Suit Systems, Airlock Systems, Tools and Translation Aids, and Vehicle Support equipment. The tool has undergone annual changes and has been updated as new data have become available. Certain sizing algorithms have been developed based on industry standards, while others are based on the LSOPP sizing routines. The sizing algorithms used by EVAS_SAT are preliminary. Because EVAS_SAT was designed for use by members of the EVA community, subsystem familiarity on the part of the intended user group and in the analysis of results is assumed. The current EVAS_SAT is operated within Microsoft Excel 2003 using a Visual Basic interface system.
Document ID
20070017428
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Brown, Cheryl B.
(Hamilton Sundstrand Corp. Houston, TX, United States)
Conger, Bruce C.
(Hamilton Sundstrand Corp. Houston, TX, United States)
Miranda, Bruno M.
(Engineering Research and Consulting, Inc. Huntsville, AL, United States)
Bue, Grant C.
(NASA Johnson Space Center Houston, TX, United States)
Rouen, Michael N.
(NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2007
Subject Category
Computer Programming And Software
Report/Patent Number
07ICES-27
Meeting Information
Meeting: 37th International Congressional Environmental Systems Meeting
Location: Chicago, IL
Country: United States
Start Date: July 9, 2007
End Date: July 12, 2007
Sponsors: Society of Automotive Engineers, Inc.
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available