1998-07-13

A Strategy of System Synthesis for Developing Integrated Regenerative Life Support Systems 981719

This paper considers one of the possible approaches to the synthesis of technologies for developing future Integrated Regenerative Life Support Systems (IRLSS) for space vehicle crews.
The solution of technology synthesis task involves the following phases: (a) the efficiency model structuring for technical decision making process; (b) presentation of a discrete set of alternative technologies and their formal description; (c) the decision making task introduction.
Modified efficiency model under consideration is based on use of local efficiency criteria set, reflecting designed system and its subsystems properties, space vehicle properties for which this system is intended. For the local criteria after verification of the independence terms quantitative and qualitative efficiency factors are applied.
The qualitative efficiency factors were evaluated on the scale of order. The consideration of uncertainty in criteria values is based on a fuzzy set theory. The efficiency model allows possible expansion by additional quantitative and/or qualitative criteria if needed.
To form a discrete set of alternatives the evolutionary method of synthesis is applied based on preliminary introduction of some hypothetical basic system layout/structure. To structure the alternative technologies and to calculate the efficiency criteria values a single purpose database is developed using the Visual FoxPro database designer.
The decision making task is based on the utility function theory and solved with the help of interactive decision making support system “Alternativa”.
The following paper presents some ways of application of the proposed approach as well as some preliminary results.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 16% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Pre-Flight Analysis and Post-Flight Assessment of ISS Mission 2R

2001-01-2254

View Details

TECHNICAL PAPER

The Advanced Life Support Research and Technology Development Metric for Government Fiscal Year 2002

2003-01-2632

View Details

TECHNICAL PAPER

Summary of Resources for the International Space Station Environmental Control and Life Support System for Core Complete Modules

2004-01-2386

View Details

X