By Topic

Computer-aided identification of system vulnerabilities and safeguards during conceptual design

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Malin, J.T. ; NASA Johnson Space Center, Houston, TX, USA ; Throop, D. ; Fleming, L. ; Flores, L.

This work presents an approach to helping engineers to begin to address safety risks and to capture information during conceptual design, for use in early hazard analysis. Complex system accidents are hard to understand when they happen and hard to identify before they happen. Our goal is to aid early identification of this type of potential accident. We describe progress in developing a prototype hazard identification tool to help engineers capture design features of systems and components. We describe terminology for classifying and describing system functions, problems, vulnerabilities and safeguards. This terminology can be applied to hardware, software and human factors. Conceptual design information is mapped to a library of component models, to support generation and simulation of system accident scenarios. We describe a strategy for identifying potential system accident scenarios, based on an analysis of types of sequences of events in system accidents. We describe tools for scripting scenarios and mapping to a hybrid simulator. The generic component library of the simulator is used to construct component-connection models whose behavior can include a broad variety of types of performance problems and hazards. We illustrate the strategy with a design case with a biological water processing system.

Published in:

Aerospace Conference, 2004. Proceedings. 2004 IEEE  (Volume:6 )

Date of Conference:

6-13 March 2004