Full Content is available to subscribers

Subscribe/Learn More  >

A Framework for Early Assessment of Functional Failures to Aid in PHM Design

[+] Author Affiliations
Scott Kramer, Irem Tumer

Oregon State University, Corvallis, OR

Paper No. DETC2009-87071, pp. 1277-1286; 10 pages
  • ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 2: 29th Computers and Information in Engineering Conference, Parts A and B
  • San Diego, California, USA, August 30–September 2, 2009
  • Conference Sponsors: Design Engineering Division and Computers in Engineering Division
  • ISBN: 978-0-7918-4899-9 | eISBN: 978-0-7918-3856-3
  • Copyright © 2009 by ASME


Human artifacts have evolved into incredibly complex systems that rely on both hardware and software to function dependably with limited or no human operator control. As the monetary and human consequences for failure climb with technological progress, Prognostic and Health Management (PHM) systems are developed to help manage, mitigate, detect, and respond to failures. These PHM systems have become as integral and as important as any other subsystem in a complex machine. Methods have been developed to analyze and incorporate risk and reliability in the early stage decision making processes of complex system design. These methods, however, treat the development and capabilities of PHM in the conceptual stage of system design in a peripheral manner at best. The importance of PHM consideration early in system design is significant. The structure of PHM, one of the most complex of the subsystems, can begin to take shape. Design modifications that must be made in light of PHM limitations should be pushed to the earliest stage of design possible, where costs of changes are minimized. In this paper, several risk and reliability based design techniques are discussed in this context. In particular Function Failure Identification Propagation framework (FFIP) provides a systematic process to identify potential failure points and their resulting functional losses. FFIP is selected in this paper as fitting early stage PHM development very well. However, improvements are proposed to the existing FFIP process to better address PHM design needs during the conceptual design stage of a complex system. This paper presents an improved method, which is then applied to a liquid fueled rocket engine architecture. Future work, including using the information gathered here to start the conceptual design of the PHM system, is also discussed.

Copyright © 2009 by ASME
Topics: Design , Failure



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In