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Reliability Evaluation of Smart Structural Systems

[+] Author Affiliations
Maguid H. M. Hassan

Higher Technological Institute

Paper No. IMECE2005-79125, pp. 77-83; 7 pages
doi:10.1115/IMECE2005-79125
From:
  • ASME 2005 International Mechanical Engineering Congress and Exposition
  • Engineering/Technology Management
  • Orlando, Florida, USA, November 5 – 11, 2005
  • Conference Sponsors: Engineering and Technology Management Group
  • ISBN: 0-7918-4230-4 | eISBN: 0-7918-3769-6
  • Copyright © 2005 by ASME

abstract

Smart Structural Systems are defined as systems that are capable of modifying their characteristics, intentionally, to reduce the effects of external actions. Such capability is attained through the integration of several basic components. Sensors, processors and actuators are examples of such components. The reliability of such integrated systems pose a major concern hindering their practical application Recent research activities are directed toward the evaluation of such reliability-based measures to evaluate such systems. Performance measures are currently identified and employed in the comparison of potential smart systems. In this paper, a reliability assessment model for smart structural systems is proposed. The proposed reliability assessment technique comprises reliability assessment algorithms for every individual underlying system component. Failure modes are identified for each individual component. Such failure modes are further expressed in a limit state format. An overall reliability measure is then evaluated, knowing the individual reliability assessments of all underlying components. By developing suitable reliability measures for such systems, it is possible to select the most reliable and effective smart system, based on their overall reliability and performance measures.

Copyright © 2005 by ASME
Topics: Reliability

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