Reliability Analysis for Multidisciplinary Systems Involving Stationary Stochastic Processes


The response of a component in a multidisciplinary system is affected by not only the discipline to which it belongs, but also by other disciplines of the system. If any components are subject to time-dependent uncertainties, responses of all the components and the system are also time dependent. Thus, time-dependent multidisciplinary reliability analysis is required. To extend the current time-dependent reliability analysis for a single component, this work develops a time-dependent multidisciplinary reliability method for components in a multidisciplinary system under stationary stochastic processes. The method modifies the First and Second Order Reliability Methods (FORM and SORM) so that the Multidisciplinary Analysis (MDA) is incorporated while approximating the limitstate function of the component under consideration. Then Monte Carlo simulation is used to calculate the reliability without calling the original limit-state function. Two examples are used to demonstrate and evaluate the proposed method.

Meeting Name

ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference (2015: Aug. 2-5, Boston, MA)


Mechanical and Aerospace Engineering

Keywords and Phrases

Computer aided design; Design; Intelligent systems; Monte Carlo methods; Random processes; Reliability; Stochastic systems; Limit state functions; Limit-state function; Multi-disciplinary analysis; Multi-disciplinary systems; Reliability methods; Second-order reliability methods; Stationary stochastic process; Time dependent reliability analysis; Reliability analysis

International Standard Book Number (ISBN)


Document Type

Article - Conference proceedings

Document Version


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© 2015 American Society of Mechanical Engineers (ASME), All rights reserved.

Publication Date

01 Aug 2015