A nondeterministic shock and vibration application using polynomial chaos expansions
In the current study, the generality of the key underpinnings of the Stochastic Finite Element (SFEM) method is exploited in a nonlinear shock and vibration application where parametric uncertainty enters through random variables with probabilistic descriptions assumed to be known. The system output is represented as a vector containing Shock Response Spectrum (SRS) data at a predetermined number of frequency points. In contrast to many reliability-based methods, the goal of the current approach is to provide a means to address more general (vector) output entities, to provide this output as a random process, and to assess characteristics of the response which allow one to avoid issues of statistical dependence among its vector components.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 753421
- Report Number(s):
- SAND2000-0800C; TRN: AH200018%%278
- Resource Relation:
- Conference: 8th ASCE Specialty Conference on Probabilistic Mechanics and Structural Reliability, Notre Dame, IN (US), 07/24/2000--07/26/2000; Other Information: PBD: 28 Mar 2000
- Country of Publication:
- United States
- Language:
- English
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