Abstract
Anadaptivereliability estimationtechniqueforthree-dimensional trussesused inspaceexploration applications is proposed. Both component-level and system-level reliability issues are addressed. For individual member-level performance criteria, efe cient analytical methods are implemented for reliability estimation. Multiple potential failure paths are considered for system-level performance, and a hybrid adaptive sampling technique is proposed by combining the best features of analytical and sampling methods. A signie cant failure path is enumerated using analytical reliability estimation and branch and bound search. An adaptive importance sampling method is used to identify other signie cant failure paths. The proposed methodology is illustrated for application to a simplie ed solar array support truss, using a commercial e nite element code.
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