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- W2178011284 abstract "Probabilistic design, such as reliability-based design and robust design, offers tools for making reliable decisions with the consideration of uncertainty associated with design variables/parameters and simulation models. Since a probabilistic optimization often involves a double-loop procedure for the overall optimization and iterative probabilistic assessment, the computational demand is extremely high. In this paper, the sequential optimization and reliability assessment (SORA) is developed to improve the efficiency of probabilistic optimization. The SORA method employs a single-loop strategy with a serial of cycles of deterministic optimization and reliability assessment. In each cycle, optimization and reliability assessment are decoupled from each other; the reliability assessment is only conducted after the deterministic optimization to verify constraint feasibility under uncertainty. The key to the proposed method is to shift the boundaries of violated constraints (with low reliability) to the feasible direction based on the reliability information obtained in the previous cycle. The design is quickly improved from cycle to cycle and the computational efficiency is improved significantly. Two engineering applications, the reliability-based design for vehicle crashworthiness of side impact and the integrated reliability and robust design of a speed reducer, are presented to demonstrate the effectiveness of the SORA method." @default.
- W2178011284 created "2016-06-24" @default.
- W2178011284 creator A5017541508 @default.
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- W2178011284 date "2004-03-01" @default.
- W2178011284 modified "2023-10-14" @default.
- W2178011284 title "Sequential Optimization and Reliability Assessment Method for Efficient Probabilistic Design" @default.
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- W2178011284 doi "https://doi.org/10.1115/1.1649968" @default.
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