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Probabilistic-based design optimization : ウィキペディア英語版 | Probabilistic-based design optimization It has been widely recognized that optimization methodologies should account for the stochastic nature of random parameters in products, systems and processes. These stochastic natures can be described by their probabilistic information. The engineering problems that must deal with uncertainty are of different types: 1) sensitivity analysis under uncertainty, 2) process capability studies, 3) reliability assessment, 4) reliability optimization, 5) process design optimization under uncertainty. The last two problems of this list can be solved with optimization methodologies based on probabilistic theory, which can be grouped into two main categories: reliability-based design optimization (RBDO) and robust design optimization (RDO). RBDO methods attempt to find the optimum design with allowance of a specific risk and target reliability level which account for the various sources of uncertainty. RDO methods primarily seek to maximize the performance and simultaneously to minimize the sensitivity of the performance with respect to random parameters.〔Dan M. Frangopol and Kurt Maute, Life-cycle reliability-based optimization of civil and aerospace structure, Computers and Structures, (2003) 81: 397–410〕 ==See also== Robust optimization
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