The tolerancing process impacts the product quality, the production cost and scrap rate. Tight tolerances allow to assure product performance; loose tolerances to reduce production cost. The tolerance allocation of a complex system is performed under uncertainty. In fact, the accuracy of the behaviour simulation of the system significantly affects the tolerance analysis result, and thus the tolerance allocation result. Therefore, a method is proposed to perform tolerance allocation based on the Dempster Shafer theory, Monte-Carlo simulation and genetic algorithm. The application of the proposed framework is demonstrated through a complex case study.

中文翻译：

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多物理系统行为仿真不确定性下的容差分配

公差处理会影响产品质量、生产成本和废品率。严格的公差允许确保产品性能；宽松的公差以降低生产成本。复杂系统的容差分配是在不确定性下进行的。事实上，系统行为模拟的准确性会显着影响容差分析结果，进而影响容差分配结果。为此，提出了一种基于Dempster Shafer理论、Monte-Carlo模拟和遗传算法的容差分配方法。通过一个复杂的案例研究证明了所提议框架的应用。