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Cross-Domain Tolerance Analysis for Directional Control Valves Based on Imperfect Information

机译：基于不完全信息的方向控制阀跨域公差分析

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摘要

The task of tolerance analysis usually addresses the question of the mechanical mountability of an assembly. When talking about directional control valves this viewpoint has to be extended to a cross-domain tolerance analysis; an analysis whose task is to determine the possible variation in the key product characteristics induced by a specific tolerance concept. As the available information about the noise factors to be toleranced is almost always imperfect, generalised methods for their representation and the propagation of their impact on the key product characteristics are required. In this study the capabilities and potentials of belief and plausibility measures as well as fuzzy random variables are compared to traditional worst-case and statistical tolerance analysis.
机译：公差分析的任务通常解决组件的机械安装性问题。在谈到方向控制阀时，这种观点必须扩展到跨域公差分析。一种分析，其任务是确定由特定公差概念引起的关键产品特性的可能变化。由于有关要容忍的噪声因子的可用信息几乎总是不完善，因此需要通用的表示方法及其对关键产品特性的影响的传播。在这项研究中，将信念和合理性度量以及模糊随机变量的能力和潜力与传统的最坏情况和统计​​公差分析进行了比较。

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