As the world of transportation keeps moving toward greater electrification, the main design objectives in terms of power density and efficiency of system components are becoming increasingly important. Meanwhile, transportation applications are also very safety critical. The extra stresses being seen by important components, such as electrical machines (EMs) and their insulation systems, to achieve the required performances, are accelerating the degradation of components, making them less reliable and shorting their lives. In general, lifetime consumption and degradation of components, such as for insulation systems of EMs, is still assessed through statistical methods (i.e., recording the number of imposed cycles until failure of a built prototype). This is a very timeconsuming and expensive process. In the mobile applications, such assessments can be the major bottleneck in the development timeline of an electrical product, especially for certification.

中文翻译：

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面向可靠性的电机设计：电机绝缘系统的设计过程必须不断发展

随着交通运输世界的电气化程度不断提高，有关功率密度和系统组件效率的主要设计目标变得越来越重要。同时，运输应用也非常安全。重要组件（例如电机（EM）及其绝缘系统）所承受的额外应力会达到所需的性能，加速了组件的退化，使其可靠性降低并缩短了使用寿命。通常，仍然可以通过统计方法（例如，记录直到构建的原型失效为止所施加的循环次数）来评估部件的寿命消耗和部件退化，例如EM的绝缘系统。这是一个非常耗时且昂贵的过程。在移动应用中