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Increasing the Reliability of High Redundancy Actuators by Using Elements in Series and Parallel

机译:通过串联和并联使用元素来提高高冗余执行器的可靠性

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A high redundancy actuator (HRA) is composed of a high number of actuation elements, increasing both the travel and the force above the capability of an individual element. This provides inherent fault tolerance: if one of the elements fails, the capabilities of the actuator may be reduced, but it does not become dysfunctional. This paper analyses the likelihood of reductions in capabilities. The actuator is considered as a multi-state system, and the approach for k-out-of-n:G systems can be extended to cover the case of the HRA. The result is a probability distribution that quantifies the capability of the HRA. By comparing the distribution for different configurations, it is possible to identify the optimal configuration of an HRA for a given situation.
机译:高冗余执行器(HRA)由大量的执行元件组成,使行程和作用力均超过单个元件的能力。这提供了固有的容错能力:如果其中一个元件发生故障,则执行器的功能可能会降低,但不会失灵。本文分析了能力降低的可能性。执行器被认为是一种多状态系统,并且可以扩展n:G以外的k:G系统的方法以涵盖HRA的情况。结果是量化了HRA能力的概率分布。通过比较不同配置的分布,可以确定给定情况下HRA的最佳配置。

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