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Reliability model for helicopter main gearbox lubrication system using influence diagrams

机译:利用影响图的直升机主变速箱润滑系统可靠性模型

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The loss of oil from a helicopter main gearbox (MGB) leads to increased friction between components, a rise in component surface temperatures, and subsequent mechanical failure of gearbox components. A number of significant helicopter accidents have been caused due to such loss of lubrication. This paper presents a model to assess the reliability of helicopter MGB lubricating systems. Safety risk modeling was conducted for MGB oil system related accidents in order to analyse key failure mechanisms and the contributory factors. Thus, the dominant failure modes for lubrication systems and key contributing components were identified.
机译:直升机主变速箱(MGB)损失的机油会导致零件之间的摩擦增加,零件表面温度升高以及随后的变速箱零件机械故障。由于这种润滑损失,造成了许多重大的直升机事故。本文提出了一种评估直升机MGB润滑系统可靠性的模型。针对MGB石油系统相关事故进行了安全风险建模,以分析关键故障机理和影响因素。因此,确定了润滑系统和关键贡献部件的主要故障模式。

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