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A method for the assessment of operational severity for a high pressure turbine blade of an aero-engine

机译:一种评估航空发动机高压涡轮叶片运行严重性的方法

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This paper provides a tool for the estimation of the operational severity of a high pressure turbine blade of an aero engine. A multidisciplinary approach using aircraft/ engine performance models which provide inputs to a thermo-mechanical fatigue damage model is presented. In the analysis, account is taken of blade size, blade metal temperature distribution, relevant heat transfer coefficients and mechanical and thermal stresses. The leading edge of the blade is selected as the critical part in the estimation of damage severity for different design and operational parameters. The study also suggests a method for production of operational severity data for the prediction of maintenance intervals.
机译:本文提供了一种用于估算航空发动机高压涡轮叶片的运行严重性的工具。提出了使用飞机/发动机性能模型的多学科方法,该模型为热机械疲劳损伤模型提供了输入。在分析中,考虑了叶片尺寸,叶片金属温度分布,相关的传热系数以及机械应力和热应力。对于不同的设计和操作参数,叶片的前缘被选为评估损坏严重性的关键部分。该研究还提出了一种用于产生运营严重性数据以预测维护间隔的方法。

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