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Sensitivity Analysis for Safety Design Verification of General Aviation Reciprocating Aircraft Engine

机译：通用航空往复式飞机发动机安全设计验证的敏感性分析

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摘要

This paper presents an application of global sensitivity analysis for system safety analysis and airworthiness compliance of reciprocating aircraft engine.A deterministic engine thermodynamics model was developed and samples were generated by Monte Carlo method for the parameters used in engine model. Then, importance indices were determined by global sensitivity analysis.Eventually, design was improved to satisfy the airworthiness requirements. The results reveal that, by using global sensitivity analysis, the parameters could be ranked with respect to their importance, including first order indices and total sensitivity indices.By reducing the uncertainty of parameters and adjusting the range of inputs, safety criteria would be satisfied.
机译：本文介绍了全局灵敏度分析在往复式飞机发动机系统安全性分析和适航合规性分析中的应用。建立了确定性发​​动机热力学模型，并通过蒙特卡洛方法生成了用于发动机模型的参数样本。然后，通过全局敏感性分析确定重要性指标。最终，对设计进行了改进以满足适航要求。结果表明，通过全局敏感性分析，可以对参数的重要性进行排序，包括一阶指标和总灵敏度指标。通过减少参数的不确定性和调整输入范围，可以满足安全标准。

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