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某航空发动机典型外部管路振动应力分析与验证

Analysis and Verification of Vibration Stress in Typical External Pipelines of an Aircraft Engine

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航空发动机外部管路是影响发动机使用可靠性的重要因素之一.为检测某航空发动机典型外部管路振动应力是否满足要求,本文利用有限元分析方法,分析计算典型管路的固有频率和振动应力分布.同时,结合该发动机台架试验测得的实际振动应力,根据管路振动疲劳试验结果,验证了典型外部管路满足可靠性要求.
The external piping of aircraft engines is one of the important factors affecting the reliability of engine operation.To test whether the vibration stress of a typical external pipeline of an aircraft engine meets the requirements,finite element analysis method was used to analyze and calculate the natural frequency and vibration stress distribution of the typical pipeline.At the same time,combined with the actual vibration stress measured by the engine bench test,the reliability requirements of the typical external pipeline were verified based on the results of the pipeline vibration fatigue test.

aircraft enginesexternal pipingvibration stress

鄢骏、鲍益东、王海勇、阮华波

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南京航空航天大学,江苏南京 210016

中国航发湖南动力机械研究所,湖南株洲 412002

航空发动机 外部管路 振动应力

2024

中国科技纵横
中国民营科技促进会

中国科技纵横

影响因子:0.102
ISSN:1671-2064
年,卷(期):2024.(15)
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