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

作　　者：鄢骏 鲍益东[1] 王海勇 阮华波 YAN Jun;BAO Yidong;WANG Haiyong;RUAN Huabo(Structures,Nanjing University of Aeronautics and Astronautics,Nanjing Jiangsu 210016;AECC HUNAN AVIATION POWERPLANT RESEARCH INSTITUTE,Zhuzhou Hunan 412002)

机构地区：[1]南京航空航天大学,江苏南京210016 [2]中国航发湖南动力机械研究所,湖南株洲412002

出　　处：《中国科技纵横》2024年第15期82-84,共3页China Science & Technology Overview

摘　　要：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.

关 键 词：航空发动机 外部管路 振动应力 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]