基于声信号的故障检测方法在运载火箭上的应用  

Application of fault detection method based on acoustic signal in launch vehicle

作　　者：刘育玮 张航 张振臻 杨述明[1] 程玉强[1] LIU Yuwei;ZHANG Hang;ZHENG Zhenzhen;YANG Shuming;CHENG Yuqiang(College of Aerospace Science and Engineering,National University of Defense Technology,Changsha 410008,China;Xi'an Aerospace Propulsion Institute,Xi'an 710100,China)

机构地区：[1]国防科技大学空天科学学院,湖南长沙410008 [2]西安航天动力研究所,陕西西安710100

出　　处：《火箭推进》2021年第3期1-7,共7页Journal of Rocket Propulsion

基　　金：国家自然科学基金(51206181)。

摘　　要：基于声信号的故障检测可以通过非接触式的传感器采集部件工作时的声音信号,经过处理,声信号可以有效的表征部件的工作状态,进而实现故障检测。随着声信号在设备故障检测方面的应用日益成熟,声信号开始用于对火箭的发动机和其他部件的故障检测,并已经取得了一些研究成果。概述了基于声学信号的故障检测的一般方法过程,分析了基于声信号的故障检测方法在运载火箭健康状态监控领域的应用现状,最后对该领域未来的发展进行了展望。The fault detection based on acoustic signal can collect the sound signal of working components through the non-contact sensor.Through the signal acquisition and signal processing,the acoustic signal can effectively characterize the working status of components,and then realize the fault detection.With the continuous development of acoustic signals in equipment fault detection and diagnosis,the acoustic signal has begun to be used for rocket fault detection to detect the state of rocket engines and other components,and some research results have been achieved.This paper summarizes the general method of fault detection based on acoustic signal,analyzes the application status of fault detection method based on acoustic signal in the field of launch vehicle health monitoring,reviews the related technologies of fault detection method based on acoustic signal in the field of rocket health monitoring,and finally looks forward to the main development trend.

关 键 词：声学信号 信号处理 故障检测 运载火箭 健康监控 

分 类 号：V431[航空宇航科学与技术—航空宇航推进理论与工程]