基于稀疏傅里叶变换的航空发动机振动数据快速处理方法  

Fast processing of aeroengine vibration data based on sparse Fourier transform

作　　者：郏豪 张强[1] 魏梦媛 张强波 JIA Hao;ZHANG Qiang;WEI Mengyuan;ZHANG Qiangbo

机构地区：[1]中国飞行试验研究院,陕西西安710089

出　　处：《现代机械》2025年第1期11-16,共6页Modern Machinery

摘　　要：为解决飞行试验中因试飞技术不断发展而带来的试飞周期短、数据体量大,致使传统快速傅里叶变换难以满足振动数据快速综合化处理需求的问题。本文着重以真实试飞数据作为依据,深入且系统地对传统快速傅里叶变换和稀疏傅里叶变换在振动数据处理方面展开详细比较。经过研究分析后发现,稀疏傅里叶变换在振动基频的快速处理上展现出极大的优势,其处理速度相比传统快速傅里叶变换要快10倍以上。这一研究为飞行试验中振动数据处理提供了新的思路和方法。Due to the short flight test cycle and large data volume caused by the development of flight test technology,the traditional fast Fourier transform could no longer meet the needs of rapid comprehensive processing of the vibration data.This paper focuses on the real flight test data,and carries out in-depth and systematic comparison of the traditional fast Fourier transform and the sparse Fourier transform in vibration data processing.It is found that the sparse Fourier transform shows great advantages in the fast processing of the fundamental frequency of vibration,and its processing speed is more than 10 times faster than the traditional fast Fourier transform.This research has provided new ideas and methods for vibration data processing in flight tests.

关 键 词：稀疏傅里叶变换 航空发动机 振动数据 飞行试验 

分 类 号：V231.9[航空宇航科学与技术—航空宇航推进理论与工程]