基于振动信号分析的动力调谐陀螺仪滚珠轴承故障诊断  

Fault Diagnosis of Ball Bearing of Dynamic Tuned Gyroscope Based on Vibration Signal Analysis

作　　者：蔡文迹 李醒飞[1] 鲁建宇 CAI Wenji;LI Xingfei;LU Jianyu(State Key Laboratory of Precision Measurement Technology and Instruments,Tianjin University,Tianjin 300072,China)

机构地区：[1]天津大学精密测试技术及仪器国家重点实验室,天津300072

出　　处：《传感技术学报》2021年第3期340-345,共6页Chinese Journal of Sensors and Actuators

基　　金：国家自然科学基金项目(60972129);国家重点实验室开放基金项目(pil1006)。

摘　　要：作为动力调谐陀螺仪重要支撑部件的滚珠轴承,其性能好坏直接影响到陀螺仪甚至整个惯性导航系统的正常运转,因此对其工作状态进行实时监测并作出及时准确地故障诊断具有重要现实意义。对此本文首先分析了动力调谐陀螺仪滚珠轴承产生振动时的特征频率,然后基于石英挠性加速度计和LabVIEW软件设计了振动测试实验,完成振动信号的采集、处理。针对振动信号进行频域分析和小波分析并作出故障诊断,最后对诊断结果进行验证。As an important supporting component of the dynamic tuning gyroscope,the performance of the ball bearing directly affects the normal operation of the gyroscope and even the entire inertial navigation system.Therefore,real-time monitoring of its working status and timely and accurate fault diagnosis are of great practical significance.This paper first analyzes the characteristic frequency when the ball bearing of the dynamic tuned gyroscope vibrates,and then designs the vibration test experiment based on the quartz flexible accelerometer and LabVIEW software to complete the acquisition and processing of the vibration signal.Perform frequency domain analysis and wavelet analysis on the vibration signal and make fault diagnosis,and finally verify the diagnosis results.

关 键 词：动力调谐陀螺仪 滚珠轴承 振动信号分析 故障诊断 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置]