一种直升机振动健康状态监测方法

By conducting big data analysis and statistical learning on helicopter vibration data, the vibration frequency threshold was optimized, solving the problem of inaccurate judgment of helicopter vibration health status and achieving higher monitoring accuracy and safety.

CN115358286BActive Publication Date: 2026-07-17SHAANXI QIANSHAN AVIONICS

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHAANXI QIANSHAN AVIONICS
Filing Date
2022-07-11
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, the vibration frequency threshold of helicopters is given by expert experience, which leads to inaccurate judgment of vibration health status, and may result in missed or false judgments, thus reducing the performance of helicopter health status monitoring.

Method used

Vibration data is used as a large data sample. Statistical learning methods are combined to optimize the threshold of vibration frequency points. By dividing the dataset into inherent and non-inherent vibration frequencies, abnormal vibration frequencies are extracted. Statistical methods are used to obtain vibration thresholds and optimize the helicopter health status monitoring model.

Benefits of technology

It improves the accuracy of helicopter vibration health status monitoring, reduces maintenance costs, and enhances flight safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明提供了一种直升机振动健康状态监测方法,包括提取直升机振动原始数据中振动频率数据集;振动频率数据集划分为固有振动频率数据集、非固有振动频率数据集;提取非固有振动频率数据集中的异常振动频率数据集;基于统计学方法,获取固有振动频率数据集的第一振动阈值,获取异常振动频率数据集的第二振动阈值;基于第一振动阈值和第二振动阈值,优化直升机健康状态监测模型;采用优化后直升机健康状态监测模型,对直升机新产生的振动数据进行判断,获取直升机振动健康状态。本发明设计的方法能够准确的对直升机振动健康状态进行监测,以提高直升机飞行安全的目的。
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