中国民航大学学报 ›› 2025, Vol. 43 ›› Issue (5): 58-63.

• 未来机场及智能装备 • 上一篇    下一篇

基于空洞卷积神经网络的随机动载荷识别

  

  1. 中国民航大学安全科学与工程学院,天津 300300
  • 收稿日期:2023-04-09 修回日期:2023-05-20 出版日期:2025-11-17 发布日期:2025-11-17
  • 作者简介:王伟(1977— ),男,河南许昌人,副教授,博士,研究方向为航空发动机控制系统适航审定
  • 基金资助:
    中央高校基本科研业务费专项(3122019163)

Random dynamic load identification based on atrous convolutional neural network

  1. College of Safety Science and Engineering, CAUC, Tianjin 300300, China
  • Received:2023-04-09 Revised:2023-05-20 Online:2025-11-17 Published:2025-11-17

摘要:

为解决随机动载荷识别精度低的问题,本文将空洞卷积神经网络(ACNN,atrous convolutional neural network)
引入随机动载荷识别研究中,提出一种扩张率为 2 的基于一维 ACNN 的随机动载荷识别方法,该方法通过
提高扩张率来增大信号感受野,进而提高载荷识别精度。 以 GARTEUR 飞机模型为研究对象进行载荷识别
验证实验,结果表明:无噪声干扰时,用本文方法识别的翼尖激励点上随机动载荷与真实载荷之间的均方
根误差为 0.990 1 N,相关系数为 0.987 4,功率谱密度曲线(PSD,power spectral density)能够较好地吻合;在
不同噪声水平干扰下,本文方法也能有效识别出随机动载荷时间序列。 本文方法具有识别精度高、抗干扰能
力强的优点。

关键词:

Abstract:

To address the issue of low accuracy in random dynamic load identification, the atrous convolutional neural network (ACNN) is introduced into the research of random dynamic load identification. A random dynamic load
identification method based on one-dimensional ACNN with a dilation rate of 2 is proposed, which increases the
signal receptive field by increasing the dilation rate, thereby improving the accuracy of load identification. The
load identification verification experiment is conducted using the GARTEUR aircraft model as the research object, and the results show that the root mean square error between the random dynamic load on the wingtip excitation point identified by the method in this article and the real load is 0.990 1 N, with a correlation coefficient
of 0.987 4, and the power spectral density (PSD) curve can match well. Under different levels of noise interference, the proposed method can effectively identify the time series of random dynamic load. The proposed
method has the advantages of high recognition accuracy and strong anti-interference ability.

Key words:

中图分类号: