taptap点点手机网页

• 民用航空 • 上一篇    下一篇

多平滑指标融合的气路参数平滑评判方法研究

曹惠玲,张卓   

  1. (taptap下载安装安卓航空工程学院,天津300300)
  • 收稿日期:2014-09-12 修回日期:2014-11-17 出版日期:2016-06-22 发布日期:2016-06-06
  • 作者简介:曹惠玲(1962—),女,河北唐山人,教授,工学博士,研究方向为航空发动机性能分析与故障诊断.
  • 基金资助:

    中央高校基本科研业务费专项(ZXH2012P007)

Smoothing evaluation research of gas path parameter based on multiple smoothing indices fusion

CAO Huiling, ZHANG Zhuo   

  1. (College of Aeronautical Engineering, CAUC, Tianjin 300300, China)
  • Received:2014-09-12 Revised:2014-11-17 Online:2016-06-22 Published:2016-06-06

摘要:

航空发动机气路参数的平滑处理袁可以减少测量噪声的影响,有利于提取气路参数的变化趋势,能够对发动机性能进行准确的分析。利用平滑效果指标,通过权重分析法,构造多平滑指标融合目标函数,对航空发动机气路参数进行平滑处理。将此方法应用于航空发动机差异分析和趋势分析,通过分析并赋予权重求解目标函数,选取最优平滑方法。通过平滑效果可知此方法在差异分析、趋势分析方面处理效果明显,具有实用性。多指标融合目标函数判别法与其他平滑方法相比,推广性更好,自主选择性更大。

关键词: 气路参数, 多平滑指标融合, 权重, 平滑处理

Abstract:

The influence of measurement errors can be reduced and the changing trend of gas path parameters can be easily extracted by using smoothing method so as to analyze the engine performance. Smoothing evaluation indices and weight analysis are used to construct objective function with the fusion of multiple smoothing indices for the smoothing processing. This method is applied to difference analysis and trend analysis, getting the optimal smoothing method by setting weights and solving the objective function. Results show that this method is practical. Compared with other smoothing methods, the smoothing evaluation method based on the fusion of multiple smoothing indices has good generalization and independent selection.

Key words: gas path parameters, fusion of multiple smoothing indices, weight, smoothing

中图分类号: 

Baidu
map