基于徑向基神經(jīng)網(wǎng)絡(luò )的航空發(fā)動(dòng)機氣路故障診斷

首頁(yè) > 過(guò)刊瀏覽>2016年第24卷第7期 >76-81

基于徑向基神經(jīng)網(wǎng)絡(luò )的航空發(fā)動(dòng)機氣路故障診斷
DOI:
                        
                    
CSTR:
                        [cstr]
                    
作者:
                        
                        
                    
作者單位:(中國民航飛行學(xué)院 航空工程學(xué)院,四川 廣漢 618307)
作者簡(jiǎn)介:趙 軍(1980-),男,安徽淮北人,高級工程師,博士,主要從事的研究方向為航空發(fā)動(dòng)機故障診斷研究。 [FQ)]
通訊作者:
中圖分類(lèi)號:
基金項目:國家自然科學(xué)基金(51306201);四川省教育廳自然科學(xué)項目(16ZB0035);中國民用航空飛行學(xué)院科學(xué)研究基金(J2014-38); 中國民用航空飛行學(xué)院科學(xué)研究基金(J2015-28)。

Diagnosis of Aero-engine Gas Path Fault Based on Radial-Basis Function Neural Network

Author:

Affiliation:

( Aviation Engineering Institute,Civil Aviation Flight University of China,Guanghan 618307,China)

Fund Project:

摘要

圖/表

訪(fǎng)問(wèn)統計

參考文獻

相似文獻

引證文獻

資源附件

文章評論

摘要:

基于徑向基神經(jīng)網(wǎng)絡(luò )對民用高涵道比航空發(fā)動(dòng)機風(fēng)扇、增壓級、高壓壓氣機、高壓渦輪、低壓渦輪5大氣路部件的效率降低故障進(jìn)行診斷；采用Gasturb進(jìn)行故障訓練樣本和測試樣本庫的生成,診斷結果顯示,采用徑向基神經(jīng)網(wǎng)絡(luò )進(jìn)行航空發(fā)動(dòng)機氣路故障診斷的計算時(shí)間短、精度較高,不僅能定性的定位故障部位,而且在大多數情況下可以定量的給出該部件的性能衰退程度；某些情況下診斷結果與測試樣本不盡一致,但都是方程的合理解,這是因為航空發(fā)動(dòng)機的數學(xué)模型是一個(gè)多解的復雜方程,一個(gè)總性能的衰減對應著(zhù)多組部件性能衰退的組合；隨噪聲幅值加大,診斷精度變差,同時(shí)研究發(fā)現診斷精度受噪聲影響的敏感系數在不同的噪聲幅值水平下是不同的。

Abstract:

Fault diagnosis of five gas path parts such as fan, booster, high-pressure compressor(HPC), high-pressure turbine(HPT), low-pressure turbine(LPT)'s efficiency degradation have been conducted based on Radial-Basis Function(RBF) neural network. The training and testing samples have been generated by Gasturb software. Diagnose result showed RBF neural network has advantage of less-time-costing and high-precision. RBF neural network can not merely isolate the fault parts, also it can determinate the degradation of components performance. In some instances, the diagnostics result doesn't agree with testing sample, but it also is reasonable solution, because the mathematical model of aero-engine is so complicated that the mathematical equation have more than one reasonable solutions. A degradation of gross performance may be caused by several combinations of components performance degradation. With increasing amplitude of noise, precision of diagnostics became worse. Sensitivity coefficient of diagnostics-precision corrupted by noise is variable with different amplitude of noise.

參考文獻

相似文獻

引證文獻

引用本文

趙軍,侯寬新,賴(lài)安卿.基于徑向基神經(jīng)網(wǎng)絡(luò )的航空發(fā)動(dòng)機氣路故障診斷計算機測量與控制[J].,2016,24(7):76-81.

復制

文章指標

點(diǎn)擊次數:
下載次數:
HTML閱讀次數:
引用次數:

歷史

收稿日期:2016-01-18
最后修改日期:2016-02-24
錄用日期:
在線(xiàn)發(fā)布日期: 2016-08-09
出版日期:

国产欧美精品一区二区,中文字幕专区在线亚洲,国产精品美女网站在线观看,艾秋果冻传媒2021精品,在线免费一区二区,久久久久久青草大香综合精品,日韩美aaa特级毛片,欧美成人精品午夜免费影视

引用本文

分享

文章指標

歷史

文章二維碼