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基于主成分分析的航空发动机性能综合评估
引用本文:袁忠大,符双学,王大伟. 基于主成分分析的航空发动机性能综合评估[J]. 航空计算技术, 2016, 0(5). DOI: 10.3969/j.issn.1671-654X.2016.05.023
作者姓名:袁忠大  符双学  王大伟
作者单位:1. 广州民航职业技术学院飞机维修工程学院,广东广州,510403;2. 天津市民用航空器适航与维修重点实验室,天津,300300
基金项目:广东省高等学校优秀青年教师培养计划项目资助(YQ2014178)
摘    要:引入主成分、相关系数矩阵、主成分贡献率及累计贡献率等概念,得出影响航空发动机性能的各个主成分,采用基于主成分分析的综合评估方法对发动机性能进行评估。与单参数性能评估方法相比,多参数性能综合评估方法更加客观有效,在对发动机进行性能评估时大大减少了出错的概率,并指出航空发动机多参数性能综合评估在工程应用的局限。

关 键 词:航空发动机  性能综合评估  多参数评估  主成分分析

Performance Synthetic Estimation of Aero-engine Based on P irnciple Component Analysis
Abstract:In the projects of aero-engine ,principal component analysis method is used to estimate the per -formance of aero-engine ,by bringing some definitions such as principal component ,relevance coefficient matrix,contribution quotiety of principal component ,accumulative contributionquotiety ,etc,to get every principal component which influent the performance of aero-engine .Compared with single-parameter es-timation method ,there is little error with multi-parameters analysis method .And at the same time ,multi-parameters analysis method include with single-parameter estimation method .It can also put every valu-able parameter together ,not like single-parameter one just take one parameter into account ,for example , people only take EGT or FF into consideration when they use single-parameter estimation method to esti-mate the performance of aero-engine.Of course,with multi-parameters analysis method ,aero-engine en-gineers can do their jobs more accurately .With the development of engineering technique ,multi-parame-ters estimation method will substitute for single -parameter estimation method to assess the performance of aero-engine in the performance synthetic estimation and fault diagnosis projects .
Keywords:aero-engine  performance synthetic estimation  multi-parameters estimation  principle com-ponent analysis
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