一种涡扇发动机喘振信号判定方法

李小彪; 余海生; 孙健国; 朱艳

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一种涡扇发动机喘振信号判定方法
李小彪^1,2, 余海生², 孙健国¹, 朱艳³
1.南京航空航天大学能源与动力学院;2.北京动力机械研究所;3.国家林业局规划设计院

摘要:

针对涡扇发动机工作特点,设计了一种发动机喘振信号判定方法。以大量发动机试车数据和飞行试验数据为依据,采用一种新的判别方法来判定发动机工作状态。结合飞行器的综合控制系统,可以以最小的代价来实现发动机退出喘振工况。该方法充分考虑了工程应用的特点,具有很低的漏报率和虚报率。发动机地面试验验证和飞行器的飞行试验验证结果表明,该方法工作可靠。

关键词: 涡轮风扇发动机发动机控制喘振自动控制

DOI：

分类号:V235.13

基金项目:

A surge signal judge method for turbofan engine

LI Xiao-biao^1,2, YU Hai-sheng², SUN Jian-guo¹, ZHU Yan³

1.Coll. of Energy and Power, Nanjing Univ. of Aeronautics and Astronautics, Nanjing 210016,China;2.Beijing Power Machinery Research Inst, Beijing 100074,China;3.Academy of Forest Inventory and Planning, State Forestry Administration, Beijing 100714,China

Abstract:

Aimed at special characteristic of turbofan engine , a surge signal judge method has been designed . Based on the test data from engine test-bed and flight-test, a special judge method for surge status has been used. Combined with aerocraft integration control system , this method can be used to exceed surge status by the minimum pricement. It has such feature as easy for use, and the fail-to-report-rating and decreased false-report-rating.The test results both from test-bed and flight test have shown that the method is reliable on operation.

Key words: Turbofan engine Engine control Surge Automatic control