| 基于气动热力模型的FADEC系统FHA方法 |
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| 引用本文： | 丁水汀,邱天,刘晓锋,刘传凯,巩磊.基于气动热力模型的FADEC系统FHA方法[J].航空动力学报,2012,27(5):1185-1193. |
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| 作者姓名： | 丁水汀 邱天 刘晓锋 刘传凯 巩磊 |
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| 作者单位： | 1. 北京航空航天大学能源与动力工程学院航空发动机气动热力国家级重点实验室适航技术研究中心北京市航空器／发动机复杂系统安全性重点实验室,北京,100191
2. 北京航空航天大学交通科学与工程学院,北京,100191 |
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| 基金项目： | 教育部长江学者创新团队“航空发动机复杂系统安全性”(IRT0905); 国家自然科学基金(61104146) |
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| 摘 要： | 从适航规章对全权限数字发动机控制(full authority digital engine control,简称FADEC)系统的安全要求出发,结合功能危险分析(functional hazard assessment,简称FHA)的一般原则和FADEC系统的特点,得到了FADEC系统FHA的分析要素.根据分析要素中的工具与数据需求,将航空发动机气动热力模型用于可调放气活门(variable bleed valve,简称VBV)控制功能失效危险分析,结果表明:①该模型能够辅助确定FADEC系统功能失效的发动机影响;②FADEC系统功能危险的模型分析方法通过定量分析确定发动机影响的危险等级,为FHA提供直观的参考依据,可作为对专家经验的补充.
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| 关 键 词： | 航空发动机气动热力模型 全权限数字发动机控制系统 功能危险分析 失效 VBV(varible bleed valve)控制 |
| 收稿时间： | 2011/6/17 0:00:00 |
FHA method for FADEC system based on aero-thermodynamics model |
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| DING Shui-ting,QIU Tian,LIU Xiao-feng,LIU Chuan-kai and Gong Lei.FHA method for FADEC system based on aero-thermodynamics model[J].Journal of Aerospace Power,2012,27(5):1185-1193. |
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| Authors: | DING Shui-ting QIU Tian LIU Xiao-feng LIU Chuan-kai and Gong Lei |
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| Institution: | Beijing Key Laboratory on Safety of Integrated Aircraft and Propulsion Systems, Airworthiness Technologies Research Center, National Key Laboratory of Science and Technology on Aero-Engine Aero-thermodynamics, School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;Beijing Key Laboratory on Safety of Integrated Aircraft and Propulsion Systems, Airworthiness Technologies Research Center, National Key Laboratory of Science and Technology on Aero-Engine Aero-thermodynamics, School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;School of Transportation Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;School of Transportation Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;School of Transportation Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China |
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| Abstract: | Starting from the airworthiness regulations related to full authority digital engine control(FADEC) system,considering the general principle of functional hazard assessment(FHA) and characteristics of FADEC system,the essential points of FHA for FADEC system were drew.According to the tool and data requirements,a hazard assessment for variable bleed valve (VBV) control function was conducted by using the aero-engine aero-thermodynamics model.The results indicate that:(1) This model could identify engine effect of FADEC system function failure.(2) Model analysis method of functional hazard for FADEC system which could determine engine effect hazard level through quantitative analysis,provides visual information for the assessment and could be a supplement for expert experience. |
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| Keywords: | aero-engine aero-thermodynamics model full authority digital engine control system functional hazard assessment failure VBV(varible bleed valve) control |
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