| 鲁劲松1，张天宏2.商用涡扇发动机推力控制故障处置功能解析[J].航空发动机,2022,48(1):1-5 |
| Analysis of Commercial Turbofan Engine Thrust Control Malfunction Accommodation |
| DOI： |
| Key Words:thrust control malfunction accommodation safety system architecture commercial turbofan engine |
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| Abstract:According to the airworthiness requirements of power plant for transport aircraft，the original verification method to show the design compliance through safety analysis and application for exemption had been proved to be insufficient by engineering research and aircraft operation experience. The above airworthiness requirements stipulated that it must be confirmed that any single failure or malfunction or probable combination of failures would not endanger the safe flight of the aircraft. In order to ensure the safety of aircraft flight，the Thrust Control Malfunction Accommodation（TCMA）system could be added. Taking the GEnx engine TCMA system equipped in B787 aircraft as the research object，the system source of safety requirements，compliance verification method and its evolution，TCM events hazard，TCMA system architecture and system functions were studied and analyzed by system engineering method，including event detection，accommodation of logic，activation function monitoring and internal self inspection BIT. The analysis results show that TCMA system is an integrated intelligent control system，which can automatically handle and ensure the flight safety of aircraft without the intervention of aircraft crew after TCM events. |
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