[author_cn_name].[cn_title][J].空军工程大学学报:自然科学版,[year_id],[volume]([issue]):[start_page]-[end_page] 性能衰退对发动机控制计划拐点的影响- Influence of Aero Engine Performance Degradation over Control Plan Inflection Point
文章摘要
张斯睿, 于锦禄, 尉洋, 陈卫, 张小博, 王志多.性能衰退对发动机控制计划拐点的影响[J].空军工程大学学报:自然科学版,2022,23(1):70-78
性能衰退对发动机控制计划拐点的影响
Influence of Aero Engine Performance Degradation over Control Plan Inflection Point
  
DOI:
中文关键词: 航空发动机  性能衰退  粒子群算法  部件特性修正  控制计划拐点
英文关键词: aero-engine  performance degradation  particle swarm algorithm  component characteristics  control plan inflection point
基金项目:
作者单位
张斯睿, 于锦禄, 尉洋, 陈卫, 张小博, 王志多 空军工程大学航空工程学院西安710038 
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中文摘要:
      在双转子涡轮风扇发动机的使用过程中,发动机控制计划拐点可能发生改变,这一改变会对发动机性能产生影响。为研究航空发动机性能衰退后对发动机控制计划拐点的影响,采用部件特性修正航空发动机部件级模型的方法,应用发动机大修厂出厂前和维修前试车数据对发动机部件级模型进行修正;构建个性化单台发动机衰退后模型,分析了控制计划拐点提前及主要部件衰退对发动机性能的影响。对发动机部件性能衰退情况进行研究,分析了排气温度的变化情况,发现随着涡轮风扇发动机部件的衰退,排气温度升高,将导致发动机控制计划拐点前移。结果表明,发动机性能衰退后,发动机控制计划的拐点会大幅度前移;控制计划的拐点前移将导致起飞时发动机最大状态的推力损失量增大到未衰退时的3.65%;相较于发动机性能衰退但不考虑控制计划变化,推力降低0.5%。
英文摘要:
      In the process of operation of a twin rotor turbofan engine, if inflection point of engine control plan changes, this may affect the engine performance. In order to study the influence of aero engine performance degradation on the inflection point of engine control plan, a component level model is modified by component characteristics. A personalized degradation model of an aero engine is built, and the effects of control plan inflection point advance and major component decline on engine performance are analyzed. The decline of engine components is studied, and the change of exhaust temperature is analyzed. The research result shows that with the deterioration of turbofan engine components, the exhaust temperature increases, and this makes the inflection point of engine control plan moving forward. And, the inflection point of engine control plan moves forward greatly after the engine performance declines. The forward movement of the inflection point of the control plan causes the thrust loss of the engine at the maximum state to reach 3.65% of the total state of the engine when the engine is not in recession. The thrust is reduced by 0.5% compared with engine degradation on no consideration of the change of control plan.
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