摘要
深入地研究了歼某型飞机对单发脉冲切油(防喘)的动态响应,揭示了M数大于1.4时,脉冲切油对飞机有利作战姿态的影响规律。重点是针对左发脉冲切油造成飞机向未切油发动机(保持大推力的右发)一侧急剧滚转的飞行现象,找出造成这种反常运动的原因。其方法是根据试飞现象,利用飞行力学和动力装置工作的基本原理,建立物理数学模型,通过仿真计算获得了造成飞机反常运动的作用力的位置、大小及变化规律,从而较好地解决了这一复杂的技术难题。
Dynamic response of a fighter to monomotor pulse emergency reducing fuel (anti—surge) was investigated to the full, and laws of the effect on optimum flight attitude of the aircraft was revealled with M>1.4. The investigation puts emphasis oft finding out the causes to produce the irregular motion that the aircraft with pulse emergency reducing fuel (PERF) in its left engine produces a rapid roll toward its right engine without PERF. The method of research is to set up the mathematical model in flight dynamics and engine operating condition according to the phenomenon in the flight. The positions, magnitudes and directions of the forces contributing to the irregular motion were obtained by digital simulation. And so the technical key was solved satisfactorily.
出处
《飞行力学》
CSCD
北大核心
1993年第3期78-86,共9页
Flight Dynamics
关键词
切油
防喘
反常运动
飞机
motion Emergency reducing fuel Anti—surge Irregular
