依据拖曳系统的耦合特性和约束条件，建立了拖曳飞行动力学和运动学方程，提出了一种基于仿真的拖曳系统飞行性能计算方法。
According to the coupling characteristics and constrained conditions of the towing system, the models of dynamics and kinematics of the towing system were built up.
并以某小型涡喷发动机为例，沿飞行轨迹计算分析了射流预冷却对发动机性能的影响。
Taking the certain small scaled turbojet as an example, the influence by mass injection and pre-cooled engine was calculated and analyzed along fly trajectory.
根据计算结果对其所处的稀薄区域和稀薄效应对磁头飞行性能的影响进行了分析和讨论。
According to the calculated results, discussions and analyses are then presented to reveal the effects of rarefied region and rarefied effect on the working performances of the magnetic head.
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