共轴式直升机自转下滑着陆飞行轨迹近似计算

介绍了直升机自转下滑的概念，对自转下滑着陆过程中的能量转换进行了分析，以能量法计算为基础。根据共轴式直升机的特点，介绍了共轴式直升机诱导功率的计算方法，引入了计算自转下滑着陆轨迹的控制模型，根据该控制模型，用数值计算得出了某轻型共轴式直升机的自转下滑着陆轨迹，其结果可为飞行员实施自转着陆提供参考。

Autorotation Flight Path Calculation of a Coaxial Helicopter

This article is introduced the concept of helicopter autorotation and analyzed the energy conversion during autorotation landing. On the basis of energy, a way of calculating the induced power of a coaxial helicopter is addressed, and a control model for the calculation of autorotation landing path is also discussed.According to this model, the autorotation landing path of a certain light coaxial helicopter is calculated by the method with the use of numerical integral calculation.