The pressure distribution on the surface of interference fit of retaining ring and rotor body is calculated by both finite element method and analytical method.
本文采用有限元数值方法和理论解析方法，对护环与转子本体配合面上的压力分布做了分析计算。
2
The analytical method for predicting the hovering rotor wake is described to investigate the motion of the helical tip vortex.
用文中描述的尾流分析方法研究了螺旋尖涡的运动。
3
Based on the rotor free-wake model and the rotor trim model, an analytical method is developed for the prediction of helicopter rotor induced velocities on missile trajectory.