| 降落伞开伞高度对开伞动载影响分析 |
| |
| 引用本文： | 龚文轩.降落伞开伞高度对开伞动载影响分析[J].南京航空航天大学学报,1996,28(3):337-343. |
| |
| 作者姓名： | 龚文轩 |
| |
| 作者单位： | 南京航空航天大学飞行器系 |
| |
| 摘 要： | 分析了救生－１０型伞开伞动载随开伞高度增加而明显增大的原因。研究结果表明，在充气过程中，降落伞阻力特征随充气时间变化的曲线斜率随开伞高度增加而明显增大。为了降低降落伞高空开伞动载，必须控制降落伞的张开速率，实现最佳的充气过程
|
| 关 键 词： | 降落伞 动载荷 伞衣 开伞动载 附加质量 开伞高度 |
Analysis of Aeroelastic Stability of Rotor Blades in Forward Flight |
| |
| Yu,Lin.Analysis of Aeroelastic Stability of Rotor Blades in Forward Flight[J].Journal of Nanjing University of Aeronautics & Astronautics,1996,28(3):337-343. |
| |
| Authors: | Yu Lin |
| |
| Abstract: | The aeroelastic stability of coupled flap lag torsion motion of rotor blades in forword flight is studied.Unsteady aerodynamic loads are considered and the effects of reversed flow are included.The coupled linear partial differential equations with periodic coefficients are derived using the Newton method.The spetial dependence of the partial differential equations is discrilized using the Galerkin finite element method and the periodic coefficients in the equations is treated by applying Hsu approximation.Finally the aeroelastic stability is determined by the eiqenvalue analysis. |
| |
| Keywords: | rotors finite elements forward filght state coupled flap lag torsion periodic coefficients aeroelastic stability |
| 本文献已被 CNKI 维普 等数据库收录！ |
