Rudder flutter analysis method of missile with jet vane
-
摘要: 传统的颤振分析方法以及商业软件不能分析带有燃气舵的导弹舵面颤振.为此,提出了一个解决带有燃气舵的导弹舵面颤振分析方法.采用动态子结构方法建立带有燃气舵的导弹舵面颤振状态空间运动方程和分析方法,结构质量矩阵和刚度矩阵分成对应于广义坐标的块矩阵;可以考虑不同来流气动效应和翼-体组合对气流的影响,用非定常气动力有理函数拟合法建立时域非定常气动力求解模型.算例数值结果表明:燃气舵舵轴与空气舵舵轴刚度之间的不利耦合会让空气舵颤振速度降低.上述分析方法和计算结果为导弹设计提供参考.Abstract: Traditional flutter analysis and commercial software can not analyze rudder flutter of missile with jet vane. An approach for solving rudder flutter of missile with jet vane was presented. Dynamic sub-structure method was applied to establish dynamic formulation of rudder flutter in state space and analysis method of missile with jet vane. Structural mass matrix and stiffness matrix were partitioned according to the vectors of generalized coordinates. The aeroelastic influence of different stream and the influence of wing-body on the airstream were considered. The calculation model of unsteady aerodynamics in time-domain was based on the rational aerodynamic approximation method. Numerical results indicate that adverse stiffness coupling between jet vane shaft and rudder shaft can deteriorate the rudder flutter velocity. The analysis method and results above can supply reference for the missile design.
-
Key words:
- aeroelasticity /
- flutter /
- jet vane /
- rudder /
- dynamic sub-structure
-
[1] Lauzon M.5DOF dynamic loads on a jet vane .AlAA-90-2382,1990 [2] 刘志珩.燃气舵的气动设计[J].战术导弹技术,1983(2):1-7 Liu Zhiheng.Aerodynamics design of jet vane[J].Tactics Missile Technology ,1983(2):1-7(in Chinese) [3] 王文亮,杜作润.结构振动与动态子结构方法[M].上海:复旦大学出版社,1985 Wang Wenliang,Du Zuorun.Structural vibration and dynamic sub-structure method[M].Shanghai:Fudan University Press,1985(in Chinese) [4] 王永岩.动态子结构方法理论与应用[M].北京:科学出版社,1999 Wang Yongyan.The theory and application of dynamic sub-structure method[M].Beijing:Science Press,1999(in Chinese) [5] Facciano A B,Seybold K G,Westberry-Kutz T L,et al.Evolved seasparrow missile jet vane control system prototype hardware development[J].Journal of Spacecraft and Rockets,2002,39(4) : 522-531 [6] 管德.非定常空气动力计算[M].北京:北京航空航天大学出版社,1991 Guan De.Unsteady aerodynamics calculation[M].Beijing:Beijing University of Aeronautics and Astronautics Press,1991(in Chinese) [7] 余超志.导弹概论[M].北京:北京工业学院出版社,1986 Yu Chaozhi.Introductions to missiles[M].Beijing:Beijing Industry Institute Press,1986(in Chinese)
点击查看大图
计量
- 文章访问数: 4587
- HTML全文浏览量: 304
- PDF下载量: 1703
- 被引次数: 0