摘要
研究具有自旋角速度的细长弹箭在飞行时横向振动的自振特性 .利用转子动力学和有限单元的思想 ,考虑轴向连续点的陀螺效应 ,通过 L agrange方程建立自旋弹箭横向振动方程 .利用该方程 ,通过数值计算 ,可给出细长旋转弹箭飞行时的进动转速和临界转速 。
The transverse self oscillation characteristics of a spinning rocket in flight is studied. Rotor dynamics and finite element method is made use of, taking into consideration the continuous gyroscopic effect. Finite element equations of transverse vibration of the spinning rocket is presented by means of the Lagrange equation. With this equation and through numerical analysis can be obtained the precession speed, critical speed, and the relevant modes of deflection and angular vibrations.
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2001年第4期410-414,共5页
Transactions of Beijing Institute of Technology
基金
部级基金资助项目
