考虑弹性机翼影响的旋转颤振的动力学方程  

DYNAMIC EQUATIONS FOR WHIRL FLUTTER CONSIDERING WING ELASTICITY

作　　者：刘济科[1] 赵令诚[1] 

机构地区：[1]西北工业大学

出　　处：《机械强度》1993年第4期10-13,52,共5页Journal of Mechanical Strength

摘　　要：针对旋转颤振这一极为重要的动不稳定现象。研究了考虑机翼弹性影响的旋转颤振的动力学方程的建立方法。详细讨论了计算模型的建立以及质量矩阵、陀螺矩阵、刚度矩阵的计算,特别是广义力矩阵的计算,本文建立的方程,能够方便而有效地分析螺旋桨—发动机—机翼系统的动强度以及弹性机翼对旋转颤振的影响。An investigation was made of the derivation of dynamic equations for whirl flutter——an extremely important dynamic instability phenomenon with consideration of wing elasticity.The establishment of mathemati- cal model and the computation of mass、gyroscope、stiffness matrixes and especially generalised force matrix are dis- cussed in detail.The equations obtained in this paper make it very convenient and effective for the analysis of dy- namic strength of propeller—plant—wing system and the effects of elastic wing on whirl flutter.

关 键 词：振动 动力学 弹性 动态特性 飞机 

分 类 号：V228.5[航空宇航科学与技术—飞行器设计]