机构地区: 西北工业大学
出 处: 《机械强度》 1993年第4期10-13,52,共5页
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.
领 域: [航空宇航科学与技术] [航空宇航科学技术]