摘要
首先研究了热效应对壁板结构动力学特性的影响.将基于超音速活塞理论的非定常气动力模型与壁板的结构动力学方程相结合,得到了热壁板的颤振方程.利用p-k法进行了热壁板的颤振计算,讨论了气流偏角对颤振速度的影响.数值结果表明,热效应对壁板的固有特性有较大影响,进而影响壁板的颤振特性.
The thermal effects on the kinetics of panel structure were studied. Combining the unsteady aerody- namic model based on sunpersoin piston theory with structural dynamics equation,the flutter equation of thermal panel was obtained. The flutter analysis on thermal panel was carried out by P-K method,and the trend of flow angle on the flutter velocity was discussed. The numerical results show that thermal effect has a great impact on the inherent characteristics of panel,thereby affecting the panel’s flutter characteristic.
出处
《动力学与控制学报》
2012年第1期67-70,共4页
Journal of Dynamics and Control
基金
国家自然科学基金资助项目(10972100)~~
