【摘要】 采用CFD/CSD双向流固耦合算法研究平板结构的气动弹性耦合特性.首先,采用CFD/CSD算法计算平板结构的颤振临界速度,并与已有文献中的实验结果进行比较验证.然后,分别对简支和固支边界条件的三维平板结构进行气动弹性特性分析,计算不同约束情况下流场分布的变化和平板结构的位移响应.同时还考虑加肋和结构材质对平板结构气动弹性特性的影响.更多还原

【Abstract】 The two-way fluid-structure coupling algorithm,i. e. the CFD/CSD algorithm,is used to study the aeroelastic coupliing characteristics of plate structures in subsonic air flow. Firstly,the flutter critical velocity of the plate structure is computed employing the CFD/CSD algorithm. The results obtained by the CFD/CSD are verified by comparing with the experiment results in the open literature. Secondly,the aeroelastic characteristics for three-dimensional plate structures with simply supported and clamped edges are analyzed. The variation of flow field distribution and the displacement responses of the plate under different restricted conditions are clacu- lated. Meanwhile,the influences of the stiffener and structural material parameters on the aeroelastic characteris- tices of the plate structure are also considered.更多还原