【摘要】 使用动网格技术耦合结构模型和气动模型,利用逐次迭代法计算钻石背弹翼的气动弹性变形.使用模态法构造结构模型,求解N-S方程计算气动力.计算了不同刚度弹翼的气动弹性变形以及变形对气动特性的影响并与实验结果对比.结果表明:钻石背弹翼的气动弹性变形量越大,其法向力越小;柔性钻石背弹翼小直径炸弹的法向力大小以及随攻角变化趋势与计算风洞实验结果接近;钻石背弹翼两侧非对称变形会引起滚转力矩,并且滚转力矩随攻角增大而增大.更多还原

【Abstract】 The static aeroelastic behavior of the diamond back wing is studied using a computational approach.In order to interface a structural model with a Navier-Stokes fluid model,dynamics mesh technology was used.Solutions were obtained for three flexible wings.The result indicates that the deflection reduces the normal force of flexible wing.The normal force of flexible diamond back wing is close to experimental datum.Unsymmetrical deformation of diamond back wing would induce roll moment and it would increased proportionally with the angle of attack.更多还原