从流体运动微分方程组和边界条件出发,利用拉格朗日方程,建立矩形弹性壳液耦合系统的非线性振动方程组,并进行数学仿真计算,得到产生稳定的低频大幅重力波的条件及重力波和壳的幅频曲线,数值计算结果与实验现象吻合较好。
According to fluid movement differential equations and boundary conditions,using Lagrange equation,nonlinear vibration equations of the rectangular shell fluid coupled system are established.By mathematical simulation,the conditions of appearing stable low-frequency and large magnitude gravity wave and rate frequency curves of gravity wave and shell are got.The numerical results and experimental phenomena are in good agreement.