刚性边界对矩形板在静水中的频率影响

he natural frequency of rectangular plates coupled with fluid is studied in this paper. This case has been extensively studied in industries such as aerospace, nuclear and naval. The mathematical model for plate is determined by classical plate bending theory. The velocity potential and Bernoulli's equation are adopted to express the fluid pressure acting on the plate, fluid pressure is reflected in the added mass term. The mass and stiffness matrices of fluid-structure interaction equation are then determined by finite element method, nature frequencies obtained by eigenvalue. The results are in close agreement with both experimental results and theoretical results using other analytical approaches.?????