The analysis shows that it is the most difficult to satisfy the similarity of the natural frequency of model to that of original shape,but the similarity is very important to the dynamic similarity of model to original shape.

• 分析发现；在海洋平台相似模型设计中；模型与原形的固有频率相似是最难以满足的相似条件；但它对动力相似又至关重要.