Then we analyzed the force acting on the hull during ship launching process, and established the ship launching model equation in mathematics at different stages.
然后对船舶下水过程中船体受力进行分析，建立不同阶段的船舶下水运动数学模型方程。
2
A practical model has been presented to analyze the response of shiphull to underwater shock according to DAA1 approximation.
根据DAA1近似建立了一种简单实用的用于分析船板水下冲击响应模型。
3
The feature of product model on hull structure was studied, and combined with modern ship building pattern, the establish method of ship digital model was put forward based on OOP and modularization.