The invention discloses a simplified structure model for a ship hydroelasticity test, and a design method thereof. The design method comprises the following steps: determining a geometric scale ratioof the simplified structure model; determining corresponding parameters of the model according to the parameter information of a real ship and a similarity conversion relationship; selecting and determining a processing material of the model; carrying out simplified design according to the structural form and rigidity distribution of the real ship, the thickness of a model ship body plate and thenumber, size or form of longitudinal aggregates to make the profile rigidity distribution of the model close to a target value as much as possible; designing a balance weight and a ballast scheme of amodel ballast block according to the gravity center position and the weight distribution of the real ship to make the weight distribution, the gravity center position and the moment of inertia closeto target values as much as possible; and calculating the vibration inherent frequency of the model, comparing the relationship between the vibration inherent frequency design value of the model and the target value, and reasonably adjusting the internal structure size of the ship body and the counterweight ballast scheme if the difference exists until the vibration inherent frequency of the modelis equal to the target value.
本发明公开了一种船舶水弹性试验的简化结构模型及其设计方法,包括如下步骤:确定简化结构模型的几何缩尺比;根据实船的参数信息和相似换算关系,确定模型的相应参数;选取并确定模型的加工材料;根据实船的结构形式和刚度分布,对模型船体板材厚度以及纵向骨材数量、尺寸或骨材形式进行简化设计,使模型的剖面刚度分布尽可能接近目标值;根据实船的重心位置和重量分布,设计模型压载块的配重和压载方案,使其重量分布、重心位置和转动惯量都尽可能接近目标值;计算模型的振动固有频率,并比较模型的振动固有频率设计值与目标值的关系,如存在差异则需要对船体内部结构尺寸和配重压载方案进行合理调整,直至模型的振动固有频率等于目标值。
Simplified structure model for ship hydroelasticity test, and design method thereof
一种船舶水弹性试验的简化结构模型及其设计方法
2020-04-10
Patent
Electronic Resource
Chinese
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS |
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