船舶在进出船厢运动中的附加质量的计算

采用三维有限元方法，计算船在进出船厢运动中的附加质量。文中对单圆柱体在无限域和半无限域中运动的附加质量及双圆柱体同心放置时内圆柱运动的附加质量分别进行了计算，计算值与理论值吻合很好；对船在进出船厢运动中的附加质量做了大量的计算，结果表明：随着船与船厢侧壁间距的减小，船的附加质量系数增大；随着船厢中水深的减小，船的附加质量系数增大，随着船离船厢封闭端的距离的减小，附加质量系数增大。

Calculation of added mass for ship entering and leaving a ship-box

Based on the three\|dimensional finite element method, this paper studies the calculation of added mass for the ship entering and leaving a ship\|box. The added mass for a cylinder in the infinite domain, the semi\|infinite domain and for the inner of two concentric cylinders were calculated respectively. It is shown that the calculated results agree with the theoritical results very well. Then,the added mass for a rectangular ship entering and leaving a ship\|box, was also calculated, which show that the added mass coefficient will increase with decreasing the distance between ship and sides of ship\|box, the depth of the water in the ship\|box, and the distance between the ship and the side in front of the ship\|box.