码头前系泊船舶的附加水体质量系数  

Added mass coefficient of a moored ship

作　　者：滕斌[1] 刘昌凤[1] 张俊生[1] 杨丽民 李元音 郭士勇[1] 

机构地区：[1]大连理工大学海岸和近海工程国家重点实验室,大连116024 [2]中交第一航务勘察设计院,天津300222

出　　处：《水道港口》2011年第1期1-6,共6页Journal of Waterway and Harbor

基　　金：<港口工程荷载规范>(JTJ215-98)修订专题研究

摘　　要：船舶附加水体质量是影响系泊船舶撞击力的重要因素之一。为了制定更为合理的系泊船舶荷载设计标准,需要针对船舶的附加水体质量系数开展深入的参数研究。采用三维频域方法,分别对无限开敞水域和半无限开敞水域中不同船型进行了计算,分析了船舶尺度、水深、装载度和码头类型等因素对附加水体质量系数的影响。结果表明:船舶尺度(或装载度)越大,附加水体质量系数越大;水深越大,附加水体质量系数越小;半无限开敞水域中船舶附加水体质量系数大于无限开敞水域。运用多元回归分析方法,提出了一个码头前系泊船舶附加水体质量系数的估算公式。通过与试验结果及经验值的比较,验证了该文公式的正确性和有效性。Added mass is an important component for impact force of a moored ship.In order to establish a more reasonable load design standard for moored ships,it is necessary to perform systemic researches on added mass coefficient of a ship.Based on three dimensional frequency-domain theory,hydrodynamic problems of different types of moored ships were calculated in beam seas.The influences of those factors,such as ship size,water depth,loading condition and wharf type on added mass coefficient were analyzed.It is shown that added mass coefficient increases with ship size（loading） and decreases with water depth.It is higher in semi-infinite domain than in infinite domain.Based on regression analysis,an approximate estimate of added mass coefficient of a moored ship is presented.

关 键 词：横浪 系泊船舶 撞击力 附加水体质量系数 

分 类 号：U661.1[交通运输工程—船舶及航道工程] TV131.61[交通运输工程—船舶与海洋工程]