全回转起重船吊索动力荷载及其对浮态及稳性的影响  

Study on the Dynamic Load of Rope and Its Effect on Floating and Stability of Revolving Crane Vessel

作　　者：陈新权[1,2] 何炎平[1,2] 李洪亮[1,2] 谭家华[1,2] 

机构地区：[1]上海交通大学船舶海洋与建筑工程学院 [2]海洋工程国家重点实验室,上海200240

出　　处：《上海交通大学学报》2010年第6期778-781,786,共5页Journal of Shanghai Jiaotong University

基　　金：国家科技支撑计划项目(2007BAF10B02);国家(重点)实验室专项经费(GKZD010019;GKZD010809)资助项目

摘　　要：针对起重船在波浪中作业时,船体运动激起吊索摆动产生的附加动力荷载将对船舶的浮态和稳性不利,以超大型全回转起重船"蓝鲸"号为对象,建立了水动力模型,对其在不规则波浪中的运动响应进行了计算.采用谱分析方法根据悬挂点与吊物之间的运动传递函数得到吊物运动的统计值,从而得到不同浪向、不同回转角度、不同吊索长度情况下的吊索附加动力荷载,并分析其对起重船浮态及稳性的影响规律.Additional dynamic loading generated by wire rope swinging due to wave-induced motion of the crane vessel adversely affects its buoyancy and stability. A hydrodynamic model of revolving crane vessel ＂LANJING＂ was built to calculate the motion response in irregular waves.Spectral analysis was employed to calculate the motion transfer functions from fulcrum of suspension to lifted object and the statistic characteristic value for lifted object motion.Characteristic value for additional dynamic loading,whose influence on buoyancy and stability of the crane vessel was also analyzed in this study,was obtained according to different waves,rotation angle and rope length.

关 键 词：全回转起重船 运动响应 吊索 动力荷载 浮态 稳性 

分 类 号：U661[交通运输工程—船舶及航道工程]