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.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
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
关键词
全回转起重船
运动响应
吊索
动力荷载
浮态
稳性
revolving crane vessel
motion response
rope
dynamic load
floating
stability
