基于HCSR规范计算海况对疲劳寿命的影响研究  

Sea State Effect on Fatigue Life Based on HCSR

作　　者：刘洋[1,2] 任慧龙[1] 冯国庆[1] 王东海[2] 邓进宁[1] 

机构地区：[1]哈尔滨工程大学船舶工程学院,哈尔滨150001 [2]中国船级社,北京100007

出　　处：《船舶工程》2014年第2期17-19,55,共4页Ship Engineering

摘　　要：相关资料表明,航行于北大西洋的船队数量占所有船队比例很小,而航行于全球或更低海况的船队数量比例较大,HCSR规范选取北大西洋海况为计算海况。基于谱分析的直接计算理论并以13型船为目标船,计算HCSR规范需强制校核热点和纵骨端部在不同海况下(全球和北大西洋海况)疲劳寿命的比值。结果表明:计算海况对疲劳寿命有较大的影响(比值为2左右),HCSR规范中的海况假定对评估结果保有余量。According to relative data, the number of ships sailing in the North Atlantic sea state accounts for a small proportion of all fleet, and sailing in the global or lower sea state accounts for larger proportion, furthermore, HCSR selects the North Atlantic sea state as the calculation sea state. Based on the theory of spectral direct calculation and 13 ships chosen as target ship, the fatigue life ratio of the compulsory hot spots and longitudinal stiffener end connections according to HCSR are calculated in different sea states （the global sea state and the North Atlantic sea state）. The results show that the sea state has a large effect on the fatigue life （ratio about 2）. what＇s more. the sea state assumption of HCSR has enough margin.

关 键 词：HCSR 海况 疲劳寿命 谱分析 直接计算 余量 

分 类 号：U662.1[交通运输工程—船舶及航道工程]