船舶总纵强度的校核

Calculations of ship's longitudinal strength and the research of improving measures

充分考虑到船舶营运中的腐蚀对船舶的影响,从船舶防腐措施及航行状态等方面分析了利用船舶年平均腐蚀率估算其强度的不确定性.根据实船测试确定"育龙"号船的腐蚀率并对该船的船中剖面模数及船舶"压载出港"、"压载到港"两种营运状态允许承受的最大静水弯矩进行校核.根据计算结果提出并采取良好的改进措施.研究结论对充分考虑腐蚀对船体强度的影响,确保航行安全具有实际意义.

Hull strength is an ability of resisting form damaged or changed owing to external forces, which is determined by inner structure and load distribution. In the paper, the affection of corrosion to section module is considered, indeterminateness of strength assessment by annual ratio of corrosion is analyzed from antirrosion measures and sailing conditions ,the calculations and improving measures of longitudinal strength in departure ballast condition and arrival ballast condition for M/V 'Yu Long' are carried out ,which is worthwhile for safety of shipping.