浅谈初稳性高在油船共同结构规范疲劳分析中的应用
천담초은성고재유선공동결구규범피로분석중적응용
Research about the application of the metacentric height in fatigue analysis of the common structural rules for double hull oil tankers
  • 万方数据
    船舶 선박
    Ship & Boat
    2015年 5期 123-127 ,共5页

    刘奕谦%夏益美%杨德才%刘寅华

    류혁겸%하익미%양덕재%류인화

    初稳性高%疲劳分析%共同结构规范%协调共同结构规范 初穩性高%疲勞分析%共同結構規範%協調共同結構規範
    초은성고%피로분석%공동결구규범%협조공동결구규범
    metacentric height%fatigue analysis%common structural rules%harmonized common structural rules
    对比初稳性高(GM)的取值方法在油船共同结构规范(CSR-OT)和协调版共同结构规范(CSR-H)中的差异,分析初稳性高与船体构件疲劳寿命的关系:初稳性高与船体构件疲劳寿命负相关.统计分析不同船型的实际初稳性高与规范缺省计算值的差异,对于B/D较小的"窄高型"油船,装载手册中经修正的初稳性高与规范缺省计算值的差异较大.通过某"窄高型"巴拿马最大型油船计算案例说明,选择装载手册中经修正的初稳性高可显著提高疲劳寿命计算结果,从而简化节点设计或减小构件尺寸.
    대비초은성고(GM)적취치방법재유선공동결구규범(CSR-OT)화협조판공동결구규범(CSR-H)중적차이,분석초은성고여선체구건피로수명적관계:초은성고여선체구건피로수명부상관.통계분석불동선형적실제초은성고여규범결성계산치적차이,대우B/D교소적"착고형"유선,장재수책중경수정적초은성고여규범결성계산치적차이교대.통과모"착고형"파나마최대형유선계산안례설명,선택장재수책중경수정적초은성고가현저제고피로수명계산결과,종이간화절점설계혹감소구건척촌.
    The metacentric height is in proportion to the fatigue life of the ship structure. The difference between the corrected GM value given in the loading manual and the rule default value of different kinds of oil tankers, specially for "high-narrow" type vessel, is great. Through fatigue check on a typical panamax oil carrier of "high-narrow" type, it is found that the fatigue life of longitudinals can be improved by choosing the corrected GM value, so as to simplify the details of the structure or reduce the scantlings of the structure.
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