雨流计数法误差详析方法的提出及实例研究  

A kind of error detailed analysis program proposed for rain-flow counting method and case study

作　　者：陈晶[1] 金永兴[1] 肖英杰[1] 毛奇凰[1] 吴华锋[1] 

机构地区：[1]上海海事大学商船学院,上海201306

出　　处：《船舶力学》2014年第5期550-556,共7页Journal of Ship Mechanics

基　　金：中央高校基本科研业务费专项(10CX05005A);国家自然科学基金资助项目(51279099);上海市科学技术委员会基金资助项目(12ZR1412500);上海市教委科研创新基金资助重点项目(13ZZ124);上海市教育委员会和上海市教育发展基金会"曙光计划"基金资助项目(12SG40);交通运输部应用基础研究项目(2013329810300);上海海事大学优秀博士学位论文培育项目(2013bxlp004)

摘　　要：文章依据频谱分析以及应变能量原理,对雨流计数法的系统误差进行定量分析。并结合集装箱船的现场采样数据,提供给业界一种定量计算雨流计数法误差的方法,可在进行结构疲劳计算时,根据应力曲线的定量特征和工程精度要求,来确定是否适合选用雨流计数法进行计算。Based on the spectral analysis and the strain energy theory, the systematic errors of Rain-flow counting Method were quantitatively analyzed. Combined with sampling data of the real container ship, a quantitative method for calculating the systematic errors of Rain-flow counting Method is put forward to the engineering field, which may decide the selection of Rain-flow counting Method based on the quantitative characteristics of the stress curve and engineering accuracy requirements when calculating structural fatigue life.

关 键 词：位错 雨流计数法 应变能 载荷频谱 

分 类 号：U661.4[交通运输工程—船舶及航道工程]