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.
出处
《船舶力学》
EI
CSCD
北大核心
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)
关键词
位错
雨流计数法
应变能
载荷频谱
Rain-flow Counting Method
strain energy
stress load spectrum
Fourier series
