摘要
最小样本长度的确定和外推方法的选取在载荷谱编制过程中起着决定性的作用。综述了载荷谱编制过程中关于样本长度的确定方法和外推方法,描述了不同的样本长度的确定方法,指出了它们的不同应用范围,并对比分析了每种确定方法的利弊。此外,给出了参数估计外推和雨流矩阵外推、外推过程及外推中的关键步骤。
Determination of minimum sample size and selection of extrapolation methods play important roles in compiling load spectra,so accurately mastering the two key technologies has significance for compiling load spectra.By contrasting various methods of determining the minimum sample size,different application scopes of these methods are identified,and advantages and disadvantages of each determination method is analysed.Meanwhile,parameters evaluation method and rainflow matrix extrapolation method are offered,and the extrapolation process and key steps of the two methods are also provided.
出处
《矿山机械》
北大核心
2011年第5期116-120,共5页
Mining & Processing Equipment
基金
国家自然基金项目(50805065
51075179)
关键词
工载荷谱
样本长度
外推
load spectrum
sample size
extrapolation
review
