SN/T 2337-2009 食品接触材料检验规程 金属材料类

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下一篇: SN/T 0452.3-2009 进出口针织服装检验规程 第3部分:针织内衣

标准名称：	混凝土钻孔取芯机技术条件
中标分类：	公路、水路运输 >> 公路运输 >> 公路防护与养护
替代情况：	调整为JT/T 118-1993
发布日期：
实施日期：	1990-07-01
首发日期：
作废日期：
出版日期：
页数：	9页

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Product Code:SAE J2623
Title:Standard Rainflow File Format
Issuing Committee:Road Load Data Acquisition Committee
Scope:This SAE Standard provides a definition of a rainflow file format. This type of simple text file would contain all relevant information about the rainflow cycle content of a time history. Included information are Comments, Signal Range, Signal Mean, Number of Cycles, Signal Maximum, Signal Minimum.Rainflow cycle counting has become the most accepted procedure for identifying material fatigue relevant cycles in complex variable amplitude load time histories. The cycle counting methods account for the effects of material plasticity and material memory of prior deformation, and the resulting compressed history information is used by durability analysts to estimate the effects of a given service or test history. Standardization of the rainflow counting methods output files, which is the format addressed by the present standard, is important for reliable information transfer between test and design groups, or different calculation software packages, and thus forms a critical step in the evaluation of components and vehicles. Further background information can be found in the SAE publication AE-10 cited in 2.1.1.