BS EN 61703-2001 可靠性、可用性、可维护性和维修支持术语的数学表示法

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标准号:BS EN 61703-2001
中文标准名称:可靠性、可用性、可维护性和维修支持术语的数学表示法
英文标准名称:Mathematical expressions for reliability, availability, maintainability and maintenance support terms
标准类型:L05
发布日期:2001/11/28 12:00:00
实施日期:2001/11/28 12:00:00
中国标准分类号:L05
国际标准分类号:01.040.07;07.020
适用范围:This International Standard provides mathematical expressions for reliability, availability,maintainability and maintenance support measures defined in IEC 60050-191. The followingclasses of items are considered separately in this standard:– non-repaired items;– repaired items with zero time to restoration;– repaired items with non-zero time to restoration.In order to keep the mathematical formulae as simple as possible, the following basicmathematical models are used to quantify dependability measures:– random variable (time to failure) for non-repaired items;– simple (ordinary) renewal process for repaired items with zero time to restoration;– simple (ordinary) alternating renewal process for repaired items with non-zero time torestoration.To facilitate location of the full definition, the IEC 60050-191 reference for each term is shown(in parenthesis) immediately following each term, for example:mean time to restoration [191-13-08]The application of each dependability measure is illustrated by means of a simple example.NOTE This standard is mainly applicable to hardware dependability, but many terms and their definitions may beapplied to items containing software. Some of the software dependability aspects are explained in annex D.

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