| 安全等级特征量及其计算方法 |
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| 引用本文： | 许开立,陈宝智,陈全.安全等级特征量及其计算方法[J].中国安全科学学报,1999,9(6):6-12. |
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| 作者姓名： | 许开立 陈宝智 陈全 |
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| 作者单位： | 1. 东北大学资源与土木工程学院
2. 国家经贸委安全科学技术研究中心 |
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| 摘 要： | 指出了目前用模糊评价法确定系统的安全等级所存在的问题和不足之处。分别运用模糊随机变量理论和模糊集理论而提出了安全等级模糊随机特征量和安全等级模糊特征量的概念及其计算方法。安全等级特征量及安全等级变量，均为安全等级取值论域上的模糊子集，而并非是一个确定的点。还给出了安全等级的绝对可能性和相对可能性的计算方法。实例表明，笔者所提出的安全等级特征量及可能性的计算方法是科学的、合理的
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| 关 键 词： | 安全等级 评价 模糊随机特征量 模糊特征量 可能性 |
Characteristic Quantity of Safety Grade and Its Calculation Method |
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| Xu Kaili,Chen Baozhi,Chen Quan.Characteristic Quantity of Safety Grade and Its Calculation Method[J].China Safety Science Journal,1999,9(6):6-12. |
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| Authors: | Xu Kaili Chen Baozhi Chen Quan |
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| Abstract: | Using the method of fuzzy evaluation, existing problems and shortcomings are pointed out as the time of system safety grade being defined. By using fuzzy random variable theory and fuzzy set theory, the concept and its calculation method of fuzzy random characteristic quantity of safety grade are put forward. Both characteristic quantity of safety grade and its variable are the value obtained from the fuzzy sub-set of safety grade on domain, and are not a definite point. Calculation method of absolute and relative possibility is also given. System safety in future can be evaluated and forecasted in a definite condition by the calculation method of fuzzy random characteristic quantity of safety grade. Examples demonstrate that calculation method of characteristic quantity of safety grade and the possibility pointed out in this paper are scientific and rational. |
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| Keywords: | Safety grade Evaluation Fuzzy random characteristic quantity Fuzzy characteristic quantity Possibility |
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