计算机应用研究2017，Vol.34Issue(12)：3656-3659,4.DOI:10.3969/j.issn.1001-3695.2017.12.030
基于云模型和SFT的可靠性数据不确定性评价
Uncertainty evaluation of reliability based on cloud model and SFT
摘要
Abstract
In order to analyze and evaluate the uncertainty in system reliability data,namely the randomness and discreteness and fuzziness,the combination of the cloud model with space fault tree (SFT) theory,this paper used the cloud SFT as a basis to evaluate data uncertainty.First,it clouded the relevant concepts of the SFT,bee ause the characteristics of cloud model could represent data uncertainty.Cloud system failure probability distribution was derivate with cloud model characteristic parameters (Ex,En and He) generated by reliability data,under the influence of some factors.According to the derivative result in the system working environment,and combining the vagueness,discreteness and randomness,it computed the data of uncertainty.It analyzed the classical examples by the method,and obtained some qualitative and quantitative results.But two parameters of Q and δ should be analysed specifically.关键词
安全系统工程/可靠性数据/不确定性评价/云模型/SFTKey words
safety system engineering/reliability data/uncertainty evaluation/cloud model/SFT分类
资源环境引用本文复制引用
李莎莎,崔铁军,马云东..基于云模型和SFT的可靠性数据不确定性评价[J].计算机应用研究,2017,34(12):3656-3659,4.基金项目
国家自然科学基金资助项目(51704141,51050003) （51704141,51050003）
辽宁省自然科学基金资助项目(201202022) （201202022）
