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논문 기본 정보

자료유형
학술저널
저자정보
Xianghao Gao (School of Automation Engineering, Shanghai University of Electric Power) Xiaoyan Su (School of Automation Engineering, Shanghai University of Electric Power) Hong Qian (School of Automation Engineering, Shanghai University of Electric Power) Xiaolei Pan (School of Automation Engineering, Shanghai University of Electric Power)
저널정보
한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제54권 제3호
발행연도
2022.3
수록면
948 - 958 (11page)

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Since reliability and security of man-machine system increasingly depend on reliability of human, humanreliability analysis (HRA) has attracted a lot of attention in many fields especially in nuclear engineering. Dependence assessment among human tasks is a important part in HRA which contributes to anappropriate evaluation result. Most of methods in HRA are based on experts’ opinions which are subjectiveand uncertain. Also, the dependence influencing factors are usually considered to be constant,which is unrealistic. In this paper, a new model based on DempstereShafer evidence theory (DSET) andfuzzy number is proposed to handle the dependence between two tasks in HRA under uncertain anddynamic situations. First, the dependence influencing factors are identified and the judgments on thefactors are represented as basic belief assignments (BBAs). Second, the BBAs of the factors that varyingwith time are reconstructed based on the correction BBA derived from time value. Then, BBAs of allfactors are combined to gain the fused BBA. Finally, conditional human error probability (CHEP) isderived based on the fused BBA. The proposed method can deal with uncertainties in the judgments anddynamics of the dependence influencing factors. A case study is illustrated to show the effectiveness andthe flexibility of the proposed method.

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