Application of integrated factor evaluation–analytic hierarchy process–T-S fuzzy fault tree analysis in reliability allocation of industrial robot systems

2021 ◽  
pp. 108248
Author(s):  
Bin Bai ◽  
Chuxiong Xie ◽  
Xiangdong Liu ◽  
Wei Li ◽  
Weiyu Zhong
Keyword(s):  
Analytic Hierarchy Process ◽  
Industrial Robot ◽  
Fault Tree Analysis ◽  
Analytic Hierarchy ◽  
Reliability Allocation ◽  
Tree Analysis ◽  
Fuzzy Fault Tree Analysis ◽  
Robot Systems ◽  
Factor Evaluation ◽  
Hierarchy Process

scholarly journals A Comprehensive Investigation on the Fire Hazards and Environmental Risks in a Commercial Complex Based on Fault Tree Analysis and the Analytic Hierarchy Process

2020 ◽  
Vol 17 (19) ◽  
pp. 7347
Author(s):  
Yongyu Wang ◽  
Xiaoyang Ni ◽  
Jie Wang ◽  
Ziyi Hu ◽  
Kaihua Lu
Keyword(s):  
Analytic Hierarchy Process ◽  
Fire Safety ◽  
Fault Tree ◽  
Fault Tree Analysis ◽  
Analytic Hierarchy ◽  
Tree Analysis ◽  
Causative Factors ◽  
Target Layer ◽  
The Analytic Hierarchy Process ◽  
Hierarchy Process

This paper focuses on the fire risk assessment for commercial complex, as the variety of fire accidental triggers inside could be a big threat to the public fire safety, leading to catastrophic loss in human lives and properties. Both the qualitative and quantitative analysis were imposed on a typical large commercial complex to recognize the potential fire-causative factors in this paper. Applying the fault tree analysis, the basic events leading to fire are acquired, and they are then further reclassified based on the analytic hierarchy process. Taking the damage of the accident as the target layer and the fire-causative factors, the equipment operation factors and firefighting factors as the criterion layer, the assessment index is well established. The risk of each factor is quantitatively evaluated, and the effect of each factor on the target layer is analyzed. The result of the fault tree analysis and analytic hierarchy process shows good consistency, in which human behavior is the main factor leading to the fire occurrence, followed by the combustible material, the rescue speed and the staff assignment factors. The results are beneficial for general decisions and measures in public fire safety management.

Study of the Structure Importance in Pipe Bridge Failure Fuzzy Assessment

2011 ◽  
Vol 233-235 ◽  
pp. 2922-2925
Author(s):  
Xin Qi Yu ◽  
Qing Gang Liu
Keyword(s):  
Analytic Hierarchy Process ◽  
Fault Tree ◽  
Fault Tree Analysis ◽  
Analytic Hierarchy ◽  
Tree Analysis ◽  
High Consistency ◽  
Fuzzy Assessment ◽  
Bridge Failure ◽  
Hierarchy Process

The safety status of pipe bridge is often studied by fuzzy assessment. In fuzzy assessment, the structure importance must be calculated first. In this article, structure importance is calculated by Fault tree analysis(FTA) and Analytic hierarchy process(AHP). The result shows that the structure importance calculated by both methods is less than 30% different from each other. That means two methods are of high consistency and both is suitable for pipe bridge.

scholarly journals Research and Application of Critical Failure Paths Identification Method for Dam Risk Analysis

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Kun He ◽  
Liang Pei ◽  
Xiang Lu ◽  
Jiankang Chen ◽  
Zhenyu Wu
Keyword(s):  
Risk Analysis ◽  
Analytic Hierarchy Process ◽  
Fault Tree Analysis ◽  
Risk Identification ◽  
Analytic Hierarchy ◽  
Identification Method ◽  
Failure Path ◽  
And Control ◽  
The Impact ◽  
Hierarchy Process

Dam is an important part of the national infrastructure, and its safety has been widely concerned. Risk identification of dams plays a significant role in risk assessment and control. Finding out some critical failure paths through adopting timely measures can help reduce the risk occurrence probability effectively. This paper develops an identification method based on the credibility and the interval analytic hierarchy process (IAHP) methods, namely, consistency and difference-based interval analytic hierarchy process (CDB-IAHP) method, to identify the critical failure paths of dams exactly considering the dynamic cognition degree of decision-makers. Based on the fault tree analysis (FTA) method, the framework and analysis for critical failure paths identification of a gravity dam and an Earth-rockfill dam are conducted and made. The results show that the critical failure paths obtained by the proposed method are in line with the statistical data, and the importance of disaster causing factors has some difference with the traditional method. Additionally, some engineering and nonengineering measures are suggested to reduce the impact of potential failure paths. The applications demonstrate that the proposed method shows good applicability for risk analysis and critical failure path mining of dams.

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