Dynamic study of critical factors of explosion accident in laboratory based on FTA

Zhu, Chengyuan; Tang, Shao-Peng; Li, Zili; Fang, Xiuting

doi:10.1016/j.ssci.2020.104877

Cited by 35 publications

(28 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…From a statistical perspective, improper storage and handling comprised the most frequent human cause for laboratory incidents (27%), followed by procedure violations (7%) [2]; these two human factors can be considered as aspects of "Operation skills" in the present study. Lack of professional knowledge and not receiving professional training were recognized as the most important events in the laboratory explosion accidents by using FTA [17], which consistent with the results in the present study. In a smaller survey on 85 respondents, the results showed that 9% did not know how to handle an emergency in the laboratory fire and explosion accidents [44], which indicates that emergency ability is also a crucial factor in improving laboratory safety.…”

Section: Comparison With Other Similar Studiessupporting

confidence: 91%

“…HAZOP (hazard and operability analysis) is the common and original method of lab safety management, which can help to allocate the measures according to the relative importance of risks [ 7 , 8 , 9 , 10 , 11 ]. Additionally, FMEA (failure mode effect and criticality analysis) [ 12 , 13 ], FTA (fault tree analysis) [ 14 , 15 ], ETA (event tree analysis) [ 16 , 17 ] and Bayesian networks (BNs) [ 3 , 13 ] have also been introduced into laboratory risk assessments. These various methods provide more options for risk identification from different perspectives [ 18 , 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Methodology for Dynamic Assessment of Laboratory Safety by SEM-SD

Zhang

et al. 2021

IJERPH

View full text Add to dashboard Cite

Lab safety problems have become an impeding factor that cannot be ignored in normal teaching and scientific research activities at colleges and universities. As the risk factors of lab accidents can be conceptualized as occurring at multiple levels, systematically improving and optimizing lab safety is the crucial route to accident prevention in labs. In this paper, a novel method that integrates a structural equation model (SEM) and system dynamics (SD) is presented to dynamically assess lab safety with the characteristics of insufficient data and uncertainty. On the basis of a questionnaire investigation, the SEM was utilized to determine the influencing factors on lab safety and acquire the path coefficients among these factors, which were embedded into the SD model as the weight of the influencing factors. An illustration was carried out to test and validate the proposed method, and a sensitivity analysis was also conducted to recognize variables contributing the most to the improvement of lab safety. The results demonstrated that the safety input of human and management subsystems is the most effective to improve the lab safety; meanwhile, “safety awareness”, “emergency ability”, “operation skills”, “safety culture” and “safety training” are the top five contributing factors, which can promote lab safety in the shortest time.

show abstract

Section: Comparison With Other Similar Studiessupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

A Methodology for Dynamic Assessment of Laboratory Safety by SEM-SD

Zhang

et al. 2021

IJERPH

View full text Add to dashboard Cite

show abstract

“…When the last domino falls, it will cause damage. On this basis, linear models such as failure mode and effect analysis (FMEA) [ 24 ], Fault Tree Analysis (FTA) [ 25 , 26 ], and Event Tree Analysis (ETA) [ 27 , 28 ] were developed. However, these models are effective in analyzing the simple accidents caused by a single factor, but it is not suitable to explain accidents involving the interaction of multiple risk factors in complex systems, like HCRTS.…”

Section: Literature Reviewmentioning

confidence: 99%

Identifying the Weaker Function Links in the Hazardous Chemicals Road Transportation System in China

Zhang

et al. 2021

IJERPH

View full text Add to dashboard Cite

Safety of the hazardous chemicals road transportation system (HCRTS) is an important, complex, social, and environmental sensitive problem. The complexity, dynamics, and multi-link features of HCRTS have made it necessary to think beyond traditional risk analysis methods. Based on the relevant literature, Functional Resonance Analysis Method (FRAM) is a relatively new systemic method for modeling and analyzing complex socio-technical systems. In this study, a methodology that integrates FRAM, fuzzy sets, and risk matrix is presented to quantitatively assess the risks factors representing failure function links in HCRTS. As the strength of function links can be illustrated by the RI (risk index) of risk factors identified in failure function links, 32 risk factors representing 12 failure function links were first identified by accident causes analysis and the framework of FRAM. Fuzzy sets were then utilized to calculate the weight of the likelihood and consequence of the risk factors. Finally, according to the assessment results of the identified risk factors by a two-dimensional risk matrix, the weaker function links in the whole HCRTS chain were identified. HCs road companies, regulatory authorities, relevant practitioners, and other stakeholders should pay more attention to these links.

show abstract

“…FT quantitative analysis is to calculate the occurrence probability of the TE if all the failure probabilities of the BEs are available. The FTA method is based on Boolean logic [54], and the calculation of FT uses Boolean mathematics [55]. An FT can be modeled by a set of AND gates and OR gates connected between BEs and IEs.…”

Section: The Quantitative Analysismentioning

confidence: 99%

Applications of FFTA–HFACS for Analyzing Human and Organization Factors in Electric Misoperation Accidents

Lin

Huang

2021

Applied Sciences

View full text Add to dashboard Cite

Human and organizational factors (HOFs) play an important role in electric misoperation accidents (EMAs), but research into the reliability of human factors is still in its infancy in the field of EMAs, and further investment in research is urgently required. To analyze the HOFs in EMAs, a hybrid method including the Human Factors Analysis and Classification System (HFACS) and fuzzy fault tree analysis (FFTA) was applied to EMAs for the first time in the paper. HFACS is used to identify and classify the HOFs with 135 accidents, reorganized as basic events (BEs), intermediate events (IEs), and top event (TE), and develop the architecture of fault tree (FT). Fuzzy aggregation is employed to address experts’ expressions and obtain the failure probabilities of the BEs and the minimal cut sets (MCSs) of the FT. The approach generates BEs failure probabilities without reliance on quantitative historical failure statistics of EMAs via qualitative records processing. The FFTA–HFACS model is applied for quantitative analysis of the probability of failure of electrical mishaps and the interaction between accident risk factors. It can assist professionals in deciding whether and where to take preventive or corrective actions and assist in knowledgeable decision-making around the electric operation and maintenance process. Finally, applying this hybrid method to EMAs, the results show that the probability of an EMAs is 1.0410 × 10−2, which is a risk level that is likely to occur and must be controlled. Two of the most important risk factors are habitual violations and supervisory violation; a combination of risk factors of inadequate work preparation and paralysis, and irresponsibility on the part of employees are also frequent errors.

show abstract

Dynamic study of critical factors of explosion accident in laboratory based on FTA

Cited by 35 publications

References 46 publications

A Methodology for Dynamic Assessment of Laboratory Safety by SEM-SD

A Methodology for Dynamic Assessment of Laboratory Safety by SEM-SD

Identifying the Weaker Function Links in the Hazardous Chemicals Road Transportation System in China

Applications of FFTA–HFACS for Analyzing Human and Organization Factors in Electric Misoperation Accidents

Contact Info

Product

Resources

About