Application of improved cloud center of gravity theory in vulnerability assessment of chemical parks
To evaluate the vulnerability of chemical parks and accurately prevent the risk of accidents in chemical parks,this paper proposes a vulnerability assessment model of chemical parks based on Continuous Ordered Weighted Averaging(COWA)-G1 and cloud center of gravity theory based on the ambiguity and randomness of vulnerability index information.Firstly,a fishbone diagram model is constructed to analyze the vulnerability factors affecting chemical parks from five different dimensions:personnel,materials,facilities,environment,and emergency response capability,and the vulnerability evaluation index system of chemical parks is constructed based on this model;secondly,to reduce the subjectivity of the traditional weighting method,the subjective and objective weights of the evaluation indexes are selected from the COWA operator and the G1 ordinal relationship method;then,the cloud center of gravity theory is introduced to establish a vulnerability evaluation model of chemical parks based on the cloud center of gravity theory.Then,the cloud center of gravity theory is introduced to establish the vulnerability evaluation model of chemical park based on cloud center of gravity theory,and the vulnerability evaluation level of chemical park is scientifically determined from the data perspective by calculating the size of weighted similarity,and the comprehensive evaluation cloud map is drawn by using Python software,to analyze the vulnerability level from the perspective of visualization;finally,a chemical park is taken as an example,and the reliability and reasonable validity of the method are verified.The research results show that the vulnerability evaluation grade of the chemical park is at the general vulnerability level,indicating that the chemical park has good resilience.The evaluation model can be programmed to complete the model simulation,which is simple and practical and improves the efficiency and operability of the comprehensive evaluation.The research content can provide theoretical support and a decision-making basis for the daily safety management and emergency response of chemical parks.
safety engineeringchemical industry parkvulnerabilitycloud gravity center theoryweighted similarity
万方数据
维普
