基于MATLAB的灰色熵权管道风险评价模型

A MATLAB-BASED PIPELINE RISK ASSESSMENT MODEL ASSESSED BY GREY RELEVANCE THEORY AND ENTROPY-WEIGHTED METHOD

近年来我国长输管道领域发展迅速,相应地长输管道风险评价也显得日益重要。根据长输管道系统风险的成因、危害以及所具有的灰色特性,结合国内环境条件、运行状况和管理水平等实际情况,采用灰色关联理论与熵权法相结合的评价模型,对长输管道风险评价做定量研究,确定了长输管道系统的主导风险因素的风险排序。由于灰色理论与熵权法相结合的计算过程比较复杂繁冗,因此采用MATLAB来建立管道风险评价的数学模型。这为管道的风险评价提高了工作效率,减少了人工计算过程中的失误,使得计算过程更加准确,评价结果更加符合事实。

In recent years,we've made rapid progress in the field of long distance pipeline; accordingly,risk assessment on long distance pipeline becomes increasingly important. According to the causes of risks,hazard factors and the grey characteristics of long distance pipeline system,this article adopts a combined assessment model of entropy-weighted method and grey relevance theory to make a quantitative study on the risk assessment of long distance pipelines,and to determine the order of leading risk factors in long distance pipeline system under the domestic environmental conditions,operation conditions and management level under consideration. As the calculation process of assessment model which combines entropy-weighted method with grey relevance theory is complex,MATLAB is adopted to establish a mathematical model for pipeline risk assessment. Such method helps to improve work efficiency in risk assessment on pipeline,reduce errors in manual calculation process. Besides,it makes the calculation process more accurate and the assessment results closer to facts.