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油气管道设计方案优选一般都以年折合费用为依据,却往往忽略了其它因素的影响,其结果与实际显然存在差异,在灰色系统理论基础上,结合物元分析的概念,提出了灰色物元决策分析法。该方法全面系统地考虑了对比方案中相关技术经济指标的优劣,其关键在于:①建立各方案的复合灰元;②建立理想方案多维灰元;③确定关联系数复合灰元;①计算关联度。阐明了该方法相关的基本概念、理论,通过实例说明了其应用方法。该方法计算简单,结果可靠,适合于油气管道工程与其它工程设计方案的优选与决策。
Based on the gray system theory, combined with the concept of matter element analysis, this paper proposes gray matter element Decision Analysis Method. This method comprehensively and systematically considers the advantages and disadvantages of the related technical and economic indicators in the comparison scheme. The key points are as follows: ①The composite gray-scale elements of each scheme are established; ② The multi-dimensional gray-scale elements of the ideal scheme are established; ③ The composite gray-scale elements of the correlation coefficient are determined; degree. The basic concepts and theories related to this method are expounded, and the application of this method is illustrated through examples. The method has simple calculation and reliable results, and is suitable for the optimization and decision-making of oil and gas pipelines and other engineering design schemes.