油气管道设计方案的灰色物元分析

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。

Grey Matter-element Analysis for Oil and Gas Pipelines

In a general way, optimization in oil and gas pipeline is based on annual conversion cost. And other factors are always ignored. Obviously, the results are not coincided with practice. Based on grey theory combined with the concepts of matter-element analysis, the grey matter-element decision analysis is proposed. This method systemically considers correlative technologic and economic indexes of the contrastive plans. The key points of this method lie in the buildup of composite grey element of all plans,the determination of multidimensional grey element of ideal plan and the composite grey element of associated coeffi-cient,and the calculation of correlativity. Correlative concepts and theory are expounded. And the applied method are showed by an example. This method is simple and the results are reliable. This method is fit for the optimization and decision-making of oil and gas pipelines and other engineering.