摘要
利用模糊层次分析法,综合考虑柴油机微粒捕集器捕集机理各项影响因子对捕集机理的相互影响,将相互关联的复杂评价系统分解成若干独立分层的系统,建立了柴油机微粒捕集器捕集机理的综合评价模型.结果表明,壁厚、孔隙率和微孔孔径对主要捕集机理影响最显著,而孔密度、直径和长度对主要捕集机理的影响属于次要因素.孔隙率对扩散机理的影响占绝对主导地位,约占60%的影响权重;微孔孔径是影响惯性碰撞机理的首要因素,约占39%的影响权重;而孔隙率和微孔孔径是拦截机理两大同等重要的影响因素,二者占60%的影响权重.
By utilizing the fuzzy analytic hierarchy process and considering the mutual influence of the influencing factors on the trapping mechanism of diesel particulate filter,a complex interconnected evaluation system was decomposed into several independent hierarchical systems,and a comprehensive evaluation model of the trapping mechanism of diesel particulate filter was established.The results showed that the wall thickness,the porosity and the pore aperture were the most remarkable influencing factors to the main trapping mechanism.While the hole density,the diameter and the length were the secondary influence factors to the main trapping mechanism.The factor of porosity was overwhelmingly dominant to the diffusion mechanism,accounting for nearly 60% influence proportion;the pore aperture was the most important factor to the inertia collision mechanism,accounting for nearly 39% influence proportion;and furthermore,the porosity and the pore aperture were the equally important influencing factors to the intercept mechanism,the two accounting for 60% influence proportion.
出处
《湖南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2011年第4期25-30,共6页
Journal of Hunan University:Natural Sciences
基金
国家自然科学基金资助项目(50876027)
国家863计划资助项目(2008AA11A116)
湖南省自然科学基金资助项目(10JJ6080)
湖南大学汽车车身先进制造国家重点实验室课题资助项目(61075002)
关键词
模糊层次分析法
柴油机
微粒捕集器
捕集机理
fuzzy analytic hierarchy process
diesel
diesel particulate filter
trapping mechanism
