农用单缸柴油机气缸盖的结构分析与优化  

Structural Analysis and Optimization of Cylinder Head of Agricultural Single-cylinder Diesel Engine

作　　者：孙力平[1,2] 张翠平[1] 张健[1] 药志英[1] 齐丽丽[1] 李天鹏[1] 

机构地区：[1]太原理工大学车辆工程系,太原030024 [2]中国重汽集团杭州动力研发中心,杭州311231

出　　处：《农机化研究》2014年第3期234-238,共5页Journal of Agricultural Mechanization Research

基　　金：山西省基础研究项目(2012011012-1);山西省高等学校留学回国人员科研项目(2011-12)

摘　　要：运用UG软件对1110型农用柴油机的气缸盖进行三维实体建模,并将其导入ANSYS软件进行有限元网格划分;然后,运用ANSYS WORKBENCH对原气缸盖在最大爆发工况下的强度进行了有限元计算,并对其结果进行分析;最后,对原气缸盖进行结构优化,并对优化后的气缸盖进行有限元分析,将得到的结果与原气缸盖计算结果进行比较。结果表明,优化后气缸盖上的最大机械应力比原气缸盖上的最大机械应力减小了8MPa,在一定程度上提高了气缸盖的强度,延长了气缸盖的使用寿命,可以为单缸柴油机的结构优化和新机型的开发提供一定的理论依据。Establishing the three-dimensional entity model of cylinder head of 1110 agricultural diesel engine by UG soft ware and obtaining the finite model of it by ANSYS software. And then, structure analysis of the cylinder head was con- ducted by ANSYS WORKBENCH under the biggest outbreak conditions, and the results were analyzed in this paper. Fi nally, the original cylinder head structure was improved, and the finite analysis was conducted on the improved cylinder head, the results were compared with the original cylinder head calculation. The results show that the maximum mechani cal stress in the improved cylinder head was reduced 8MPa than the original cylinder head. To a certain extent, it im proved the strength of the cylinder head and prolonged the service life of the cylinder head. And it can provide certain theory basis for the structure improvement of single cylinder diesel engine and the development of new type diesel.

关 键 词：单缸柴油机 气缸盖 有限元法 应力场 变形场 

分 类 号：TK426[动力工程及工程热物理—动力机械及工程]