摘要
利用有限元分析的方法对YZ4DE柴油机整机组合件进行了结构分析。为讨论气缸套的变形及其影响因素,提出了一系列评价气缸套变形的评价指标,如最大、最小半径,连续10个截面最大、最小半径,同轴度,圆柱度等。通过多个计算方案的对比结果表明:缸盖螺栓沉孔深度对气缸套变形影响最大,机体气缸筒外壁的铸造偏心对其影响甚小,缸盖螺栓预紧力的加大会加剧气缸套变形。
FEM technology was used to perform the structural analysis for the subassembly of YZ4DE diesel engine. In order to analyze the deformation of cylinder liner and its influencing factors, a set of new evaluation indexes was put forward to estimate the deformation of cylinder liner, such as the max/min radius, the max/min radius of the ten sequential sections, coaxiality and cylindricity and so on. The results of many tests indicate that the depth of cylinder head bolt-hole has great influence on deformation of cylinder bore, while the eccentric of cylinder bore in cylinder block has a few impact on the deformation of cylinder liner, and the increase of tightening force of cylinder head bolts brings on greater cylinder liner deformation.
出处
《内燃机工程》
EI
CAS
CSCD
北大核心
2008年第4期59-62,共4页
Chinese Internal Combustion Engine Engineering
关键词
内燃机
柴油机
有限元
气缸套
变形
IC engine
diesel engine
FEM
cylinder liner
deformation
