| 摘要:建立了某柴油机机体、气缸盖、气缸垫、主轴承盖等的有限元模型；运用非线性有限元软件,模拟了各个部件间的接触关系；计算了柴油机在螺栓预紧工况和爆发压力工况下的应力和应变,确定了最大应力部位,对机体进行了静态及疲劳安全强度校核,并对缸孔的安装变形进行了分析与评价。此方法可为发动机机油消耗评估及机体的改进设计提供依据。 |
| 关键词: 柴油机 机体 变形 有限元 |
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| FE Analysis of Diesel Block Strength and Cylinder Distortion of 493 Diesel Engine |
| Shi Yong,Li Sheng,Jing Guoxi,Wang Yuxing |
| Jiangling Motors Co.,Ltd., JiangxiNanchang330001;Zhejiang University, ZhejiangHangzhou310027 |
| Abstract:FE models of cylinder bock, cylinder head, gasket, main bearing cups are built. Using nonlinear FE software, contact relationships between the parts are simulated, stress and strain of the engine under pretension and explosion conditions are calculated and maximum stress positon is determined. Static strength and fatigue strength are checked, and the cylinder hole distortion under assembly load is analyzed. This method can provide useful information for engine oil consumption assessment and block optimization. |
| Key words: diesel engine cylinder block distortion FEA |
