| 摘要:以某型号重载发动机前支撑为例,介绍了前支撑模型建立的方法,采用ANSYS软件对前支撑的应力分布和疲劳寿命进行了有限元分析,分析表明:前支撑与发动机和整车连接处应力较大,远离连接处应力逐渐越小；当发动机向下颠簸加速度为6g时,前支撑和整车与连接螺栓孔处的应力分布最为恶劣,该结论可为前支撑的设计和优化设计提供理论依据。 |
| 关键词: 前支撑 柴油机 有限元 |
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| FEA Simulation Analysis of Engine Front Support of Heavy Duty Diesel Engine |
| Wang Weina,Cao Ke |
| Xi'an Cummins Engine Co.,Ltd.,ShanxiXi'an 710200 |
| Abstract:The front support of a certain heavy duty diesel engine is taken as an example to introduce the modeling of engine front support. Software ANSYS was applied to carry out FEA analysis on stress distribution and fatigue life of engine front support. The analysis results show that the stress on the connecting position of engine front support with engine and with the vehicle is large, and the stress become smaller as it get further away from the connecting position. As the engine's acceleration reach 6g when it bumps down, the stress distribution in the connecting bolt hole turns to be the worst. The conclusion provides a theoretical basis and a reference for the improvement of engine front support design and its optimization. |
| Key words: front support diesel engine FEA〖FL |
