| 三维有限元分析在发动机改进设计中的应用 |
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| 引用本文： | 聂建军,杜发荣,姬芬竹,高峰.三维有限元分析在发动机改进设计中的应用[J].小型内燃机与摩托车,2006,35(4):33-35,38. |
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| 作者姓名： | 聂建军 杜发荣 姬芬竹 高峰 |
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| 作者单位： | 北京航空航天大学汽车工程系,北京,100083 |
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| 摘 要： | 为解决双缸水平对置风冷柴油机存在的活塞环粘结问题，首先对已知温度场的同类型的TY180F发动机活塞进行了三维有限元分析，以验证数学模型的正确性；然后建立了双缸风冷柴油机的三维有限元模型，按照TY180F发动机活塞的分析过程并充分考虑风冷柴油机传热的特点确定了传热边界条件，对活塞温度场进行了有限元计算和分析。最后根据计算结果对发动机冷却系统进行了必要的改进，试验结果表明改进后的活塞能避免活塞环粘结问题的发生。
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| 关 键 词： | 风冷柴油机 活塞 温度场 有限元 |
| 文章编号： | 1671-0630（2006）04-0033-04 |
| 收稿时间： | 2005-07-14 |
| 修稿时间： | 2005-07-14 |
Application of 3-D Finite Element Analysis in Engine Design |
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| Nie Jianjun,Du Farong,Ji Fenzhu,Gao Feng.Application of 3-D Finite Element Analysis in Engine Design[J].Small Internal Combustion Engine and Motorcycle,2006,35(4):33-35,38. |
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| Authors: | Nie Jianjun Du Farong Ji Fenzhu Gao Feng |
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| Affiliation: | Beijing University of Aeronautics and Astronautics (Beijing 100083 |
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| Abstract: | This paper firstly analyzes the similar 3-D piston of TY180F diesel engine using FEM,which temperature field is known,in order to solve the seizing problem of piston rings in a contraposition double cylinder air-cooling diesel engine(ACDE).Secondly,the 3-D piston model of ACDE is set up according to the analysis of TY180F piston.Then,the temperature field of piston model is calculated and analyzed,which thermodynamic boundary condition is determined fully considering the characteristic of heat transfer in ACDE.Finally,the engine cooling system is improved on the basis of the calculation results,and the test indicates that the piston rings work well.As we can see,the 3-D FEM analysis can help to improve the performance of existing product,and also to direct the piston design in the future. |
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| Keywords: | Air - cooling diesel engine Piston Temperature field FEM |
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