| 摘要:活塞温度场边界条件由于其复杂性，一直没有一个很准确的预估方法。通过数据库形式收集整理多种活塞温度场历史预测与实测数据，采用均值预计、离散分布等方法，预估了某船用柴油机活塞温度场的温度边界条件，并采用有限元法进行预测；与此同时，采用硬度塞法对该活塞进行温度场测试。试验结果表明:采用该方法预测得到的温度场结果与实测结果吻合良好；得到的预测结果可为设计提供指导。 |
| 关键词: 活塞 船用柴油机 热边界条件 预估 |
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| The Research and Validation of Thermal Boundary Condition ofMarine Diesel Engine Piston |
| Li Quan,Feng Mingzhi,Chen Zhizhong,Feng Xuming |
| Shanghai Marine Diesel Engine Research Institute, Shanghai 201108 |
| Abstract:There had been no accurate method to predict the thermal boundary condition of pistons due to its complexity before. The historical results of prediction and testing were collected by using database, and the average vale prediction together with scattering methods were employed to predict the thermal boundary conditions of a marine diesel piston,meanwhile the prediction was given by using FEM analysis.The temperature test of the piston using Templug was also carried out . Finally, the comparative results showed that there was little difference between these two results, and the prediction could be used to guide the design. |
| Key words: piston marine diesel engine thermal boundary condition prediction |
