| 用耦合分析法解决内燃机活塞传热问题 |
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| 引用本文： | 丁铁新,白敏丽.用耦合分析法解决内燃机活塞传热问题[J].小型内燃机与摩托车,2004,33(5):8-11,41. |
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| 作者姓名： | 丁铁新 白敏丽 |
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| 作者单位： | 大连理工大学动力系,大连,116023 |
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| 基金项目： | 国家自然科学基金资助项目 (50 2 760 0 7)，辽宁省自然科学基金资助项目(2 0 0 1 1 0 1 0 58) |
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| 摘 要： | 内燃机活塞处于复杂的受热状态：被缸内燃气的瞬时加热和冷却；活塞组与气缸套的动接触传热；冷却油腔及油束的对流换热等。确定上述各部分换热的边界条件成为活塞传热研究的重点和难点。本文采用耦合分析的方法将活塞及与其相互作用的各个部件作为一个整体进行研究，由此确定活塞各边界上的边界条件。并以110型柴油机活塞为实例，应用上述方法确定边界条件，对活塞进行三维有限元计算，计算结果同实验值良好吻合。
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| 关 键 词： | 活塞组 内燃机 传热 油束 对流换热 气缸套 柴油机 瞬时 油腔 耦合分析 |
Coupled Methods to Evaluate Piston Heat Transfer in Internal Combustion Engines |
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| Ding Tiexin,Bai Minli.Coupled Methods to Evaluate Piston Heat Transfer in Internal Combustion Engines[J].Small Internal Combustion Engine and Motorcycle,2004,33(5):8-11,41. |
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| Authors: | Ding Tiexin Bai Minli |
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| Affiliation: | Dalian 116023 |
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| Abstract: | The piston of IC engine works in complicated thermal conditions, transiently heated and cooled by in-cylinder gas, sliding contact heat transfer between piston groups and cylinder, thermal convection with cooling oil chamber and spray etc. How to calculate those thermal boundary conditions is the key issue for piston thermal research. In the paper, a coupled method is discussed, which treating piston and its thermal interactions as a whole and ultimately solving them together. This method is adopted to define the thermal boundary conditions, which is used in 110 type piston 3-D finite element calculation. Calculating results and measuring values are very well accordant. |
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| Keywords: | Piston Heat transfer Coupled Boundary conditions |
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