闫理贵;李国祥;

1:山东大学能源与动力工程学院

     摘要：采用有限元分析方法,根据经验公式和CFD-FEA耦合方法进行边界条件的施加,对柴油机气缸套进行了温度场分析,并将温度场用于耦合场的计算,分析了不同载荷对气缸套变形的影响,研究结果表明:气缸套最高温度为582K,出现在内壁顶部,温度场分布由上至下逐渐变低;热载荷是气缸套变形的主导因素,控制缸套变形时应主要控制热载荷引起的变形,为气缸套的设计提供了理论依据。

    关键词： 气缸套;;温度场;;热载荷;;变形

    Abstract: According to the temperature field data measured and CFD-FEA coupling method,the boundary condition calculation on cylinder liner is carried out.The temperature field of the cylinder liner and the coupling filed under the thermal analyzing results are given with the FEA method.The research result shows that the working temperature of cylinder liner,which appears on the upper part of inner surface in the cylinder liner,can be high up to 582 K,temperature field distribution from top to bottom which gradually turns low;thermal load is the leading factor in deformation of the cylinder.So control to cylinder deformation caused by thermal load should be more important.The simulation provides theoretical evidence for cylinder liner optimization.

    Keywords: Cylinder Liner;Temperature Field;Thermal Load;Deformation

参考文献：

[1]曹茹,李刚.内燃机车柴油机气缸套热变形有限元分析[J].兰州交通大学学报,2007;26(3):70-72.

[2]王希珍,严兆大,周军.柴油机缸套热负荷评估的分析及实验研究方法[J].内燃机工程,2001(4):62-65.

[3]刘月花,毕玉华,申立中.柴油机气缸套温度场有限元分析[J].拖拉机与农用运输车,2006;33(3):75-77.

[4]俞小莉,郑飞,严兆大.内燃机气缸体内表面稳态传热边界条件的研究[J].内燃机学报,1987(4):329-332.

[5]商兴国,张帆.圆度误差的快速傅里叶变换分析[J].唐山学院学报,2005(3):88~90

[6]Koch F,Decker P.Cylinder liner deformation analysismeasurement s and calculations[C].SAE 980567.