气缸盖温度场正交试验仿真方法研究  

The Simulation Research of Cylinder Head Temperature Field Based on the Orthogonal Test Method

作　　者：杨松林[1] 向建华[1] 程颖[1] 何联格[1] 

机构地区：[1]北京理工大学机械与车辆学院,北京100081

出　　处：《内燃机工程》2016年第3期73-77,82,共6页Chinese Internal Combustion Engine Engineering

基　　金：2014校科研基地科技支撑计划

摘　　要：运用正交试验方法仿真研究了相关的关键因素对气缸盖温度场的影响规律。首先建立某气缸盖有限元模型,选取气缸盖的最高温度作为考察指标,基于正交试验方法设计了16组试验方案,进行了气缸盖温度场的仿真计算,并对试验结果进行极差和方差计算分析。研究结果表明:相对于火力面温度和冷却水温度,火力面传热系数和冷却水传热系数对于气缸盖的温度场影响较大,且经验证获得的A_1B_4C_1D_1试验方案组合温度场要优于其他试验方案组合。Based on the orthogonal test method, the influences of some key engine-related factors on the cylinder head temperature field were studied. Firstly, the finite element model of a cylinder head was established, taking the maximum temperature of the cylinder head as an object of study. Then, using orthogonal experimental design method, a 16 groups calculation scheme was designed and the temperature field of the cylinder head was simulated. Finally, the test results were analyzed through the calculation of extreme difference and variance. The results show that in relation to the temperature of fire deck （C） and cooling water temperature （A）, the heat transfer coefficient of fire deck surface （D） and the heat transfer coefficient of cooling water （B） have greater impacts on the cylinder head temperature field. Additionally, a better experimental combination scheme A1B4C1D1 can be gained, verifying that its temperature field is superior to that of other combinations.

关 键 词：内燃机 气缸盖 温度场 正交试验 仿真 

分 类 号：TK422[动力工程及工程热物理—动力机械及工程]