二维+说明书，汽车发动机冷却系统散热器的优化设计

目录

摘要1
第一章绪论3
第二章散热器的结构及其发展4
2.1散热器的结构4
2.1.1散热器的结构组成5
2.1.2散热器的结构特点7
2.1.3散热器的作用7
2.2散热器的发展8
第三章国内外散热器的热力性能优化现状9
3.1国外的研究现状9
3.2国内的研究现状9
第四章本课题研究的内容及思路11
4.1本课题研究的内容11
4.2本课题研究的思路11
第五章散热器的传热特性分析12
5.1散热器传热特性分析12
5.2传热分析13
6.3流阻分析14
第六章散热器优化模型的建立15
6. 1优化目标及设计变量15
6. 2目标函数15
第七章约束条件17
7.1流动约束18
7.2散热器风扇约束18
7.3边界约束18
第八章散热器工作参数优化数学模型19
8.1程序编制19
8.2程序编制过程19
8.3 MATLAB程序运用结果图20
第九章总结22
9.1分析图像22
9.2定性分析22
9.3得出结论23
展望24
参考文献25
致谢26
附录27

摘要

随着汽车工业的蓬勃发展，各种各样的高性能高性价比的汽车应运而生。发动机的冷却系统在整个汽车的作用上起到了不可替代的关键作用。本文在分析了汽车散热器的各设计要求的基础之上,提出了比传统的设计方法更为完善的设计方法，并且提出了散热器的优化设计方法。散热器的传热特性、流动特性和耗材量等都是结构设计的主要指标。在设计方面，汽车散热器的很多指标都会影响散热器的性能，而这些指标都是相互关联相互制约，如果采用了传统设计方法不仅会耗时,而且会在主要指标之间产生取值上的矛盾，所得到的方案结果只是一个可行的设计,而不是最优设计。本课题的主要工作是为管带式散热器热力性能的优化，确定了波距w、波高H对散热器散热量Q达到最大散热性能和空气阻力最小的最优值为目标的目标函数，对影响管芯式的散热器，使热力性能主要的参数进行优化，并计算，使行驶的汽车既能有很好的散热性能又使汽车行驶阻力降到最低，既能提高发动机的动力性又能提高经济性。
关键词：散热器冷却系统优化

ABSTRACT

With the booming automobile industry, a variety of high performance cars came into being. Engine cooling systems throughout the car's role play an irreplaceable critical role. Based on the analysis based on the design requirements for vehicle radiators, compared with the conventional design method is proposed to further improve the design of the radiator optimal design method. Radiator of heat transfer and flow characteristics and quantity of supplies is the structural design of the main index. In terms of design, car radiators indicators will affect the performance of the heat sink, and these indicators are interrelated and limit, using the traditional method is time consuming, and values on the contradiction between the main index, The results obtained are just a viable design is only a viable design, rather than optimal design. This subject of main work is for belt type radiator thermal performance of optimization, determines has wave from w, and wave high h on radiator bulk heat Q reached maximum thermal performance and air resistance minimum of optimal value for target of target function, on effects tube core type radiator thermal performance of main parameter for has optimization calculation, makes driving of car both can has is good of thermal performance and makes car driving resistance down minimum, both can improve engine of power sex and can improve economic sex.
Key words: radiator; cooling system; optimization;