AVLBOOST喷油定时对高海拔柴油机性能影响的模拟研究
毕业论文关键字：柴油机，喷油定时，AVL BOOST，模拟研究，提前角，环境压力
Abstract Based on our geographical location, vast plateau, high above sea level, in the diesel engine to run under such conditions will be the following shortcomings: lack of motivation, reliability deteriorates, the corresponding emissions will be more serious。 All this has seriously limited the use of diesel engines in the plateau region, and so the characteristics of the diesel engine play out。 Therefore, based on the existence of these problems, focusing on research and analysis of diesel injection timing at high altitudes, which is to improve energy efficiency and power resilience has a very important theoretical and practical significance。 Applications AVL BOOST software to build a six-cylinder diesel engine working process model, and on the basis of the model to analyze the effect on the overall performance of the injection timing, and ultimately determine the altitude 3550M optimum injection timing of the diesel engine。 The working process of the diesel model, the injection timing was 16 ° ATDC, 18 ° ATDC, 20 ° ATDC, 22 ° ATDC working process was simulated。 The influence of injection timing of the diesel engine cylinder temperature, pressure, power consumption and heat release rate in these five areas of performance。
Keywords: Diesel engine, injection timing, AVL BOOST, simulation studies, timing, pressure on the environment
目 录
第一章绪论。11
1。1 引言。11
1。2 选题的背景及意义。12
1。3 国内外现在发展的情况。13
1。4 本文研究的目的和意义。13
第二章AVL BOOST基本资料和一些模型的分析。14
2。1 AVL BOOST软件的基本资料 。。14
2。1。1 AVL BOOST软件的出现缘由和效果14
2。1。2 AVL BOOST软件的长处和不足14
2。1。3 AVL BOOST软件的组成。15 2。2 AVL BOOST有关理论知识和一些模型介绍。。。15
2。2。1 假设的具体内容。。。15
2。2。2 气缸的高压循环基本方程。。。16
2。2。3 一些模型的分析。。。18
2。2。4 气缸漏气损失。22
2。3 本章小结。。。22
第三章柴油机AVL BOOST计算模型的建立。。23
3。1 柴油机的工作原理 23
3。2 主要设计参数。24
3。3 建立工作模型。25
3。4 设置模型参数。27
3。4。1 整体参数输入。27
3。4。2 引擎参数输入。28
3。4。3 气缸参数输入。31
3。4。4 空气冷却器参数输入。。。36
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