| 汽油机最高爆发压力循环变动的分布规律 |
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| 引用本文： | 陈志恒,杰古阿萨,王财寿,景来军.汽油机最高爆发压力循环变动的分布规律[J].上海工程技术大学学报,2009,23(4):287-290. |
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| 作者姓名： | 陈志恒 杰古阿萨 王财寿 景来军 |
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| 作者单位： | 上海工程技术大学,汽车工程学院,上海,201620上海交通大学,机械与动力工程学院,上海,200240 |
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| 摘 要： | 基于315个试验点,样本容量为4 000的最高爆发压力pz试验数据,分别用正态分布、对数正态分布、威布尔分布、伽玛分布和贝塔分布对样本数据进行了拟合,并用分布拟合优度进行了检验.检验结果表明:在未发生爆震试验点,最高爆发压力循环变动服从3个参数的威布尔分布(置信度α=0.05).
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| 关 键 词： | 汽油机 循环变动 最高爆发压力 分布规律 |
Distribution Law of Peak Pressure Cyclic Variation in Gasoline Engine |
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| CHEN Zhi-heng,JIEGU A-sa,WANG Cai-shou,JING Lai-jun.Distribution Law of Peak Pressure Cyclic Variation in Gasoline Engine[J].Journal of Shanghai University of Engineering Science,2009,23(4):287-290. |
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| Authors: | CHEN Zhi-heng JIEGU A-sa WANG Cai-shou JING Lai-jun |
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| Affiliation: | CHEN Zhi-heng,JIEGU A-sa,WANG Cai-shou,JING Lai-jun,(1.College of Automotive Engineering,Shanghai University of Engineering Science,Shanghai 201620,China;2.School of Mechanical Engineering,Shanghai Jiaotong University,Shanghai 200240,China) |
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| Abstract: | Peak pressure sample data of 315 groups with a sample size of 4 000 were fitted respectively in normal distribution,logarithmic distribution,Weibull distribution,gamma distribution and beta distribution.The goodness of fit was analyzed and tested.The result shows that the peak pressure cyclic variation of the knock-free test group follows three-parameter Weibull distribution（confidence level α=0.05） |
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| Keywords: | gasoline engine cyclic variation peak pressure distribution law |
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