| 单缸断油和关闭气门对曲轴扭振特性影响研究 |
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| 引用本文： | 王海燕,张付军,黄英,杨守平,赵长禄. 单缸断油和关闭气门对曲轴扭振特性影响研究[J]. 车用发动机, 2010, 0(3) |
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| 作者姓名： | 王海燕 张付军 黄英 杨守平 赵长禄 |
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| 作者单位： | 北京理工大学机械与车辆学院,北京,100081 |
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| 基金项目： | 国家自然科学基金资助项目，国家部委"十一五"基础产品研究 |
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| 摘 要： | 对发动机曲轴系统的扭振特性进行了理论分析,利用GT-Crank模块建立某V型6缸发动机的动力学仿真模型,对发动机单缸断油和单缸关闭气门两种工况进行仿真计算,对比分析了发动机正常发火与单缸停缸时系统扭振特性。仿真结果表明:单缸停缸时系统扭振以低谐次为主,扭振振幅较正常发火显著增加,扭转应力变化不明显;单缸关闭气门扭振振幅较单缸断油大;不同气缸断油和关闭气门扭振振幅最大差距分别为16.5%和4.3%。
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| 关 键 词： | 曲轴 扭振特性 断油 关闭气门 |
Influences of Fuel Cutoff and Valve Closing on Crankshaft Torsional Vibration for a Single Cylinder |
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| WANG Hai-yan,ZHANG Fu-jun,HUANG Ying,YANG Shou-ping,ZHAO Chang-lu. Influences of Fuel Cutoff and Valve Closing on Crankshaft Torsional Vibration for a Single Cylinder[J]. Vehicle Engine, 2010, 0(3) |
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| Authors: | WANG Hai-yan ZHANG Fu-jun HUANG Ying YANG Shou-ping ZHAO Chang-lu |
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| Affiliation: | WANG Hai-yan,ZHANG Fu-jun,HUANG Ying,YANG Shou-ping,ZHAO Chang-lu (School of Mechanical Engineering,Beijing Institute of Technology,Beijing 100081,China) |
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| Abstract: | The torsional vibration characteristics of engine crankshaft system were theoretically analyzed.Then dynamics simulation model of a V-6 engine was established with the GT-Crank module.Based on the model,the fuel cutoff and valve closing of a single cylinder was simulated.The system torsional vibration characteristics between normal combustion and single cylinder misfire were compared.The results show that,when one cylinder stops working,the system torsional vibration mainly occurs on low harmonic orders,the... |
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| Keywords: | crankshaft torsional vibration characteristics fuel cutoff valve closing |
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