| 高速柴油机顶置式配气凸轮机构的动力学计算 |
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| 引用本文： | 付光琦,康秀玲,郭凌崧,唐良才,祖炳锋,徐玉梁,高文志.高速柴油机顶置式配气凸轮机构的动力学计算[J].内燃机学报,2000,18(2):113-116. |
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| 作者姓名： | 付光琦 康秀玲 郭凌崧 唐良才 祖炳锋 徐玉梁 高文志 |
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| 作者单位： | 1. 天津内燃机研究所,天津,300072
2. 天津大学 |
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| 摘 要： | 介绍了高速柴油机顶置式配气凸轮机构的动力学模型，用ＭＡＴＬＡＢ语言变摇臂比顶置凸轮轴配气机构的动力计算通用程序，利用通用程序对ＣＴ４８４Ｑ高速柴油机配气机构进行了动力学计算，计算结果表明，当柴油机转速增高到２８００ｒ／ｍｉｎ时，凸轮与摇臂发生脱离现象，速度曲线波动较大，建议通过改进凸轮型线设计或提高配气系统和气门弹簧刚度来改善配气系统的动力性。
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| 关 键 词： | 柴油机 顶置式凸轮轴 配气机构 动力计算 |
Dynamic Calculation on OHC Valve Train in High-Speed Diesel Engines |
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| FU Guang-qi,KANG Xiu-ling,GUO Ling-song,TANG Liang-cai,ZU Bing-feng,XU Yu-liang,GAO Wen-zhi.Dynamic Calculation on OHC Valve Train in High-Speed Diesel Engines[J].Transactions of Csice,2000,18(2):113-116. |
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| Authors: | FU Guang-qi KANG Xiu-ling GUO Ling-song TANG Liang-cai ZU Bing-feng XU Yu-liang GAO Wen-zhi |
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| Abstract: | This paper establishes the dynamic model on OHC valve train with rocker of variable ratio in high-speed diesel engines,and compiles a common program for its dynamic calculation with MATLAB language.The valve train's dynamic calculation on CT484 high-speed diesel engine is carried out by the program,and the result shows when the speed of engine reach 2 800 r/min,the cam and rocker separate,and the curve of speed has a rather great fluctuation.So it is suggested to improve the dynamic performances of the valve train through optimizing the design of cam profile or increasing the rigidity of valve train and valve spring. |
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| Keywords: | High-speed diesel engine OHC Valve train Dynamic calculation Rocker with variable ration |
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