| 内燃机配气凸轮型线拟合方法比较 |
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| 引用本文： | 高文志,关顺吉,刘建国,郝睿昕.内燃机配气凸轮型线拟合方法比较[J].拖拉机与农用运输车,2005(6):59-60,63. |
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| 作者姓名： | 高文志 关顺吉 刘建国 郝睿昕 |
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| 作者单位： | 天津大学机械工程学院,天津,300072 |
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| 摘 要： | 通过分析实测的配气凸轮升程表,运用三次样条插值函数法和N次谐波函数逼近法,推导出升程函数的数学解析式。并运用这两种方法对4110Z型柴油机的配气凸轮型线进行了拟合,得到了升程、速度和加速度曲线。经过比较,认为N次谐波函数逼近法能够拟合出更理想的凸轮型线。
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| 关 键 词： | 内燃机 凸轮升程 逼近 拟合 |
| 收稿时间： | 2005-01-07 |
| 修稿时间： | 2005-01-07 |
Comparison of Fitting Approaches for Valve Cam Profile of Internal Combustion Engine |
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| Gao Wenzhi,Guan Shunji,Liu jianguo,Hao Ruixin.Comparison of Fitting Approaches for Valve Cam Profile of Internal Combustion Engine[J].Tractor & Farm Transporter,2005(6):59-60,63. |
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| Authors: | Gao Wenzhi Guan Shunji Liu jianguo Hao Ruixin |
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| Institution: | Mechanical Engineering school,Tianjin University,Tianjin 300072 ,China |
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| Abstract: | In this paper ,the measured lift data is analyzed and according to the analysis, the analytical lift functions are deduced by using the iterative methods of cubic spline interpolation and Nth-degree harmonic function. Two approaches are adopted to fit the valve-train cam profile of 4110Z Diesel Engine and the curves of lift,velocity and acceleration are obtained The comparison of two approaches confirms that the Nth-degree harmonic method is more ideal in the fitting of cam profile. |
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| Keywords: | IC engine Cam lift Iterative method Fitting |
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