| 基于N次谐波法的供油凸轮型线的拟合 |
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| 引用本文： | 柴保明,张浩,高维金,高学攀,谷兴海. 基于N次谐波法的供油凸轮型线的拟合[J]. 河北工程大学学报(自然科学版), 2010, 27(4): 59-61 |
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| 作者姓名： | 柴保明 张浩 高维金 高学攀 谷兴海 |
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| 作者单位： | 河北工程大学 机电学院,河北工程大学 机电学院,河北工程大学 机电学院 |
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| 基金项目： | 河北省自然基金资助项目(C2008000721) |
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| 摘 要： | 采用N次谐波法反求电控单体集成泵的凹弧凸轮型线,利用MATLAB软件对凸轮型线进行曲线拟合,并根据拟合结果对供油凸轮性能进行分析。结果表明,在拟合过程中N的取值受限是造成截断误差的主要原因,因此可以通过增大N值来获得较高的拟合精度,在等速区段较大时,循环喷油量稳定,速度上升平稳。
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| 关 键 词： | 凸轮；谐波函数；曲线拟合 |
| 收稿时间： | 2010-09-05 |
Curve fitting of profile of cam based on harmonic analysis |
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| CHAI Bao-ming,ZHANG Hao,GAO Wei-jin,GAO Xue-pan and GU Xing-hai. Curve fitting of profile of cam based on harmonic analysis[J]. Journal of Hebei University of Engineering(Natural Science Edition), 2010, 27(4): 59-61 |
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| Authors: | CHAI Bao-ming ZHANG Hao GAO Wei-jin GAO Xue-pan GU Xing-hai |
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| Affiliation: | College of Agricultural,Hebei University of Engineering,Hebei Handan 056038,China;Hebei Academy of Agricultural and Forestry Sciences,Hebei Shijiazhuang 050031,China |
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| Abstract: | The harmonic function was used to reverse the arc cam concave of EUP, MATLAB software was applied to carry out the cam profile curve-fitting, and the author analyzed the performance of fuel-supplied cam according to the fitting results. The results shows that N`s value is limited, which the main reason for the truncation error in fitting process. We can increase the N`s value to obtain a higher accuracy; when the equal velocity section is large, cycle fuel injection quantity is stable and rate of increase is also relatively stable. |
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| Keywords: | cam harmonic function curve-fitting |
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