| 内燃机配气凸轮和喷油泵凸轮数控磨削时的曲线拟合 |
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| 引用本文： | 郑世良 武信. 内燃机配气凸轮和喷油泵凸轮数控磨削时的曲线拟合[J]. 安徽工学院学报, 1991, 10(3): 29-34 |
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| 作者姓名： | 郑世良 武信 |
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| 作者单位： | 安徽工学院动力机械系，安徽工学院动力机械系 |
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| 摘 要： | 本文对凸轮数控磨床上加工内燃机凸轮,建立了一种通用的曲线拟合方法,求得凸轮曲线方程。当已知凸轮升程表时,即可以拟合非递增的或递增的幂指数多项式,以及三角函数、指数函数等曲线,升程拟合曲线的精度可以达到10~(-4)mm以上,能够满足各种配气凸轮和喷油泵凸轮曲线拟合的需要。
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| 关 键 词： | 内燃机 凸轮 数控磨削 曲线拟合 |
CURVE FITTIING DURING NUMERICAL-CONTROL GRINDING CAMS FOR VALVE GEAR MECHANISM AND INJECTION PUMP OF INTERNAL COMBUSTION ENGINES |
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| Zheng Shiliang,Wu Xin. CURVE FITTIING DURING NUMERICAL-CONTROL GRINDING CAMS FOR VALVE GEAR MECHANISM AND INJECTION PUMP OF INTERNAL COMBUSTION ENGINES[J]. , 1991, 10(3): 29-34 |
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| Authors: | Zheng Shiliang Wu Xin |
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| Affiliation: | Zheng Shiliang;Wu Xin Department of Power Machinery |
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| Abstract: | It is desirable to know the cam curve equation during numeri-cal-control grinding the cam of internal combustion engines. A general methodfor curve fitting was established in this paper. This method can fit such camcurve as polynomial function with non-progressively or progressively increasingexponent, trigonometrical function, exponential function, etc., as soon as thecam lift table is given. The accuracy of lift curve fitting is up to 10~(-4)mm leveland over, this can meet the needs of the verious cam curve fitting for valve gearmechanism and injection pump. |
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| Keywords: | internal combustion engine cam numerical--control grinding curve fit |
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