| 离心泵轴面流线分点的解析计算 |
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| 引用本文： | 严敬,王桃,李维承,阚能琪.离心泵轴面流线分点的解析计算[J].排灌机械,2009,27(3):137-139. |
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| 作者姓名： | 严敬 王桃 李维承 阚能琪 |
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| 作者单位： | 西华大学,能源与环境学院,四川,成都,610039 |
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| 摘 要： | 为提高使用保角变换法绘型离心泵叶轮叶片的绘型精度和缩短计算周期,研究了在轴面投影图上前盖板流线含有两段相切圆弧的复杂条件下,沿下圆弧流线分点的计算原则与方法.以数学分析为基础,讨论了构成前盖板流线的下圆弧上第一个分点3种可能出现的位置特点,分别导出了每种可能条件下确定分点位置的超越方程.这些方程的解精确确定下圆弧第一个分点的位置,有效提高轴面流线上分点的位置精度,改善了叶片绘型的精确性和可靠性.所给方法能改变在保角变换法绘型叶片过程中,以手工在轴面上反复试运算取点及由此产生的叶片型线光滑性和连续性不够理想的状况.
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| 关 键 词： | 离心泵 轴面流线分点 叶轮 设计 数学分析 |
Precise calculation for points along meridional streamline of centrifugal pumps |
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| Yan Jing,Wang Tao,Li Weicheng,Kan Nengqi.Precise calculation for points along meridional streamline of centrifugal pumps[J].Drainage and Irrigation Machinery,2009,27(3):137-139. |
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| Authors: | Yan Jing Wang Tao Li Weicheng Kan Nengqi |
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| Institution: | School of Energy and Environment;Xihua University;Chengdu;Sichuan 610039;China |
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| Abstract: | In order to improve the precision in blade drawing of centrifugal pump impellers and to shorten drawing period involved in conformal transformation methods,the calculation principles and methods are studied to determine the locations of dividing points along streamline when the front shroud streamline on meridional plane comprises two arcs tangential to each other.Based on mathematical analysis,3 possible locations of the first point on the lower arc which is a part of the front meridional streamline were d... |
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| Keywords: | centrifugal pump dividing meridional streamline impeller design mathematical analysis |
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