参数曲线在水泵叶轮设计中的应用

针对水泵设计所需的曲线及其特点，采用B样条和参数样条曲线对设计型线进行建模，根据设计准则和实践经验进行调整、修改和优化。基于曲线的参数化建模，从理论上推导出轴面流线和流线展开线的数学模型。改变了传统手工设计方法计算机化的常规做法，为在真正意义上实现水泵计算机辅助设计提供了理论基础和实现方法。

Application of parameterized curves in pump impeller design

In the pump design process,the modeling of the curves,necessary for designing,was proposed by using B-spline and parametric spline curves.The corresponding numerical computational method was given simultaneously.The results show that the present method is easy to adjust,revise and optimize according to the design criteria and expert's experience.Meanwhile through the use of parametric curve modeling,the accurate mathematical relations between the meridian stream line and unwrapped stream line can be deduced...