水电站尾水管CAD的参数化实体造型方法及实现

The method of parametrized solid model for CAD of draft tube in hydropower station and its realization

提出了参数化实体造型的方法．该方法可以根据水轮机的类型自动选择尾水管的型号，根据转轮直径大小自动检索及计算尾水管的几何尺寸．由这些参数通过实体造型可自动生成尾水管的三维实体图。

The method of parametrized solid model is presented in this paper.The type of the draft tube can be selected automatically according to the type of the turbine to be used.The dimensions of the draft tube can be indexed in the data base automatically and then calculated based on the diameter of the turbine.The solid model of the draft tube can be generated from 3-dimension mentioned above.The plane view and section view drawings can be produced from the solid model.