扭曲面读图与画法

1、水利工程制图2014.09水工建筑物常见曲面 主 讲 人： 张圣敏 黄河水利职业技术学院水利工程制图Warped surface constructionWarped surface construction扭曲扭曲面画法面画法v Apply to the command of slice to divide the solid into two parts. 应用剖切命令将实体分成两部分；应用剖切命令将实体分成两部分；v Display the cross-cut view;展示剖切断面；展示剖切断面；v Complete the cross-cut view of B-B.绘制断面图。绘制

2、断面图。 1. 1. Reading the warped surface and complete the cross-cut view. 扭曲面过渡段读图扭曲面过渡段读图水利工程制图Warped surface constructionWarped surface construction扭曲扭曲面画法面画法Fig1. draw three views and complete cut view based on the given cabinet drawing.图图1. 根据扭曲面的轴测根据扭曲面的轴测图完成三视图与断面图图完成三视图与断面图绘制。绘制。水利工程制图Warped sur

3、face constructionWarped surface construction扭曲扭曲面画法面画法Fig2. model and its cutting model水利工程制图Warped surface constructionWarped surface construction扭曲扭曲面画法面画法v Understand the shape of cut through the solid; 首先通过剖切立体来理解断面图形状；首先通过剖切立体来理解断面图形状；v Follow the projection rules to draw the cut view; 遵循投影规律补断

4、面。遵循投影规律补断面。 2. 2. Experience sharing in completing the cut view 补补断面经验分享断面经验分享水利工程制图Warped surface constructionWarped surface construction扭曲扭曲面画法面画法v The left view shows the true shape of two end faces; 左视图反映两个端面实形；左视图反映两个端面实形；v The top and front view need to draw generating lines; 主俯视图需要绘制素线主俯视图需要绘制素线v The skills to draw generating lines. 绘制素线的技巧。绘制素线的技巧。 3. 3. Experience sharing in showing the three 扭曲扭曲面段表达经验分享面段表达经验分享水利工程制图Warped surface constructionWarped su