摘要
由于叶片截面的变化为连续,根据叶片若干个不同部位截面的型线图,利用插值方法,建立起整只叶片的数学模型,以便利用计算机运算速度快;计算精确的特点,计算和绘制叶片任意位置的型线图。从而为工程上研究、制造叶片模具提供一种高效、准确的方法。
The cross sections of the leaves in steam turbines(LST) are changed continuously. This paper discusses the subject for establishing the mathematical model of a complete LST by use of the outline—graths of several cross sections of different parts of the LST with the method of inserting values. So that we can take the advantages of the computer characteristics of swiftness and accuracy to calculate and draw the outline—graphs of LST in any positions. With the result that it can provide an efficient and accurate method for studying and making the patterns of the LST
关键词
CAD
数字模型
计算机绘图
leaves
computer aided design
cross sections
