摘要
以变半径球面的球心运动轨迹曲线在圆柱面上的投影作为过渡带曲面的构形方法,分析其变化规律并给出几何与数学构造。
This paper provides a method that surface of transition zone is constructed.The geometric and mathematic solution is given by projecting moving center of sphere with varied radius on the cylinders.A typical surface of transition zone is trajectory of moving isomorphic sphere.This surface is widely used in water conservancy engineering.Since it both reduce resistance of flow at corner of intersected cylinders and increases strength there.However,when the angle between axis of intersected cylinders become smaller,it is more preferable to use the female surface of the sphere with varied radius.This surface of transition zone with a stable width possesses better avaliable properties.
出处
《华东理工大学学报(自然科学版)》
CAS
CSCD
北大核心
1997年第4期435-440,共6页
Journal of East China University of Science and Technology
关键词
圆管
工程制图
管道
包络曲面
过渡带曲面
transition zone
cylindric pipe
resistance
strengh
varied radius