犁体曲面的单元节点计算机展开法

ELEMENT NODE COMPUTER EXPENDING METHOD OF PLOW BODY SURFACE

本文提出了一种新颖而先进、适用的犁体曲面展开法——单元节点计算机展开法。介绍了单元节点展开法的展开原理、单元节点的划分,分析了三角单元和四边形单元的展开,导出了它们的展开公式,从而阐明了犁体曲面的展开。 介绍了单元节点计算机展开法的软件设计与应用情况,该软件展开犁面速度快而精度高。对用该软件所计算、展开的30cm幅宽的犁体的试制、试验表明,该软件计算、展开的犁体性能良好。

This paper presents a new advanced and useful plow body surface expending method--element node computer expending method.This paper describes the principle of element node expending method, explains how to creat mesh, analyses triangle and quartrilateral element's expending method. An expending model has been derived. Furthermore, plow body surface-expending method is explained.The software design and applying of element node computer expending method are introduced in this paper. Plow body surface expending drawing drawn by this software is shown. The speed of expending plow body surface is fast, and precision is high.Finally, this paper describes the trialproducing and test of plow body designed by this software. Practice has proved that the expending method is correct and advanced.