犁体曲面的计算机辅助设计研究吕钊钦山东农业大学１前言设计犁体曲面的主要途径有在试修法基础上进行测绘获得犁体曲面和用几何作图法与数学分析法设计犁体曲面。常用的几何作图法为水平直线元法，该法应根据给定的土垡几何尺寸ａ和ｂ绘制犁体曲面外形轮廓主视图；确定元... Computer-aided design of plow surface SUI Zhao-qin Shandong Agricultural University 1 Introduction The main ways to design plow surface are based on the test method to obtain the plow surface mapping and geometry drawing method and mathematical analysis of design plow surface. Commonly used geometric mapping method for the horizontal line element method, the law should be based on a given soil geometrical dimensions a and b drawing plow surface contour outline front view;