牙轮钻头牙齿外形的计算机描述

Computer-aided bit teeth contour description

根据牙轮钻头牙齿的形状特点及结构参数，利用空间解析几何方法，建立了能在计算机上详细描述牙齿形状特点及尺寸大小的数学模型，实现了楔形齿、勺形齿、偏顶勺形齿等钻头牙齿外形的计算机描述。这种模型是牙轮钻头工作行为的计算机仿真研究及钻头与岩石互作用仿真研究的基础模型之一。

According to the contour characteristics and structural parameters of cone bit teeth, and by means of spatial analytic geometry, a mathematic model is set up for describing the shape and size of the bit teeth on computer, thereby bit teeth of various contours can be described on computer.