偏置圆柱体相贯线上的圆角表示方法-PolyUIRA.PDF

偏置圆柱体相贯线上的圆角表示方法 1 1 1 2 牗1牣浙江科技学院牞浙江杭州310012牷2牣香港理工大学牞香港 1003牘 The Solid Modeling of the Fillet on the Intersection Line of Two Cylinders 1 1 1 2 LIU Hu ran ZHAO Dong fu SONG De yu CHENG Qing yuan 1Zhejiang University of Science and Technology angzhou 310012China2The ong Kong Polytechnic University ong Kong 1003China 　　牶偏置圆柱体相贯线上的圆角表 方法是 CAD 和计算机辅助设计中众所周知的难题牣所有的 CAD牤CAM 软件都没有这 一功能牞多数使用者用各 种各样的近似方法牣经分析牞找到了严密的精确的设 计和几何造型方法牣可用于大型铸锻件 CAD 和计 算机辅助设计牣 T 721 A 1　 1001 2257200510 0071 02 　θ 2 AbstractThe solid modeling of the fillet on 　uv the intersection line of two cylinders is a difficult problem in CAD and CAMall the soft wears have x 1=x 2 y 1 =y 2 z 1=z 2 3 no such functionMost designers have to use var-i ous kinds of methodThis paper finds acorrect way a cosθ=va sinθ=Y +bcos u =bsin 4 for design and geometric modelingand finds a pre- 42 θ4 1v cise method to generate the fillet surfacesCan be 43 u applied to the CAD and CAM of machinery parts →θ→v Key wordsintersect linefilletCAD →u 1　相贯线 2　与两圆柱面同时接触的小球 1 1 2