轿车车门曲面的BSC法重构与拼接

针对轿车车门的表面质量要求和拉深成形工艺要求,通过三坐标测量机获得其点云及其曲面边界,应用B样条法构造双二次加权BSC曲面以拟合车门曲面,研究其不同分片曲面之间的光滑拼接方法.该方法对于车门这类型的复杂曲面零件的构造与拼接具有运算较少而精度可控制的特点.

Reconstruction and merging of automobile door surface using BSC method

In this paper,the B-spline method is adopted to construct basic spline class(BSC)surface with bi-quadric weight.Provide that the boundaries of point cloud have already been constructed;the merging means between different surfaces is researched on the basis of point clouds,which are obtained by the 3D measuring machine.The results show that this method is of validity for the construction of complex curved surfaces such as automotive door,and the calculation work is acceptable,while the accuracy is controllab...