摘要
提出了一种毛坯边界非等距外延方法,即将毛坯边界节点非等距外延后,利用NURBS曲线拟合技术生成等距的新毛坯边界,再用NURBS曲面蒙皮算法生成平面,然后通过网格生成算法将生成平面离散成网格,最后用一种基于协方差矩阵特征值的坯料边界规则化算法来得到具有规则形状的坯料。
An indirect algorithm based on the discrete boundary point of extended blank was presented. The boundary points of new blank were obtained by non-uniform extension of the boundary discrete points of original blank, and then the boundary curve and the new blank surface were found by NURBS technology. At the same time, an optimized algorithm for complex boundary was provided to reduce the complexity of industrial production.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2007年第5期594-596,共3页
China Mechanical Engineering
基金
国家自然科学基金资助重点项目(19832020)
国家杰出青年科学基金资助项目(10125208)
