The third chapter analyzes several mesh quality smoothing and optimization methods, and imports a method that optimizes the node Numbers to reduce the semi-bandwidth of rigidity matrix.
第三章讨论了网格质量修匀及优化技术，并且引入网格节点编号优化方法以减小总刚矩阵的半带宽。
2
The four-ring reducer is a kind of new typed retarding device with many mesh points, gearing with small difference between the numbers of teeth.