论述了牙轮钻机主机构减速器的优化设计方法和基本原理，以主机构减速器作为整体进行优化，采用离散复合形算法。
The optimum design method and basic principles of main reducer of rotary blast hole drill are discussed, The main reducer is taken as a whole and is optimized by discrete Complex method.
但矢量数据的叠置处理极为复杂，为保证算法思想的可靠性，本文着重运用拓扑学中有关复合形的理论，证明了矢量网格法叠置算法若干前提的正确性。
Because of the complication of the overlap, the reliability of the basic idea of the method is also proved with the theory of complexes from topology in this paper.
计算结果表明该文提出的约束复合形法在非凸可行域上的修正算法是可行的。
The computation results show that the method of modifier algorithm of constrained complex method in concave feasible fields, proposed in this paper, is effective.
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