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中文摘要：
对离散单元法中的数值求解提出采用同步动态松弛法，以避免动态松弛法由于路径相关性所造成的算法误差．数值计算结果表明，同步动态松弛法简单、有效，且计算较为稳定，精度较高，并可使计算时步取得稍大一些，从而较大地加快了离散单元法的计算速度．
英文摘要：
The synchrony dynamic relaxation method is put forward for the numerical algorithm of distinct element method. It can avoid the numerical error arising from the route correlation of dynamic relaxation method. It is proved in this paper that the synchrony dynamic relaxation method is simple, reliable as well as stable and accurate. Simultaneously, the iteration interval can be enlarged to significantly improve the computing speed of the distinct element method.
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