基于均衡破岩量的TBM正滚刀多目标优化布局

发布时间：2018-04-27 19:18

  本文选题：滚刀布局 + 遗传算法　； 参考：《机械设计》2017年11期

【摘要】：全断面岩石掘进机(TBM)是高度自动化的隧道掘进机械设备,其滚刀布局设计是刀盘快速有效掘进的关键技术。通过对TBM刀盘滚刀基本布局原则的总结,结合现有螺旋线布刀规律的研究分析,提出了变速螺旋线滚刀布局设计方法。基于滚刀破岩量差异最小化思想对正滚刀布局建立多目标优化模型,采用极径与极角分步优化设计,利用遗传算法对正滚刀极径进行优化设计模型求解,再利用NSGA-Ⅱ算法对其极角多目标优化模型求解。以TB880E刀盘滚刀布局为算例,对其正滚刀布局优化设计进行分析,与原有刀盘滚刀布局对比得出:不平衡径向力下降了33.9%,刀盘倾覆力矩下降了78.1%,正滚刀破岩方差也有了很大程度地减小,优化结果更利于正滚刀的均衡磨损。滚刀整体布局质心也更靠近刀盘中心。
[Abstract]:TBM is a highly automatic tunneling machine, and its hob layout design is the key technology for rapid and effective heading of cutter head. Based on the summary of the basic layout principle of TBM cutter head hob and the research and analysis of the existing helical cutter distribution law, the design method of variable speed helical hob layout is put forward. Based on the idea of minimizing the difference in rock mass of hobs, a multi-objective optimization model is established for the layout of normal hobs. The pole diameters and polar angles are designed step by step, and the genetic algorithm is used to solve the optimal design model of the normal hob diameters. Then NSGA- 鈪，

本文编号：1811977