摘要
为解决传统滚刀布置设计方法无法同时考虑刀盘受力平衡和滚刀破岩量均衡的问题,提出了一种全断面岩石掘进机滚刀布置的优化方法。根据极径与极角分别求解的策略,综合考虑设计方案、方案集数目和计算速度的要求,对刀盘初始方案中的滚刀进行合理分组,通过对组内每把滚刀的位置参量(极径、极角)施加微幅波动来建立滚刀布置方案集。采用加权灰靶决策方法,筛选出方案集中的最优方案,并对现有TB880E型掘进机滚刀布置进行了优化。与优化前相比,刀盘倾覆力矩减小了65%,并且不改变滚刀的布局模式,因此该方法不会对刀盘结构刚度产生不良影响,还在一定程度上避免了刀盘应力的集中。
A cutter layout optimization strategy for full-face rock tunnel boring machine （TBM） is proposed, to overcome the difficulty that the original design proposal usually can not meet the balance challenge of cutter head forces as well as the rock breaking amount of each cutter. In the strategy the position radius and position angle are solved separately. The layout scheme sets are established by grouping the cutters and exerting micro-adjustment for the position angle and radius, considering the requirements of design proposal, number of scheme sets and the computing rate. The best layout pattern is achieved by selecting the layout scheme following weighted grey target way. The TB880E TBM cutter layout proposal are optimized, compared with the computational results of the original layout design, the eccentric moment decreases by 65%. Since the cutter layout pattern are not adjusted, the optimization strategy enables to avoid stress concentration in some degree without harm to structural stiffness.
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
2013年第9期100-105,共6页
Journal of Xi'an Jiaotong University
基金
国家重点基础研究发展计划资助项目(2013CB035402)
关键词
全断面岩石掘进机
滚刀布置优化
加权灰靶决策
full-face rock tunnel boring machine
cutter layout optimization
weighted grey target strategic decision
