摘要
针对带有套筒稳定机构的超前支护液压支架的套筒受力、支架重量相互矛盾的突出问题,在相同外载荷、最大工作高度下,以套筒机构受力绝对值之和、长度之和最小为目标函数,建立了多目标优化模型。使用NSGA-Ⅱ算法求解建立的模型,采用模糊集合理论的方法选择最优解,并在Matlab环境下编制计算程序,应用此程序优化ZTC14000/28/46超前液压支架参数,优化后伸缩杆受力减小136.21k N。ZTC14000/28/46在补连塔煤矿连续运行中未出现套筒机构断裂事故,为提高超前液压支架综合性能提供了有效途径。
In order to solve the paradox problems of sleeve stress and support height of advance supporting hydraulic support with sleeve stability structure, under the same loading and the maximal working height, and it takes sum of absolute value and sum of length of sleeve structure stress as objective function, then multi-objective optimization model was built, and the model was solved by NSGA-II algorithm, the optimal solution was selected with fuzzy set theory, and calculation program was complicated under Matlab en-vironment ,the parameters of advance hydraulic support ZTC14000/28/46 were optimized by the program,then expansion link stress decreased 136. 21kN. The sleeve structure cracking accident had not appeared during ZTC14000/28/46 continuous working time in Bulianta coal mine, it provided more effective method for combination property improving of advance hydraulic support.
出处
《煤矿开采》
北大核心
2017年第4期35-38,共4页
Coal Mining Technology
基金
国家重点基础研究发展计划(973计划):深部围岩自适应支护原理及系统创成理论(2014CB046302)
关键词
超前液压支架
多目标优化设计
套筒机构
遗传算法
advance hydraulic support
multi-objective optimization design
sleeve structure
genetic algorithm
