混凝土湿喷机组举升臂结构优化及强度分析
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摘要
混凝土湿喷机组广泛应用于铁路、公路、水利水电、市政、矿山、军事等行业地下工程领域。文章针对TKJ系列混凝土湿喷机组举升臂部分进行结构分析、力学性能优化,基于蒙特卡洛法实现了对TKJ混凝土湿喷机组举升臂铰点位置和工作范围的优化,给出了结构受力最优的铰点布局方案;与原方案相比举升臂铰点力在均值和最值上均有所改善,其中举升油缸铰点力最大值和平均值相较原始方案分别减小了23.14%和7.70%。利用AnsysWorkbench的强度分析功能对优化方案进行静强度校核,结果表明,优化方案相较原始方案有较大的安全储备,结构设计更加合理。
Wet shotcrete spraying units are widely used in underground engineering, for railways, highways, waterconservancy and hydropower stations, municipal works, mining and military and other industries. Structural analysisand mechanical behavior optimization are conducted regarding the lifting arm of a TKJ series shotcrete sprayingunit, and optimization of the hinge point position and working scope of the lifting arm is realized. The optimal layoutscheme for the hinge force is given based on the Monte Carlo method, the hinge force of the lifting arm is improvedfor the mean and maximum values, and the maximum and average hinge force of the lifting cylinder decrease by23.14% and 7.70%, respectively, compared with that of the original scheme. The static strength is checked usingAnsys-Workbench for the optimized scheme, and the results show that the optimized scheme has a larger safety re-serve and that the structural design is more reasonable than the original scheme.
Wet shotcrete spraying units are widely used in underground engineering, for railways, highways, waterconservancy and hydropower stations, municipal works, mining and military and other industries. Structural analysisand mechanical behavior optimization are conducted regarding the lifting arm of a TKJ series shotcrete sprayingunit, and optimization of the hinge point position and working scope of the lifting arm is realized. The optimal layoutscheme for the hinge force is given based on the Monte Carlo method, the hinge force of the lifting arm is improvedfor the mean and maximum values, and the maximum and average hinge force of the lifting cylinder decrease by23.14% and 7.70%, respectively, compared with that of the original scheme. The static strength is checked usingAnsys-Workbench for the optimized scheme, and the results show that the optimized scheme has a larger safety re-serve and that the structural design is more reasonable than the original scheme.
引文
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[2]孙钧.海底隧道工程设计施工若干关键技术的商榷[J].岩石力学与工程学报,2006,25(8):1513-1521.SUN Jun.Discussion on Some Key Technical Issues for Design and Construction of Undersea Tunnels[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(8):1513-1521.
[3]马建,孙守增,赵文义,等.中国隧道工程学术研究综述·2015[J].中国公路学报,2015,28(5):1-65.MA Jian,SUN Shouzeng,ZHAO Wenyi,et al.Review on China′s Tunnel Engineering Research·2015[J].China Journal of Highway and Transport,2015,28(5):1-65.
[4]汪西应,王军,温少芳.混凝土湿喷机工作臂的运动分析与仿真[J].煤矿机械,2011,32(5):73-75.WANG Xiying,WANG Jun,WEN Shaofang.Kinematics Analysis and Simulation on Working Arm of Concrete Sprayer[J].Coal Mining Machinery,2011,32(5):73-75.
[5]高梅梅,孙伟,蒲晓波.一种泵式混凝土湿喷机控制系统研究[J].建筑机械化,2015,(3):69-71.GAO Meimei,SUN Wei,PU Xiaobo.Control System Research of the Wet Spraying Machinery with Concrete Pump[J].Construction Mechanization,2015(3):69-71.
[6]范玉,范佳琦,黄继战.混凝土湿喷机的结构设计与分析[J].装备制造技术,2015,(7):146-147.FAN Yu,FAN Jiaqi,HUANG Jizhan.Structural Design and Analysis of Concrete Wet Spraying Machine[J].Equipment Manufacturing Technology,2015,(7):146-147.
[7]袁贵星,王平.蒙特卡洛模拟及其在公差设计中的应用[J].天津科技大学学报,2008,23(2):60-64.YUAN Guixing,WANG Ping.Monte Carlo Simulation and Its Application in Tolerance Design[J].Journal of Tianjin University of Science and Technology,2008,23(2):60-64.
[8]蒋炎坤,刘刚强,李宗,等.基于遗传算法的挖掘机工作装置铰点位置优化[J].华中科技大学学报(自然科学版),2011,(3):22-25.JIANG Yankun,LIU Gangqiang,LI Zong,et al.Optimization of Hinge Position of Working Device of Excavators by Genetic Algorithm[J].Journal of Huazhong University of Science and Technology(Natural Science Edition),2011,(3):22-25.
[9]陈复之.210型挖掘机工作装置铰点优化设计[D].上海:上海工程技术大学,2014.CHEN Fuzhi.Optimal Design of Hinge Points on the Working Device Based on the 210 Type Excavator[D].Shanghai:Shanghai University of Engineering Science,2014.
[10]夏玉军,李乡安.混凝土泵车臂架连杆机构的铰点优化[J].建筑机械,2013,(3):90-93.XIA Yujun,LI Xiang′an.Hinge Point Optimization of Boom Linkage Mechanism of Truck Concrete Pump[J].Construction Machinery,2013,(3):90-93.
[11]闫海涛,成凯,徐怀玉,等.基于遗传算法的混凝土泵车臂架铰点系统的优化[J].建筑机械,2011,(8):84-87.YAN Haitao,CHENG Kai,XU Huaiyu,et al.The Optimization of the Boom Hinge Point System for the Concrete Pump Truck Based on Genetic Algorithm[J].Construction Machinery,2011,(8):84-87.
[12]武佰全.全地面起重机塔式副臂连接架铰点位置优化[D].大连:大连理工大学,2012.WU Baiquan.All-terrain Crane Tower Jib Connection Bracket Hinge Position Optimization[D].Dalian:Dalian University of Technology,2012.