混凝土布料机输送量影响因素研究
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摘要
目的研究混凝土布料机螺旋输送量影响因素,为人工神经网络输送量智能预报模型的输入量确定提供合理依据.方法从混凝土布料机的布料机理出发,推导布料机输送量的计算公式;采用单一变量分析方法,使用MATLAB以及离散元软件进行数值仿真,研究螺旋输送量影响因素对输送量的影响效果.结果随着螺旋叶片直径、填充系数的增加,布料机输送量增加;随着螺旋叶片的摩擦系数、螺旋轴直径增加,布料机输送量减小;螺旋升角与螺旋转速都存在一个最佳值,使得输送量最大;影响因素对输送量的影响灵敏度从大到小为螺旋升角1.32 t/h、螺旋转速1.1 t/h、螺旋叶片直径0.99 t/h、填充系数0.91 t/h、摩擦系数0.59 t/h,螺旋轴直径0.382 t/h.结论影响因素中的螺旋叶片直径、螺旋升角、螺旋转速、填充系数及摩擦系数更适合作为神经网络输送量智能预报模型的输入量.
The influencing factors of screw conveying capacity of concrete distributor are investigated to provide the basis for the determine the input layer of artificial neural network model for prediction the conveying capacity.The distribution mechanism of the concrete distributor and the formula for calculating the conveying capacity of the distributor were derived,and the single variable analysis method was used to study effect of the influence factors on the conveying capacity by simulation with MATLAB and discrete element software.The results showed that the conveying capacity was increased with the increasing of screw blade diameter and filling coefficient,and decreased with increasing the friction coefficient and screw shaft diameter increase.There is an optimal value for spiral lift angle and spiral speed to maximize the conveying capacity.The sensitivity of influence factors to conveying capacity from large to small is spiral lift angle(1.32 t/h),screw blade diameter(0.99 t/h),filling coefficient(0.91 t/h),friction coefficient(0.59 t/h),screw shaft diameter(0.382 t/h).The screw blade diameter,spiral lift angle,screw spiral speed,filling coefficient and friction coefficient are the main influencing factors of the conveying capacity,which can be used as the input of the neural network intelligent prediction model.
The influencing factors of screw conveying capacity of concrete distributor are investigated to provide the basis for the determine the input layer of artificial neural network model for prediction the conveying capacity.The distribution mechanism of the concrete distributor and the formula for calculating the conveying capacity of the distributor were derived,and the single variable analysis method was used to study effect of the influence factors on the conveying capacity by simulation with MATLAB and discrete element software.The results showed that the conveying capacity was increased with the increasing of screw blade diameter and filling coefficient,and decreased with increasing the friction coefficient and screw shaft diameter increase.There is an optimal value for spiral lift angle and spiral speed to maximize the conveying capacity.The sensitivity of influence factors to conveying capacity from large to small is spiral lift angle(1.32 t/h),screw blade diameter(0.99 t/h),filling coefficient(0.91 t/h),friction coefficient(0.59 t/h),screw shaft diameter(0.382 t/h).The screw blade diameter,spiral lift angle,screw spiral speed,filling coefficient and friction coefficient are the main influencing factors of the conveying capacity,which can be used as the input of the neural network intelligent prediction model.
引文
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[16] ZHANG P,JIANG Y,LI Y,et al.Experimental and simulative failure analysis of AISI 316L stainless steel screw shaft[J].Journal of failure analysis and prevention,2018(18):799-808.
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[18] 王仁标.L型螺旋卸船机水平螺旋输送机理研究[D].武汉:武汉理工大学,2013.(WANG Renbiao.Study on the mechanism of horizontal spiral conveyor of L-type spiral ship unloader[D].Wuhan:Wuhan University of Technology,2013.)
[19] 向冬枝,徐余伟.螺旋输送机设计参数的选择和确定[J].水泥技术,2010(1):29-33.(XIANG Dongzhi,XU Yuwei.Selection and determination of design parameters of spiral conveyer[J].Cement technology,2010(1):29-33.)
[20] 贾宏禹,吴帮雄,孙文斌.水平螺旋输送机输送规律及摩擦系数的影响研究[J].机械设计与制造,2017(9):236-239.(JIA Hongyu,WU Bangxiong,SUN Wenbin.Study on the transport law and friction coefficient of horizontal spiral conveyer [J].Machinery design & manufacture,2017(9):236-239.
[2] LI D,ZHOU P,FAN L,et al.Research on multi-agent control system for concrete distribution[C].Romania:IOP conference series-materials science and engineering,2018.
[3] 孙红,孙健,吴玉厚,等.大型智能PC构件自动化生产线简介[J].混凝土与水泥制品,2015(3):35-38.(SUN Hong,SUN Jian,WU Yuhou,et al.Introduction to large intelligent PC component automation production line[J].China concrete and cement products,2015(3):35-38.)
[4] 于明,任霞,刘兴刚,等.混凝土预制构件关键技术研究及成套装备开发[J].科技创新导报,2015,12(30):67-68.(YU Ming,REN Xia,LIU Xinggang,et al.Research on key technology of concrete prefabricated components and development of complete sets of equipment[J].Science and technology innovation guide,2015,12(30):67-68.)
[5] DADHICH S,SANDIN F,BODIN U,et al.Field test of neural-network based automatic bucket-filling algorithm for wheel-loaders[J].Automation in construction,2019,97:1-12.
[6] YU S,ZHU K,DIAO F.A dynamic all parameters adaptive BP neural networks model and its application on oil reservoir prediction [J].Applied mathematics and computation,2008,195(1):66-75.
[7] ISLAM B,BAHARUDIN Z,NALLAGOWNDEN P.Development of chaotically improved meta-heuristics and modified BP neural network-based model for electrical energy demand prediction in smart grid[J].Neural computing and applications,2017,28(S1):811-891.
[8] AHAMAD K U,RAJ P,BARBHUIYA N H,et al.Surface water quality modeling by regression analysis and artificial neural network[C]//Advances in waste management.Singapore:Springer,2019:215-230.
[9] MENACER F,DIBI Z,KADRI A.Modeling a new acetone sensor based on carbon nanotubes using finite elements and neural network [J].The European physical journal plus,2018,133(6):238-254.
[10] 梅潇,王伟,刘海洋,等.大倾角螺旋输送机中物料颗粒的运动特性研究[J].机械设计与制造,2018(增刊2):19-22.(MEI Xiao,WANG Wei,LIU Haiyang,et al.Research on kinematic characteristic of particles in steeply inclined screw conveyor[J].Machinery design & manufacture,2018(S2):19-22.)
[11] 毛广卿,王志山,关二旗.全充填的水平圆管螺旋输送机物料运动分析及输送量计算[J].河南工业大学学报(自然科学版),2018,39(6):94-98.(MAO Guangqing,WANG Zhishan,GUAN Erqi.Material movement analysis and conveying amount calculation of fully filled horizontal pipe spiral conveyor[J].Journal of Henan university of technology(natural science edition),2018,39(6):94-98.)
[12] 杨健,李新闻,柳伟兵.挤出式奶油输送机特性分析及优化设计[J].食品与机械,2018(7):78-82.(YANG Jian,LI Xinwen,LIU Weibing.Characteristic analysis and optimization design of extrusion cream conveyor[J].Food & machinery,2018(7):78-82)
[13] 陶贤伟,谢卫国.浅谈滑模式水泥混凝土摊铺机螺旋布料器的设计[J].建设机械技术与管理,2007,20(2):86-88.(TAO Xianwei,XIE Weiguo.The design of spiral dumper of slip mode cement concrete pavers[J].Construction machinery technology & management,2007,20(2):86-88.)
[14] 李民孝.沥青混合料摊铺机螺旋分料器设计计算及参数分析[J].筑路机械与施工机械化,2000,17(4):2-4.(LI Minxiao.Design calculation and parameter analysis of screw separator of asphalt mixture paver [J].Road construction machinery and construction mechanization,2000,17(4):2-4.)
[15] 邱文东,游小平,朱奇,等.沥青砼摊铺机螺旋分料器输送机理及参数改进[J].公路与汽运,2008(1):143-147.(QIU Wendong,YOU Xiaoping,ZHU Qi,et al.Transport mechanism and parameter improvement of spiral separator in asphalt concrete paver[J].Highway and transportation,2008(1):143-147.)
[16] ZHANG P,JIANG Y,LI Y,et al.Experimental and simulative failure analysis of AISI 316L stainless steel screw shaft[J].Journal of failure analysis and prevention,2018(18):799-808.
[17] GAIVORONSKII V F,POSTORONKO A I.Effect of geometric parameters on the productivity of a screw conveyor vacuum-press when molding ceramic green mixes[J].Glass & ceramics,2010,67(1/2):56-58.
[18] 王仁标.L型螺旋卸船机水平螺旋输送机理研究[D].武汉:武汉理工大学,2013.(WANG Renbiao.Study on the mechanism of horizontal spiral conveyor of L-type spiral ship unloader[D].Wuhan:Wuhan University of Technology,2013.)
[19] 向冬枝,徐余伟.螺旋输送机设计参数的选择和确定[J].水泥技术,2010(1):29-33.(XIANG Dongzhi,XU Yuwei.Selection and determination of design parameters of spiral conveyer[J].Cement technology,2010(1):29-33.)
[20] 贾宏禹,吴帮雄,孙文斌.水平螺旋输送机输送规律及摩擦系数的影响研究[J].机械设计与制造,2017(9):236-239.(JIA Hongyu,WU Bangxiong,SUN Wenbin.Study on the transport law and friction coefficient of horizontal spiral conveyer [J].Machinery design & manufacture,2017(9):236-239.