Theoretical and experimental investigation on optimization of a non-contact air conveyor  

作　　者：钟伟 黎鑫 陶国良 路波 香川利春 

机构地区：[1]School of Mechanical Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China [2]Wuxi Pneumatic Technology Research Institute Co.Ltd.,Wuxi 214072,China [3]State Key Laboratory of Fluid Power Transmission and Control,Zhejiang University,Hangzhou 310027,China [4]Boyan Pneumatic Technology Institute of Ningbo,Fenghua 315500,China [5]Precision and Intelligence Laboratory,Tokyo Institute of Technology,Yokohama 226-8503,Japan

出　　处：《Journal of Central South University》2016年第2期353-361,共9页中南大学学报（英文版）

基　　金：Project(51205174)supported by the National Natural Science Foundation of China;Project(2014M550309)supported by the Postdoctoral Science Foundation of China;Project(GZKF-201407)supported by the Open Foundation of the State Key Laboratory of Fluid Power Transmission and Control,China

摘　　要：Air film conveyors equipped with porous pads have been developed to bring the liquid crystal display(LCD) into a non-contact state during transportation process. In this work, a theoretical model including flow property of porous media and Reynolds equation is established within a representative region in order to optimize the design parameters of a partial porous air conveyor. With the theoretical model, an optimization method using nondominated sorting genetic algorithm – II(NSGA-II) is applied for a two-objective optimization to achieve a minimum air consumption and maximum load capacity. Three Pareto-optimal solutions are selected to analyze the influence of each parameter on the characteristics of the air conveyor, and the results indicate that the position of the porous pads has the most significant impact on the performance and of course must be determined with care. Furthermore, experimental results in terms of the supporting force versus gap clearance show that the optimized air conveyor can greatly improve the load capacity over the normal one, indicating that the optimization method is applicable for practical use.Air film conveyors equipped with porous pads have been developed to bring the liquid crystal display（LCD） into a non-contact state during transportation process. In this work, a theoretical model including flow property of porous media and Reynolds equation is established within a representative region in order to optimize the design parameters of a partial porous air conveyor. With the theoretical model, an optimization method using nondominated sorting genetic algorithm - II（NSGA-II） is applied for a two-objective optimization to achieve a minimum air consumption and maximum load capacity. Three Pareto-optimal solutions are selected to analyze the influence of each parameter on the characteristics of the air conveyor, and the results indicate that the position of the porous pads has the most significant impact on the performance and of course must be determined with care. Furthermore, experimental results in terms of the supporting force versus gap clearance show that the optimized air conveyor can greatly improve the load capacity over the normal one, indicating that the optimization method is applicable for practical use.

关 键 词：OPTIMIZATION genetic algorithm porous media air conveyor pressure distribution 

分 类 号：TH22[机械工程—机械制造及自动化]