Abstract：As the "heart" of the super-high pressure water jet cutter,intensifier′s running parameters control the capability of whole equipment.Differential equations with different time were found based on the Newton second law and the compressible equation of water.The numerical solutions were gained from MATLAB software.The analysis reveals that the hydraulic pressure is an important parameter and the intensifier has different moving characteristics in three different displacement time.First,the velocity increases continually with the decreasing acceleration;then the velocity decreases with the acceleration increasing;finally the velocity decreases with the acceleration decreasing.In the entire displacement,the maximum velocity is higher than the average velocity.Lastly,the results are compared with the experiment and proved to be reasonable.
[1]Wang J,Guo D M.The cutting performance in multipass abrasive waterjet machining of industrial ceramics[J].Journal of Materials Processing Technology,2003,133(3):371-377.[2]田长流,孟超.非定常水射流的调制原理及调制方法[J].排灌机械,2005,23(3):35-38.Tian Changliu,Meng Chao.Modulation mechanism and modulation methods of unsteady water jet[J].Drainage and Irrigation Machinery,2005,23(3):35-38.(in Chinese)[3]赵红,张铁柱,张洪信,等.三缸内燃式水泵输出压力及流量[J].江苏大学学报:自然科学版,2008,29(4):322-325.Zhao Hong,Zhang Tiezhu,Zhang Hongxin,et al.Output pressure and flux of three cylinder internal combustion water pump[J].Journal of Jiangsu University:Naturnal Science Edition,2008,29(4):322-325.(in Chinese)[4]魏欣.基于相位式增压器的磨料水射流切割机及切割模型的研究[D].南京:南京理工大学,2002.[5]Hoogstrate A M,Susuzlu T,Karpuschewski B.High performance cutting with abrasive waterjets beyond 400 MPa[J].CIRP Annals Manufacturing Technology,2006,55(1):339-342.[6]Mustafa Kemal Kulekci.Processes and apparatus developments in industrial waterjet applications[J].International Journal of Machine Tools and Manufacture,2002,42(12):1297-1306.[7]Susuzlu T,Hoogstrate A M,Karpuschewski B.Initial research on the ultra high pressure waterjet up to 700 MPa[J].Journal of Materials Processing Technology,2004,149(1-3):30-36.[8]Hashish M,Steele D E,Bothell D H.Machining with super pressure (690 MPa) waterjets[J].International Journal of Machine Tools and Manufacture,1997,37(4):465-479.[9]雷玉勇,宋清俊,杨桂林,等.基于SIMULINK的水射流动态特性仿真[J].机床与液压,2007,35(4):125-128.Lei Yuyong,Song Qingjun,Yang Guilin,et al.Numeric simulation of dynamic performance of water jet based on SIMULINK[J].Machine Tool & Hydraulics,2007,35(4):125-128.(in Chinese)[10]叶晓琰,杨孙圣,许建强,等.基于CFD技术的高压泵液力端优化设计[J].排灌机械,2008,26(6):31-35.Ye Xiaoyan,Yang Sunsheng,Xu Jianqiang,et al.Optimization design for hydraulic end of high pressure pump[J].Drainage and Irrigation Machinery,2008,26(6):31-35.(in Chinese)[11]肖民,惠磊.Matlab与Intouch间直接通讯的实现[J].江苏大学学报:自然科学版,2009,30(1):62-65.Xiao Min,Hui Lei.Direct communication between Matlab and InTouch[J].Journal of Jiangsu University:Naturnal Science Edition,2009,30(1):62-65.(in Chinese)
