100_125马力轮式拖拉机电控液压悬挂系统研究.pdf

100-125TeA+d杨null坤(r/K,null224007)K1:通过对国内外大马力轮式拖拉机液压悬挂系统的技术现状及多年来对公司拖拉机产品的研究,提出了大马力轮式拖拉机电控液压悬挂系统的模糊控制策略和控制器研究方案b同时针对国内大马力轮式拖拉机的技术现状以及与国外同类产品的差距,考虑市场的接受程度和技术进步的渐进性,提出了黄海金马100-125马力轮式拖拉机电控液压悬挂系统研究的方向,建立液压悬挂系统电子控制的基本平台,实现大马力轮式拖拉机液压悬挂系统电子控制的基本功能b1oM:电控；悬挂；拖拉机ms|:TH137.9nullnullnullDSM:AnullnullnullcI|:1672-1616(2011)17-0077-04nullnullM,360SEug,Wggps,HrK(/e)#S=vT/1%sbvT|S#W1jvSg?Ztb%A+,LCvTA+?1p?LCSvT9gi_WbLCvTjBT+,LTTb1nullZ100-125TeA+d1je?:Eeaea8eaeaMqe；PRPRi=e,e?；jhED；-+d9e?bd1?beA+dZm1Ubvg$,E4SBoschRexrothedZ100-125TA+d/,1q:HER23OCA+dHeDaHER5-A+dHeDaea.a.a.a.1null-+.；2null-+eD；3null+eD；4null+e；5null-+e；6null.；7null0e；8nulle；9null46；10null.；11nullz.；12nullr.；13nullA,；14null.图1null电控液压悬挂系统的布置方案a.ar.aHERDeaHERDLb2nulleA+deTd,je1p9,4ae,A+dreA+d1=b3A+de!9ZE,ywd,MATnullLAB+dsYePIDel:2011-06-15Te:null(1969-),3,r/K)=,V,1VYjwT,T#*b77nullnullnullnullnullnull100-125TeA+d_,TV,e1.dPIDe?+de?1pb2.1null液压悬挂模糊控制工作原理2eA+d(InTEaaq)BdLYMv8d,v,1|zerT,AdLebA+eTm2Ub图2null液压悬挂模糊控制工作原理2.2null电控液压悬挂模糊控制器的建立2.2.1null分析系统的特点与输入输出变量A+8eaqT,esYaaq#MqM,A1DMbN),eeZT,In,e#MqdeM,uiM,Wnm3Ub图3null模糊规则编辑器2.2.2null变量的模糊化|e,de,ui(-66,sYv(NB)a(NM)al(NS)a,(ZR)al(PS)a(PM)av(PB)bInL=-66S=,.L=iuW,:L=abM,VMy=12b-a(x-a+b2)T|-66M,7L=-mmM,VYV1k=6m-66b2.2.3null模糊推理系统的建立GUIewdMamdanid,e,de,uiba.bf4,erTYv,1p,4sOqf,A+d,T,#rMv,yN,A+dfsOq1p,M(f,Mfm4Ub图4nulle(de,ui)的隶属度函数b.?51beA+dw?5V1bV1nullwe?5NBNMNSZRPSPMPBNBPBPBPBPBPMPMPSNMPBPBPMPMPSPSZRNSPMPMPMPSPSZRZRZRPMPSPSZRNSNSNMPSZRZRNSNSNMNMNMPMZRNSNSNMNMNBNBPSNSNMNMNBNBNBNBnullnull?5V,VE=sEQ%,AUwV,M+M,dV,Me-1.98,Mde-1.58H,Mui3.42bu7w4(m5U)VM1w,m782011M9nullS/null40null176Ub图5null规则观测器图6null输入输出变量的隶属度关系2.3null仿真分析与实验3|#H1D+,YV1ke,kdkuyMeW,iOA+A+d.f=d:H(s)=10null31s2+0.62s+0.28bPMATLAB7,V1ke,kdkuae#.f,/A+dMATLAB/Simulinke_bA+dd_H,|F!|,0.26mb|-0null1m,z3s,m7UbeedEYwLb_TVn,|,d2sPr5!；|,d6s0.26mb图7null脉冲信号nullnullm8VA,dV,YHWy,bN,d.dPIDe_,_Tm9Ub图8null耕深响应曲线m9V:PIDev,THqvMH,PIDe4b图9nullPID控制仿真曲线7e$e?HW=Pd,iOeVe79nullnullnullnullnullnull100-125TeA+dM2,edL,iOMa,ZzbyN,MPIDe,e?4A+dTeCb.dPIDeM1,etHW,YwL9Mlbe1.dPIDe?d?1pbID:1nullnull,null,4.TFA+edJ.Sjy.；o#J.；/,1998,22(1):26-28.9nullIrvingB.LaserbeamweldingshiftsintohighgearJ.WeldingJournal,1997,76(11):35-40.10EmmelmannIC.RoboticlaserweldingintheautomotiveindusnulltryJ.Welding&MetalFabrication,1997,65(33):7-8.11GrafT,StauferH.Laser-hybridweldingdrivesVWimprovenullmentsJ.WeldingJournal,2003,82(1):43-47.EffectsofLaserWeldingontheMechanicalPropertiesandFracturalMorphologiesofGalvanizedSteelPlatesNITao1,TUYan1,LUJin-zhong2,ZHANGLei2,ZHANGYong-kang2(1.COSCO(Nantong)ShipyardLtd.Co.,JiangsuNantong,226006,China)(2.JiangsuUniversity,JiangsuZhenjiang,212013,China)Abstract:Itappliesfiberlasertoweldthegalvanizedsteelplatesintheseaequipmentandautomobileindusnulltry.Basedonthemeasurementofthehardnessofthebasemetal,heatedzoneandweldedjointingalvanizedsteel,itanalyzesthetensilepropertiesandfracturalmorphologiesoftheweldedjoints.Theresultsshowthatthestrengthandhardnessofthelaserweldedjointsarehigherthanthebasemetal.Thelowcarbonmartennullsiticstructureappearesi