100-125TeA+d楊null坤(r/K,null224007)K1:通過對國內(nèi)外大馬力輪式拖拉機液壓懸掛系統(tǒng)的技術現(xiàn)狀及多年來對公司拖拉機產(chǎn)品的研究,提出了大馬力輪式拖拉機電控液壓懸掛系統(tǒng)的模糊控制策略和控制器研究方案b同時針對國內(nèi)大馬力輪式拖拉機的技術現(xiàn)狀以及與國外同類產(chǎn)品的差距,考慮市場的接受程度和技術進步的漸進性,提出了黃海金馬100-125馬力輪式拖拉機電控液壓懸掛系統(tǒng)研究的方向,建立液壓懸掛系統(tǒng)電子控制的基本平臺,實現(xiàn)大馬力輪式拖拉機液壓懸掛系統(tǒng)電子控制的基本功能b1oM:電控；懸掛；拖拉機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$,E4SBoschRexrothedZ100-125TA+d/,1q:HER23OCA+dHeDaHER5-A+dHeDaea.a.a.a.1null-+.；2null-+eD；3null+eD；4null+e；5null-+e；6null.；7null0e；8nulle；9null46；10null.；11nullz.；12nullr.；13nullA,；14null.圖1null電控液壓懸掛系統(tǒng)的布置方案a.ar.aHERDeaHERDLb2nulleA+deTd,je1p9,4ae,A+dreA+d1=b3A+de!9ZE,ywd,MATnullLAB+dsYePIDel:2011-06-15Te:null(1969-),3,r/K)=,V,1VYjwT,T#*b77nullnullnullnullnullnull100-125TeA+d_,TV,e1.dPIDe?+de?1pb2.1null液壓懸掛模糊控制工作原理2eA+d(InTEaaq)BdLYMv8d,v,1|zerT,AdLebA+eTm2Ub圖2null液壓懸掛模糊控制工作原理2.2null電控液壓懸掛模糊控制器的建立2.2.1null分析系統(tǒng)的特點與輸入輸出變量A+8eaqT,esYaaq#MqM,A1DMbN),eeZT,In,e#MqdeM,uiM,Wnm3Ub圖3null模糊規(guī)則編輯器2.2.2null變量的模糊化|e,de,ui(-66,sYv(NB)a(NM)al(NS)a,(ZR)al(PS)a(PM)av(PB)bInL=-66S=,.L=iuW,:L=abM,VMy=12b-a(x-a+b2)T|-66M,7L=-mmM,VYV1k=6m-66b2.2.3null模糊推理系統(tǒng)的建立GUIewdMamdanid,e,de,uiba.bf4,erTYv,1p,4sOqf,A+d,T,#rMv,yN,A+dfsOq1p,M(f,Mfm4Ub圖4nulle(de,ui)的隸屬度函數(shù)b.?51beA+dw?5V1bV1nullwe?5NBNMNSZRPSPMPBNBPBPBPBPBPMPMPSNMPBPBPMPMPSPSZRNSPMPMPMPSPSZRZRZRPMPSPSZRNSNSNMPSZRZRNSNSNMNMNMPMZRNSNSNMNMNBNBPSNSNMNMNBNBNBNBnullnull?5V,VE=sEQ%,AUwV,M+M,dV,Me-1.98,Mde-1.58H,Mui3.42bu7w4(m5U)VM1w,m782011M9nullS/null40null176Ub圖5null規(guī)則觀測器圖6null輸入輸出變量的隸屬度關系2.3null仿真分析與實驗3|#H1D+,YV1ke,kdkuyMeW,iOA+A+d.f=d:H(s)=10null31s2+0.62s+0.28bPMATLAB7,V1ke,kdkuae#.f,/A+dMATLAB/Simulinke_bA+dd_H,|F!|,0.26mb|-0null1m,z3s,m7UbeedEYwLb_TVn,|,d2sPr5!；|,d6s0.26mb圖7null脈沖信號nullnullm8VA,dV,YHWy,bN,d.dPIDe_,_Tm9Ub圖8null耕深響應曲線m9V:PIDev,THqvMH,PIDe4b圖9nullPID控制仿真曲線7e$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