ExciteTimingDrive基础培训-液压链条张紧器

1、ADVANCED SI M U L ATIOAcousticscruisebruiADVISORexciteDesignerexcitePower UnitexcitePiston & RingsexciteTiming DriveTirehvdsim基础培训液压链条张紧器excitePower UnitPiston & RingsTiming DriveADVANCED SI M U L ATIOAcousticscruiseADVISORexciteDesigner张紧器：升压和泄 压特性对皮带啮合跳 动和啮合力的影响 Dynamic Meshing Behaviour o

2、f Tensioner: Check & Relieve Valve (Belt: Mating disturbances, Tooth Climbing) and Contact ForceshvdsimI TECHNOLOGIE液压链条张紧器hydraulic Chain Tensioner补偿磨损造成的链伸长Compensation of chain elongation (wear)提供预紧力和阻尼Provides pre-tension and initiates damping传递链到机体的力Transmits forces from the chain to the st

3、ructure由于较高的阻尼导致高频范围隔 振不良Poor isolation in high frequency range due to high damping n chain whine excitation 为调整链驱动动力学特性的唯一 可变动的零件Usually the only component to be changed in order to improve chain drive dynamics: dilemma of “fixed" chain drive layouts at late design stagesTiming Drive液压单元正时系统中的

4、液压单元液压挺柱液压张紧器液压间隙调节器液压系统包括： 液体容腔液压连接-容腔间的连接关系液压机械连接-容腔和质点之间的连接关系3Timing Drive通用液压单元Generic Hydraulic Elements4Timing Drive#Timing DriveElement Name pil s叩卩忖供油月空Fluid data table卜巳张d Oil调入：流体特性表r-C standard hydraulic wlume 标准液力容积Initial volume of fluid chamberInitial pressure in the fluid chamberIniti

5、al gas volume in the fluid chamberElement Name forking volumePressure DataConstant Pressure定常或可变的数据表Pressure|6.3bar-Q Predefined预定压力-C edefined pressurePressure Data Constant PressurePressure (100000|液压容月空Hydraulic Volume 3 自由度Three (3) DOFs:压力 Pressure液体容腔Fluid Volume气体容腔Gas Volume可使用所有自由度All DOFs

6、are always enabled液压连扌妾 Hydraulic Connection液力连接Hydraulic ConnectionHydraulic两个液力容腔的连接Connects two Hydraulic VolumesHlic VolumeHzdrlic Volume定义容腔之间的相互作用(流量)Defines interaction between volumes (flow rate)可用于三种流动单元Three FLOW UNITS:管道流动Line 节流阀流动Throttle & Valve泄漏 Leakage5Hydraulic ElementsHydrauli

7、c VolumeHydraulicHydraulic VolumeHydromechanicTiming Drive液压机械连接-两种方式1st type连接容腔和质点单元传递受力和压力两种流动方式： 柱塞式 容腔体积/压力的变化2nd type 液压连接和质点之间的连接定义动量流动的部件7Timing Drive通用液压单元连接模型、 Connection流体特性表 Fluid Properties and CompressibilityFluid data nameIterated OilFluid density 密度|825kg/mA3Dynamic viscosity动力粘Pa.sV

8、iscosity / pressure coef |1.436e-0081/Pa祜丿主承釵Fluid Data Table随压力变化的压缩模量PressureBulk modulusPaPa109410000Add250000075300000Remove310000002.117e+008415000003.435e+008Clear All520000004.565G+008.Load630000006.231 e+008 Save740000007.087e+008一860000008.094e+008ViewTiming Drive计算润滑油的动力特性UtilitiesHelpCalc

9、ulate Bulk Modulus TableLicense File Definition.Python ScriptsBulk Modulus of Pure OilReference PressurePolytropic Exp orientMPaMPa1.6e+0091.4e+009 -1.2e+009-Aeration 3% (NAnA2)2e+0081 e+0098e+0086e+0084e+OOSCHANNEL = UNIT = 'NSTART = 0. OOOOOOBEGIN#iF- Calculated Bulk Modulus - aeration 003. 0%

10、essure','bulk modulus' ''N/mA2 *Save Calculated Data irOutput Files PathOutput Files Base NameEMD o.oooooooe+ooo 1.0000000e+005 5.0000000e+005 l.OOOOOOOe+OOS 2.0000000e+006 3.0000000*06 4. OOOOOOOe-i-OOG 5.00000000+006 &.OOOOOOQe4-QOO 7.0000000e4-G06 8.0000000P4-006 9.0000000

11、e+006 1.0000000e4-007 1.1000000e-i-007 1.2000000e-i-007 1.30000000+007 1.4000000e4-007 1.5000000A4-007 1.70000000+007 2.0000000e4-007 2.5000000*07 3. OOOOOOOe-i-OO?4.9623436&4-D064.9623436曰1)067. 0600879&4-0G7 2.0557149&4-008 5.0767781G+0087. 55602530089. 3420992曰008 1. 0599688曰Og 1.1495

12、595e+D09 1.214812 5 曰DO 9 1.2634921&4-0091. 300644 7&4-0091.3295919e+D091. 3525648分0091. 37L0960&1-D091. 3802&13e+DQ91. 3988316&4-009 1.4093702&4-009 1.425Q229&4-00Q 1.442192 53009 1.4607521e+D09 1.4 71095 3 屮09.5e+0073e+0079Timing Drive通用液压单元OGeneric Hydraulic Elements H

13、ydraulic Volume - DOFs and Properties10OLsoouEisisa|EUO!i!pp/szoooasauj!j_ sooi .S200HSOOOO-E-1 oooo-I - 1000 0Lsoooo-£000 0-wooo环£科邨爪Old aun ui aiey mo|juoijisubji mo| iuo|nqrn ojEuiiuenrSOOOO*-9000 0liun moh eun9AIJQ SUIIUMuoijoauuoo oiineupAH 爭辜刃廖Timing Drive连接模型Name (ID) |丽已管道流动7 line

14、r tnrottle .valve 厂 leakageLine |Fluid data tablelength彳OP叫fi5mm管道长度Aerated Oilwall roughness |O OO15 " mm管道内表面粗糙度e hydraulic diameterC cross-sectional areaB管道直径mmr-l" Conside日timri of additional flow resistance Flow resistance dataConstant flow resistance 丄Flow resistanEBp连接：容积1容积2Name (I

15、D) |lea后g巳泄;漏-line r throttle _valve P leakageLeakage |Fluid data table |Aerated OilC plane gap Q ring gapZl机油特性随压力变化的压缩模量Outer ring diameterW.9外径mmInner ring diameter10-8内径mmGap height dataConstant gap height定常/变化间隙門Gap heightI50半径间隙microna const.gap lengthC gap length with motion sha巳 C variable g

16、ap lengthGap length 25mm间隙长度1 st Connected Volume:working volume宀 ，“、2nd Connected Volume:chain casing连接：工作谷积一链条套官接头12dp6 auEiddED ouiyliup Moy e6e>|E0-|9AUQ 3UIUII1uoipauuoo onnejpAH 爭至刃腿乙LApogldo屮6ue| degisffi+wHydrau-ic ConnecHonTiming DriveThro 注 e 8 va-ve Fow UniiDisk va_vew14连接模型Timing Driv

17、e#* OpEn”Variable effective flow area 可变/常数Relative Displacement随位移或时间变化二check valve spring (13)阻阀簧ZU号移或旋转自由度2Hflow area二Name (ID)phmttl巳胸比节流阀厂 line R throttle .valve 厂 leakage 连接类型Throttle &7毗 节流阀Fluid data table lAerated Oil流体特性表C calculate flow area Q 卩rescribed effective flow area给定有效流动面积Eff

18、ective flow area dataE倉效流动面积，随变化 | 即 endency：onnectlonOF of Motion运动自由度ffective area data table#AbscissaOrdinate厂Shift00rScale11Transformations数据调整因子View Table. I#Flow resistance dataConstant flow resistanceFlow resistance10流阻，常=101st Connected Volume:oil supply 连接：机油供给一工作容积2nd Connected Volume: wor

19、king volume液压机构连接 Hydromechanic ConnectionTiming Drive液 力 机械连扌妥 Hydromechanic Connection - 2 typesHwrir nniFirihariiuMa33Hydraulic Volume类型 1 1st type连接液力容腔与质量单兀Connects Hydraulic Volume to Mass element将压力转成总力 Transforms pressure to force用于两种单兀 Two flow units can be defined:柱塞 PlungerHydraulicHydrau

20、lic VolumeHydraulic VolumeHydromechanic类型2 2nd type连接液力连接与质量单元Connects Hydraulic Connection to Mass element用于动力流动单兀One or two Momentum Flow Units can be definedMass变化或流动容积Volume Change/Flow16液压机构连接 Hydromechanic ConnectionPlunger Flow UnitVolumeVolumePressure, Flow ratePressure, Flow ratePlunger mot

21、ionPlunger motionF Force on plungerFm Force in direction of plunger motionVolume Change/Flow Flow UnitPressureFmFmmConnected BodyConnected BodyBody motionBody motionF Force on bodyFm Force in direction of body motionF Force on bodyFm Force in direction of body motion17连接模型屮旺Hi朗还卜Timing Drive#|plunge

22、r working volumeName (ID)Definition ofD2D 1 维或2维F plunger r flowT rnornenturmrnornenturn21D | Plunger |Active System: Mass/hydraulic volume 质量单元一液力容积Name (ID)|plunger_working volumeDefinition of 1D r 2D 1 维或2维连接类型 plunger 厂 flew 厂 momentum 1 厂 mo mentum 21D Pluiger |Cross-sectional area (perpendicul

23、ar to direction vector - force):#Coordinate system for definition of force/motion direction|lnertial coordinate system 坐标系XYZDirection vector - force0-cos(alpha)=sin(alpha)r Direction vector - motion0-0.984807750.17364818运动矢量方向力的矢量方向Connected Body:plunger UnkPoint: 1 (CoG)Connected Volume/Connection

24、: working volumeCross-sectional area data Constant areaCross-sectional a巳3横截面积|91 6mmA2Name (ID)|plunger workingvolumeDefinition of P 1D r 2DP plunger 17 flow 厂momentum 1 厂 momentum:1D | Plunger Flow流动Cross-sectional area dataConstant areaCross-sectional at巳3横截面积”mmA2Flow/change in volume dataConsta

25、nt flowFlow/change in volume1mmA3/s18#19液压机构连接 Hydromechanic ConnectionTiming DrivecoHribsng fow for 12Momentum uniiMomentum Flow UnitPrinciple of applicationFlow rate from connected Hydraulic Connection with contribution assigned to the Momentum flow unitConnected Mass elementFlow direction at firs

26、t endPlPressure taken from the FIRST connected volumeLink Point on Connedcted MassDensity of the fluid in the SECOND connected volumeFlow rate from connected Hydraulic Connection with contribution assigned to the first Momentum flow unitPressure taken from the SECOND connected volumeDensity of the f

27、luid in FIRST volume1 - First Momentum flow unit2 - Second Momentum flow unit2021连接模型Timing Drive#|Hydromechanic1Mm巳（ID）1维或2维Definition of 1D r 2D厂 plunger 厂 flow 17 momentum 1 厂 momentum21D | Momentum 1st end |Active System: Mass/hydraulic connection 质量单元液力容积Cocir din ate system for definition of f

28、orce directions llnertial coordinate system 坐标系XYzP Direction vector - flow at 1 st end100r Direction vector - flow at 2nd end100#液压张紧器 Hydraulic Tensioner张紧器工作循环压力特性Characteristics of different Tensioner Types22液压张紧器 Hydraulic Tensioner#液压张紧器 Hydraulic TensionerTensioner with Orifice30 HZ100 HZ200

29、Hz - Supply pressure0.2-0.1 o 0.10.2Plunger travel mm23液压张紧器 Hydraulic TensionerTest rig conditions: harmonic excitation of plunger +/- 0.2 mm 30/100/200 Hz试验条件：柱塞简谐激励：振幅+/-0.2mm频率30/100/200 Hz#液压张紧器 Hydraulic Tensioner24液压张紧器 Hydraulic Tensioner张紧器台架试验Tensioner Rig Test#液压张紧器 Hydraulic TensionerTim

30、ing DriveModelphinger物理模型泄油retainer spti ng 保持弹簧engine block(ground)Leakage chain caisethrottel valve节流阀working volume 工作容积26液压张紧器 Hydraulic Tensioneroil suppl)Timing Driveplungerihiottcl valve 汽(Re)leakagechain caiscHydraulic Tensionerretainer spn ngworking volumegroundaoil supply工作容积working Volume

31、保持弹簧 retainer spring 歆Lexcitation subsystemthrottle valve节流阀八plunger in oilleakage;pressure=flow rate+0.001 pressure=0.001 Pachain drive casing (constant pressure)excitation rodrelative pressure=flow rateReynolds dependent zeta28液压张紧器 Hydraulic TensionerResults00.05液压张紧器 Hydraulic Tensioner00.05液压张紧

32、器 Hydraulic Tensioner1000 rpmPressure Pa一 oil supplypi$ (measured)00.05液压张紧器 Hydraulic Tensioner00.05液压张紧器 Hydraulic TensionerPressure Pa. oil supply pis (measured)6 5 4 3帀 dOJncng3d0.01250.0250.0375Time s00.05Timing Drive24Timing Drive1500pmPressure Pa一 oil supplypis (measured)0.01750.0350.05250.07

33、7565554535 G.54.3 22500 rpmPressure Paoil supplypi$ (measured)0.011250.0225Time s0.0337524液压张紧器 Hydraulic TensionerTiming DrivePlungerMechanic ComponentModelMoving parts:Ballrigid bodyPlungerrigid bodyStops:Ball's Seatspring-damper unitCagespring-damper unit with lashSprings:Valve Springpre-load

34、ed springdamper unitRetainer Springpre-loaded springdamper unitHydraulic componentModelVolume / hydr. mediumaerated oilpressure dependant bulks modulus, constant viscosity, constant densityValves:relief valve, check valvehyd resistance with variable flow area and loss factor dependant on Reynolds nu

35、mberOrifice, gaps and ventilation:ventilation, working orifice, ring gaphyd. resistance depending on Reynolds numberBoundary condition:oil supply, ambientconstant pressure boundary condition25ADVANCED SI M U L ATIOAcousticscruisebruiADVISORexciteDesignerexcitePower UnitexcitePiston & Ringsexcite

36、Timing DriveTirehvdsimTECHNOLOGIE附：通用元件“Generic Purpose Elements=通用集中质量刚体General Rigid Bodies通用腔体与力General Volume andForce通用流动单元General Flow Elements详细的接触机理Detailed ContactMechanics通用、专用、宏单元Timing Drive专用单元、通用单元和宏单元根据问题复杂程度，采用不同模块类型专用单元：如凸轮Cam、弹簧Spring液压挺柱HLA等，根据零件特征内部已设定 部分边界条件和自由度等。输入数据简单、计算快捷Specific Elements: