輪胎結(jié)構(gòu)設(shè)計(jì)課件

FEMApplicationonTireDesign錦湖輪胎TireSimulationTechnology1.有限要素法介紹2.輪胎結(jié)構(gòu)說明特征3.輪胎結(jié)構(gòu)說明體系4.輪胎結(jié)構(gòu)說明例題

5.結(jié)論及希望效果目錄有限要素法(FiniteElementMethod)?

把像輪胎的結(jié)構(gòu)物分割成有限個結(jié)構(gòu)物，對分割的要素各自創(chuàng)

建平衡方程式，把這組合到全體要素，對聯(lián)力方程式求近似解（變位，應(yīng)力，變形率）的數(shù)值解析方法。

有限要素法不是絕對的性能預(yù)測，而是以相對

Version

Ranking工具使用。

有限要素法定義

FFBasicElasticity有限要素法正式化

PotentialEnergy:

VirtualWork:

FinalEquation:1.Tread2.Carcass3.Belt4.Sidewall5.Bead6.Innerliner7.Capply8.Flipper9.ApexComplicatedtiregeometryPerformancesimulationsystem(KADAS)Powerfulcomputingsystem(HPSuperdome)Complexnonlinearfeatures輪胎結(jié)構(gòu)說明特征材料的非線形性-MaterialNon-Linearity

HyperelasticMaterialModel

Moony-RivlinModel系列

(O)

OgdenModel系列經(jīng)濟(jì)條件的非線形性-Contact&Friction

Contactcondition

Frictionconditionhp

Frictionconstraint<cr=0(stick)=cr>0(slip)Penaltymethod

Contactconstrainth>0p=0(nopressure)h=0p>0(contactpressure)Lagrangemultipliermethodcr區(qū)域S/WH/W用途結(jié)構(gòu)設(shè)計(jì)CATIAV4(2)IBMRS/6000

輪胎設(shè)計(jì)圖形處理

Mold制作圖形處理CATIAV5(19)IBMZ-ProCADOT(In-house)IBMZ-Pro

統(tǒng)一

CAD結(jié)構(gòu)設(shè)計(jì)體系結(jié)構(gòu)說明ABAQUSV6(15)HPSuperdome

結(jié)構(gòu)說明FEMSolverIDEASV10(6)HPB2600

結(jié)構(gòu)說明

Pre/PostProcessingKADAS(In-house)HPL3000

統(tǒng)一FEM結(jié)構(gòu)說明體系流體說明MSC.Dytran(1)HPSuperdome

結(jié)構(gòu)+流體說明FVMSolver流動說明Polyflow(2)HPSuperdome

橡膠流動說明FEMSolver東力學(xué)說明MSC.ADAMS(1)IBMM-Pro

動力學(xué)說明

Solver噪音說明SYSNOISE(1)HPB2600

噪音說明BEMSolverKUPAS(In-house)ISMZ-Pro

統(tǒng)一花紋性能預(yù)測體系CAD/CAE體系現(xiàn)況????????????????????????????/Mold/??????????????????????????????/Mold/??????Simulation????????KADASKADAS?????KADAS?????Wear&TractionSimulationNoise&VibrationSimulationDurability&RRSimulationRide&HandlingSimulationDesignOptimizationTireSimulationTechnology?1???2???3??TireonlySmoothtireStaticanalysisTireonlyPatterntireSteadyrollingTire+vehiclePatterntireTransientrollingStrainenergyFootprintpressureSpringrateTemperatureForce&momentFrictionalenergyModalfrequencyHydroplaningDurability&RRRide&handlingWear&TractionNoise&vibrationCAD/CAEseparationCAEprofessionalsCAD/CAEinterfaceFewengineersCAD/CAEintegrationMostengineers?????????????1995~2000(??)???1??(Vector)2001~2006(??)???2??(SMP)2007~2010(??)???3??(Cluster)????KADAS?????

1.TireStaticAnalysis

??????????????

???????????

????????????????.Simulationitem:Strainenergy,Footprintpressure,Springrate,Cordtension,DimensionTirestaticanalysismodelStraindistributionaroundtire

TireStaticAnalysis

2.TireThermalAnalysis

??????????????????????,????

???????????????.Simulationitem:Temperature,RollingresistanceHysterisisLossHysterisislossofrubberTemperaturedistributioninsidetire

3.TireSteadyRollingAnalysis

??????????????

??????????????

?????????????.Simulationitem:Force&moment,Strainenergy,Footprintpressure,Springrate,Cordtension,DimensionLateralForceVerticalForceInflationPressureTirerollinganalysismodelTiredeformedshape

TireSteadyRollingAnalysis

4.TireModalDynamicAnalysis

??????????????

??????????NVH

(Noise,Vibration,andHarshness)??????.Simulationitem:Modeshape,Naturalfrequency,FrequencyresponseTiremodeshape(2ndmode)Frequencyresponsefunction(FRF)

5.PatternTireRollingAnalysis

????????????/???????????????????,

????????????.Simulationitem:Force&moment,PRAT(PlysteerResidualAligningTorque)Frictionalenergy,Footprintpressure(Patterntire)VerticalloadRotationPressureSlipangleForce&moment(PRAT)prediction

PatternTireRollingAnalysisa2a1LateralForce(N)AligningTorque(N-m)RCFPRATLateralforceAligningTorqueSlipangle

PatternTireAnalysis

7.TireExplicitDynamicAnalysis

???????????????/?????????????????????NVH??????.Simulationitem:Cleatimpact,Cornering,Standingwave,DrytractionLongitudinalVerticalCleatimpactanalysismodelTireforcevariationduringcleatimpact

CleatImpactAnalysis??????????????????????Standingwave??????,???Criticalspeed????????????????.

7.TireExplicitDynamicAnalysis

StandingWaveAnalysis(CriticalSpeed)Axleforce

StandingWaveAnalysis

ESCOT???????????????????????????????????????????????.

ESCOT????????????????????????????????????????????????????.

ESCOT?Excellent&SmartContourOptimizationTheory?????????????????Escort??????????.

8.TireShapeOptimizationAnalysis?????????????????????????????

???????????????????????????????????????????.Final??Proto??ESCOT-1(??????)????????????????????????????????????.???????????????,???????????????????????????.Proto??Final??ESCOT-2(???????)Final??Proto???????????????????,???????????????????.ESCOT-3?????????????????????????????????????????.ESCOT-3(????????)

9.TireFractureAnalysis??????????Global-Local??????????????????????????.Simulationitem:Fatiguelifeinbeltedge&carcassedge0CracksizeTotalmileageGlobalanalysisLocalanalysisFatiguelife

10.TireUniformityAnalysis

????????,??,????????????????

????????Uniformity??????.Simulationitem:Lowspeeduniformity(RFV,LFV)InputSolvingOutput0Tire1??RFVForceTireuniformitysimulationprocedure

TireUniformityAnalysis