離合器的相關(guān)計(jì)算.ppt

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Simulation designtools仿真及設(shè)計(jì)工具 Clutchcalculation離合器計(jì)算 3 Clutchcalculation離合器計(jì)算 ClamploadcalculationCOEFtesttechniqueRangelawsClutchtorqueThermaladaptationStart upenergyDecisiontable curvesLifetimecalculationWeartesttechniquesCalculationcode 工作壓力計(jì)算COEF試驗(yàn)技術(shù)范圍確定的原則離合器扭矩?zé)崮艿钠ヅ鋯?dòng)的能量判定表及曲線壽命的計(jì)算磨損試驗(yàn)的技術(shù)計(jì)算規(guī)則 Clamploadcalculation工作壓力計(jì)算 5 Clamploadcalculation工作壓力計(jì)算Clutchtorquecapacity離合器傳扭能力 Calculationoftheclutchmaximumtorquecapacity離合器最大傳扭能力計(jì)算 離合器傳遞扭矩壓緊載荷摩擦系數(shù)作用半徑摩擦面數(shù)目 6 RatingandanalysisoffrictioncoefficientWearratingandanalysisAnalysisofthermalclutchissue Clamploadcalculation工作壓力計(jì)算COEFFtesttechniqueCOEFF實(shí)驗(yàn)方法 定義和分析摩擦系數(shù)定義和分析磨損分析離合器熱能結(jié)果 7 Testcycle試驗(yàn)次數(shù) Clamploadcalculation工作壓力計(jì)算COEFFtesttechniqueCOEF試驗(yàn)技術(shù) 8 Clamploadcalculation工作壓力計(jì)算COEFFtesttechniqueCOEF試驗(yàn)計(jì)算 3energylevelsBasicEnergyLevel BEL EnergyissufficienttoinduceenoughwearinashortperiodoftimeMediumEnergyLevel MEL AverageenergybetweenBELandHELHighEnergyLevel HEL Harddutycyclebutremainingnon destructive2temperaturelevels80and200 C 3種能量水平基本的能量水平 BEL 在短期內(nèi)吸收由于磨損產(chǎn)生足夠的能量中等能量水平 MEL 處于基本和高的之間高的能量水平 HEL 在惡劣的條件下循環(huán)但是沒(méi)有破壞2個(gè)溫度水平80和200 C 9 Clamploadcalculation工作壓力計(jì)算COEFFtesttechniqueCOEFF試驗(yàn)技術(shù) 10 Clamploadcalculation工作壓力計(jì)算Torquemeasurement扭矩測(cè)量 OD Outerdiameteroffacing摩擦片外徑ID Innerdiameteroffacing摩擦片內(nèi)徑 扭矩 Nm 摩擦系數(shù)計(jì)算 壓緊力 摩擦片面數(shù) 摩擦片外徑 摩擦片內(nèi)徑 平均扭矩 11 Clamploadcalculation工作壓力計(jì)算Measurementofthefrictioncoefficient 測(cè)量摩擦系數(shù) Forastep Frictioncoefficient minicourant definition對(duì)每一階段 記錄發(fā)現(xiàn)最小的摩擦系數(shù)Forthetest Frictioncoefficient minicourant definition對(duì)試驗(yàn) 記錄發(fā)現(xiàn)最小的摩擦系數(shù)Minimalvalueofthe minicourant ofallthesteps所有的階段中最小值的 12 Frictioncoefficientvalueforclamploadcalculation用摩擦系數(shù)對(duì)工作壓力進(jìn)行評(píng)價(jià) Clamploadcalculation工作壓力計(jì)算Measurementofthefrictioncoefficient 測(cè)量摩擦系數(shù) 摩擦系數(shù) 計(jì)算用摩擦系數(shù) 平均值 10 平均值 13 Calculationoftheclutchmaximumtorquecapacity離合器最大傳扭能力計(jì)算 Clamploadcalculation工作壓力計(jì)算Clutchmaximumtorquecapacity離合器的最大傳扭能力 離合器傳遞扭矩壓緊載荷摩擦系數(shù)作用半徑摩擦面數(shù)目離合器比率預(yù)載荷 軸承預(yù)載荷 沒(méi)有軸承預(yù)載荷 有軸承預(yù)載荷 14 Clamploadcalculation工作壓力計(jì)算Clutchmaximumtorquecapacity離合器最大傳扭能力 壓緊載荷 15 Clamploadcalculation工作壓力計(jì)算Energylevels方法能量水平 Thequestionishowtodetermineenergylevelsinordertohaveconsistenttestresultsvs clutchsizesTheanswerisarangelogicbuilton facingsurfacevs sizelawpressureplatemassvs sizelawpressureplatemassvs enginepowerlawenergylaw 針對(duì)離合器尺寸問(wèn)題在于如何確定能量的水平使得與試驗(yàn)結(jié)果一致回答建立在邏輯推理的上摩擦片表面與尺寸原則壓盤(pán)質(zhì)量與尺寸原則壓盤(pán)質(zhì)量與發(fā)動(dòng)機(jī)功率的原則能量原則 16 Clamploadcalculation工作壓力計(jì)算Facingsurfacevs sizelaw摩擦片表面與尺寸的規(guī)律 17 Clamploadcalculation工作壓力計(jì)算Pressureplatemassvs sizelaw壓盤(pán)質(zhì)量與尺寸的規(guī)律 18 Clamploadcalculation工作壓力計(jì)算Surfacetemperature表面溫度 Surfacetemperatureformula表面溫度公式 19 C f E S e 1 Conicalstrainvs energyandthickness錐型變形與能量和厚度 Clamploadcalculation工作壓力計(jì)算Conicalstrains錐型變形 20 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 50 100 150 200 250 300 350 400 EnergyinkJ Conicityinmm Thickness15mm Thickness26mm Thickness28mm 138kJ HELsize250 237kJ HELsize350 315kJ HELsize430 Finiteelementmethodresults有限元計(jì)算的結(jié)果Energydissipatedin3seconds能量分為3檔 Clamploadcalculation工作壓力計(jì)算Energylaw能量規(guī)律 21 Clamploadcalculation工作壓力計(jì)算Energylaw能量規(guī)律 22 Clamploadcalculation工作壓力計(jì)算Thermalfluxlaw熱能變化規(guī)律 23 Exampleofclamploadcalculation工作壓力計(jì)算的例子 Thermaladaptation熱能匹配 25 Thermaladaptation熱能匹配Start upenergycalculationvs theslope起步能量的計(jì)算與坡度 26 Thermaladaptation熱能匹配Start upenergyvs slope起步能量與坡度 27 Thermaladaptation熱能匹配Start upenergycalculationatwheelslipping在車(chē)輪滑動(dòng)下起步能量計(jì)算 28 Thermaladaptation熱能匹配Decisiontable判斷表 29 Thermaladaptation熱能匹配Start upenergycurvesvs usage起步能量曲線與應(yīng)用 30 Thermaladaptation熱能匹配Decisioncurves判斷曲線 Lifetimecalculation壽命計(jì)算 32 Lifetimecalculation壽命計(jì)算Basichypothesis最初假設(shè) 33 Weartestprocedure磨損實(shí)驗(yàn)程序 34 Lifetimecalculation壽命計(jì)算F202wearrate 430size F202磨損比率 430mm 35 52 5 105 158 210 50 C 80 C 110 C 150 C 0 61 0 15 0 07 0 035 0 5 0 12 0 08 0 04 0 55 0 14 0 1 0 05 0 1 0 05 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 F202wearinmmfor10000op rations 52 5 105 158 210 50 C 80 C 110 C 150 C 28 8 9 4 6 6 6 6 23 6 7 6 7 6 7 6 26 0 8 8 9 4 9 4 9 4 9 4 0 0 5 0 10 0 15 0 20 0 25 0 30 0 35 0 40 0 F202wearinmm3 MJ Lifetimecalculation壽命計(jì)算F202 36 52 5 105 158 210 50 C 80 C 110 C 150 C 0 75 0 55 0 29 0 15 0 55 0 3 0 2 0 1 0 52 0 2 0 13 0 06 0 08 0 045 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 F491wearinmmfor10000op rations 52 5 105 158 210 50 C 80 C 110 C 150 C 35 4 34 6 27 4 28 3 26 0 18 9 18 9 18 9 24 6 12 6 12 3 11 3 0 0 0 0 7 6 8 5 0 0 5 0 10 0 15 0 20 0 25 0 30 0 35 0 40 0 F491wearininmm3 MJ Lifetimecalculation壽命計(jì)算F491 37 Lifetimecalculation壽命計(jì)算F510 52 5 105 158 210 50 C 80 C 110 C 150 C 0 49 0 19 0 12 0 055 0 33 0 14 0 095 0 045 0 29 0 11 0 045 0 025 0 035 0 02 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 F510Wear inmmfor10000op rations 52 5 105 158 210 50 C 80 C 110 C 150 C 0 49 0 19 0 12 0 055 0 33 0 14 0 095 0 045 0 29 0 11 0 045 0 025 0 035 0 02 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 F510wearinmmforr10000op rations 52 5 105 158 210 50 C 80 C 110 C 150 C 23 1 12 0 11 3 10 4 15 6 8 8 9 0 8 5 13 7 6 9 4 3 4 7 3 3 3 8 0 0 5 0 10 0 15 0 20 0 25 0 30 0 35 0 40 0 F510wearinmm3 MJ 38 Lifetimecalculation壽命計(jì)算Basichypothesis最初假設(shè) Start upina6 slopeforlonghaulage 8 foroffroad GrossCombinationWeight10kJforeachgearchangingVariables ofstart ups usually15 start upgearaxleratioandtiresizepressureplatecoretemperature usually100 C 對(duì)長(zhǎng)拖掛起步在6 的坡度 8 在沒(méi)有路面上 車(chē)輛總重對(duì)每次換擋產(chǎn)生10kJ變量 起步坡度 通常為15 起步檔主傳動(dòng)比和輪胎尺寸壓盤(pán)中心的溫度 通常為100 C 39 Exampleoflifedurationcalculation壽命計(jì)算的例子 40 Exampleoflifedurationcalculation壽命計(jì)算例子 41 Lifecriteria壽命標(biāo)準(zhǔn)vs gearboxandenginepower針對(duì)變速箱和發(fā)動(dòng)機(jī)功率