离合器温度场计算中摩擦热流密度模型的比较研究
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摘要
温度场计算是离合器设计与控制的重要依据,摩擦热模型是温度场计算准确性的关键。针对热流均布和压力均布两种主流的摩擦热流密度模型,将其分别引入离合器热分析的有限元模型,计算在持续滑摩的极端工况下温度场随时间和空间的变化过程,从温度分布云图、温度沿半径方向的变化、最高温度以及温度梯度等方面对两种模型的计算结果进行比较,给出了两种模型的适用范围。
Temperature field analysis through finite element model is important in the study of clutch design and control. The frictional heat model is the key to the calculation accuracy of temperature field. Aiming atthe two main frictional heat flux models of heat flux uniform distribution and pressure uniform distribution,theyare applied to FEM thermal analysis model of clutch respectively to calculate the temperature field varying process with time and space under the extreme condition of continuous sliding. Their results are compared in termsof the maximum temperature, temperature distribution and temperature gradient along the radial direction. In addition, the scope of application of the two models is given.
Temperature field analysis through finite element model is important in the study of clutch design and control. The frictional heat model is the key to the calculation accuracy of temperature field. Aiming atthe two main frictional heat flux models of heat flux uniform distribution and pressure uniform distribution,theyare applied to FEM thermal analysis model of clutch respectively to calculate the temperature field varying process with time and space under the extreme condition of continuous sliding. Their results are compared in termsof the maximum temperature, temperature distribution and temperature gradient along the radial direction. In addition, the scope of application of the two models is given.
引文
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[22]VELARDOCCHIA M,AMISANO F,FLORA R.A linear thermal model for an automotive clutch[J].SAE Technical Papers,2000:2000-01-0834:3.
[2]吴光强,孙贤安.汽车自动变速器发展综述[J].同济大学学报(自然科学版),2010,38(10):1478-1483.
[3]WANG Y,GAO B,CHEN H.Data-driven design of parity spacebased FDI system for AMT vehicles[J].IEEE/ASME Transactions on Mechatronics,2014,20(1):405-415.
[4]向永乐.干式双离合自动变速器频繁动作(起步和换档)温升研究[D].重庆:重庆理工大学,2014:67-71.
[5]刘雪莱,朱茂桃.离合器压盘热负荷特性分析及改进研究[J].机械传动,2014,38(5):128-131.
[6]朱茂桃,浦宇斌,刘涛.车用干式双离合器温升对比研究[J].机械传动,2017,41(12):77-82.
[7]PICA G,CERVONE C,SENATORE A,et al.Dry dual clutch torque model with temperature and slip speed effects[J].Intelligent Industrial Systems,2016,2(2):133-147.
[8]MYKLEBUST A,ERIKSSON L.Modeling,observability,and estimation of thermal effects and aging on transmitted torque in a heavy duty truck with a dry clutch[J].IEEE/ASME Transactions on Mechatronics,2015,20(1):62.
[9]冯益坤.某轿车干式双离合器设计及分析[D].秦皇岛:燕山大学,2013:5
[10]魏丕勇,李长有,陆子平,等.摩擦片瞬态温度场与应力场有限元分析[J].拖拉机与农用运输车,2008,35(4):90-92.
[11]AKHTAR M M J,ABDULLAH O I,SCHLATTMANN J S.Transient thermoelastic analysis of dry clutch system[J].Machine Design,2013,5(4):141-150.
[12]PISATURO M,SENATORE A,AGOSTINO V D.Simulation of engagement control in automotive dry-clutch and temperature field analysis through finite element model[J].Applied Thermal Engineering,2016,93:958-966.
[13]SUN S,LEI Y,FU Y,et al.Analysis of thermal load for dry clutch under the frequent launching condition[J].SAE Technical Papers,2013:2013-01-0814:8.
[14]BELHOCINE A,BOUCHETARA M.Thermal analysis of a solid brake disc[J].Applied Thermal Engineering,2012,32(1):67.
[15]周云山,黎承霖.基于集总参数法的干式双离合器温度模型研究[J].机械传动,2016,40(8):1-5.
[16]HEBBALE K,SAMIE F,KISH J.Dry dual clutch transmission(DCT)thermal model[J].SAE Technical Papers,2015:2015-01-1144:3.
[17]ABDULLAH O I,SCHLATTMANN J.Finite element analysis of temperature field in automotive dry friction clutch[J].Tribology in Industry,2012,34(4):206-216.
[18]ABDULLAH O I,SCHLATTMANN J.Thermal behavior of friction clutch disc based on uniform pressure and uniform wear assumptions[J].Friction,2016,4(3):228-237.
[19]房成亮陈俐,刘峰宇.干式DCT主离合器的有限元传热模型与实验验证[J].传动技术,2016,30(4):3-8.
[20]熊涔博,马彪,李和言,等.多片离合器定速滑摩过程摩擦元件间的热量分配系数研究[J].科学技术与工程,2016,16(21):92-98.
[21]杨世铭,陶文栓.传热学[M].4版.北京:高等教育出版社,2006:41-45.
[22]VELARDOCCHIA M,AMISANO F,FLORA R.A linear thermal model for an automotive clutch[J].SAE Technical Papers,2000:2000-01-0834:3.