干式离合器钢片摩擦传热的有限元分析
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摘要
离合器在运行时产生的摩擦闪温是研究离合器热失效的重要参数。工程上通常采用热电偶埋入法测量离合器摩擦表面的温度。为了探究实际工况下离合器中温度场的分布,在真实测量时为传感器的选择和测点的布置提供有效依据。通过理论和有限元方法对干式离合器在某些工况下进行热分析,得到了该工况下钢片内距摩擦表面不同深度处的温度-时间曲线和钢片内部某深度处在不同压力、转速下的温度时间-曲线,并对各因素对温度的影响进行了分析。
The friction flash temperature is an important parameter to study the thermal failure of the clutch.The temperature of clutch friction surface is usually measured by thermocouple embedding method in engineering.In order to explore the distribution of the temperature field in the clutch under the actual conditions,to provide effective basis for the choice of sensors and the arrangement of measuring points in real measurement.Thermal analysis on the dry clutch under certain conditions by means of theory and finite element method is performed to obtain the temperature-time curves of the inner part of the sheet steel under different depths and the temperature-time curves under different pressures and rotational speeds at certain depth.The effects of various factors on the temperature were also analyzed.
The friction flash temperature is an important parameter to study the thermal failure of the clutch.The temperature of clutch friction surface is usually measured by thermocouple embedding method in engineering.In order to explore the distribution of the temperature field in the clutch under the actual conditions,to provide effective basis for the choice of sensors and the arrangement of measuring points in real measurement.Thermal analysis on the dry clutch under certain conditions by means of theory and finite element method is performed to obtain the temperature-time curves of the inner part of the sheet steel under different depths and the temperature-time curves under different pressures and rotational speeds at certain depth.The effects of various factors on the temperature were also analyzed.
引文
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[2]宋涛.盘式制动器应力场与温度场多场耦合的数值模拟[D].南昌:南昌大学,2014:1.
[3]熊玉杰,席军强,翟涌,等.干式离合器摩擦片表面温度测量与分析[J].广西大学学报:自然科学版,2016,41(2):451-459.
[4]阚哲,孟国营,王晓蕾,等.基于遗传算法的炉膛温度场重建算法研究[J].电子测量与仪器学报,2014(10):1149-1154.
[5]ABDULLAH O I,SCHLATTMANN J.An investigation into the thermal behavior of the grooved dry friction clutch[J].Journal of Tribology,2014,136(3):034504-3.
[6]杨世铭,陶文铨.传热学[M].第4版.北京:高等教育出版社,2006:124.
[7]倪陆,张清鹏.防爆电梯轿厢安全钳制动摩擦温升的仿真分析[J].国外电子测量技术,2010,29(11):21-23.
[8]李艳,李英浩,高峰,等.基于互信息法和改进模糊聚类的温度测点优化[J].仪器仪表学报,2015,36(11):2466-2472.
[9]孙怀远,宋来全,杨丽英,等.热电偶温度检测系统设计与应用[J].电子测量技术,2014,37(12):86-89.
[10]孔令荣,王昊,庄涛.多点无线温度监测系统研究与实现[J].电子测量技术,2014,37(8):97-103.