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首页> 外文会议>Conference of the European Scientific Association on material forming;ESAFORM 2012 >Determination of heat repartition parameters on high speed pin-on-disc tribometer by inverse heat conduction method
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Determination of heat repartition parameters on high speed pin-on-disc tribometer by inverse heat conduction method

机译：反向热传导法测定高速针盘摩擦计上的热分配参数

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摘要

The heat transfers are investigated between a phenolic pin sliding against a steel disc. Inverse heat conduction methods are used to identify temperature fields and heat fluxes at the contact surface for each part. Experimentals tests are performed on the High Speed Tribometer designed to reproduce mechanical and thermal conditions met in forming and braking applications at reduced scale. It allows to measure temperatures inside the rotating part in seven locations with K-type thermocouples sensors connected to a telemetry system. Their positions have been chosen regarding a sensitivity analysis performed in expected thermal conditions. The heat distribution on the disc surface, the heat repartition parameter α between the pin and the disc and the sliding thermal conductance h_c are discussed regarding the friction conditions during the tribological tests performed. In this tribological system, the temperature and the pressure influences on h_c are highlighted. The originality of this work is the possibility to calculate two dimensional transient heat fluxes for sliding speed until 15m.s ' thanks to several thermocouple measurements.
机译：研究了酚醛销钉在钢盘上滑动之间的传热情况。逆导热方法用于识别每个零件接触表面的温度场和热通量。在高速摩擦计上进行了实验测试，该高速摩擦计旨在以较小的比例复制成型和制动应用中满足的机械和热条件。通过连接到遥测系统的K型热电偶传感器，它可以在七个位置测量旋转部件内部的温度。已根据在预期的热条件下进行的灵敏度分析选择了它们的位置。讨论了在进行的摩擦学测试期间的摩擦条件，讨论了圆盘表面的热分布，销与圆盘之间的热重新分配参数α和滑动热导率h_c。在这个摩擦学系统中，温度和压力对h_c的影响被突出显示。由于多次热电偶测量，这项工作的独创性是可以计算直到15m.s'的二维滑动速度瞬态热通量。

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