| 陈 磊,王少红,周福强,徐小力.超声波测量离合器包箱温度研究[J].电子测量与仪器学报,2021,35(5):76-82 |
| 超声波测量离合器包箱温度研究 |
| Research on ultrasonic measurement of temperature in clutch case |
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| DOI： |
| 中文关键词: 超声波测温 飞行时间 最小二乘法 温度场 |
| 英文关键词:ultrasonic temperature measurement flight time least square method temperature field |
| 基金项目:国家重点研发计划(2020YFB1713203)、国家自然科学基金(51975058)、北京学者(2015 025）项目资助 |
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| 中文摘要: |
| 传统的离合器包箱测温技术存在响应速度慢、安装不便和测量误差较大等问题,提出一种采用超声波技术对离合器包
箱内部温度进行测量的方法,这种方法能够很好地解决传统测温技术存在的问题,在工程应用中具有巨大的应用潜力。 基于有
限元分析软件 COMSOL 建立超声波在离合器包箱中传播的物理模型,并使用最小二乘法对离合器包箱的温度场进行还原,能
够很好地解决离合器包箱内部物理场耦合复杂的问题。 结果表明,使用超声波测量方法可以获得离合器包箱内部温度,超声波
飞行时间的计算结果与理论结果的最大相对误差仅为 0. 26%;并且使用最小二乘法还原温度场的结果与理论结果一致。 |
| 英文摘要: |
| In this paper, ultrasonic technology is proposed for the inner temperature of clutch case measurement of the slow response,
inconvenient installation and large measurement error traditional temperature measurement. The in-depth study of the application of
ultrasonic temperature measurement technology in clutch case has significant meanings to solve the problems in traditional temperature
methods. Based on the finite element analysis software COMSOL, the physical model of ultrasonic wave propagation is established in the
clutch case, and the temperature field of the clutch case is restored by the least square method, which can well solve the problem of
complex coupling of physical field inside the clutch case. The results show that the internal temperature of clutch case can be obtained by
ultrasonic measurement, and the maximum relative error between the calculation results of flight time and the theoretical results is
0. 26%; The results of temperature field reduction by least square method are consistent with the theoretical results. |
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