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<p>This study employs a temperature field inversion method to obtain the oil film temperature distribution. A test rig integrating real-time bearing temperature measurement capabilities was first established. Subsequently, thermal images of the bearing outer wall were captured using an infrared thermal imager. Finally, an iterative coupled solving algorithm was applied to inversely compute the temperature fields of both inner and outer bearing walls under varying rotational speeds (r/min) and applied loads (N), revealing the temperature distribution patterns and evolution trends under different operating conditions. Experimental results demonstrate that the inversion-based computational method represents a novel approach for acquiring oil film temperatures during sliding bearing operation.</p>

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Experimental study on oil film temperature measurement of journal bearing under different rotating speeds and loads by inverse calculation method

  • 期刊论文

  • 发表日期：

    2025年6月28日

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  • Xuesen Chang,
  • Rui Guo,
  • Xingjun Fu

摘要

This study employs a temperature field inversion method to obtain the oil film temperature distribution. A test rig integrating real-time bearing temperature measurement capabilities was first established. Subsequently, thermal images of the bearing outer wall were captured using an infrared thermal imager. Finally, an iterative coupled solving algorithm was applied to inversely compute the temperature fields of both inner and outer bearing walls under varying rotational speeds (r/min) and applied loads (N), revealing the temperature distribution patterns and evolution trends under different operating conditions. Experimental results demonstrate that the inversion-based computational method represents a novel approach for acquiring oil film temperatures during sliding bearing operation.