Gear Meshing Impact Characteristics Extraction based on In-Situ Signal Perception
编号:26 访问权限:仅限参会人 更新:2024-10-23 10:47:11 浏览:30次 口头报告

报告开始:2024年11月02日 08:50(Asia/Shanghai)

报告时间:20min

所在会场:[P2] Parallel Session 2 [P2-2] Parallel Session 2(November 2 AM)

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摘要
The early fault signal of mechanical equipment is often weak, and substantial energy loss occurs when this signal propagates through multiple interfaces to traditional external sensors. This transmission loss complicates the extraction of early fault characteristics using conventional external vibration signal analysis methods. To address this issue, this study proposes an in-situ measurement method for extracting gear meshing impact with torsional vibration compensation. Initially, four acceleration sensors are evenly distributed on the gear shaft near the gear for in-situ measurements. Subsequently, torsional vibration signals are extracted to compensate for each sensor's signals. The gear's low-frequency rotational speed signal is obtained through filtering using a filter bank, and the gear's instantaneous phase is extracted through the Hilbert transform. Finally, the instantaneous gear meshing impact signal is obtained by performing a projection transformation and phase alignment based on the instantaneous phase of each sensor.  The effectiveness of this method is validated through an early crack failure experiment on a gearbox. The results demonstrate that the meshing impact extraction method is more sensitive to fault signals and possesses higher practical value for the early fault diagnosis of gearboxes.
 
关键词
Multi-interface transmission losses,In-situ measurement,Meshing impact extraction,Fault diagnosis
报告人
YangJiang
student Chongqing University

稿件作者
YangJiang Chongqing University
SunChen Chongqing University;Hangzhou Zhonggang Metro Equipment Maintenance Co., Ltd.
HeJiafu Chongqing University
WangLiming Chongqing University
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重要日期
  • 会议日期

    10月31日

    2024

    11月03日

    2024

  • 09月30日 2024

    初稿截稿日期

  • 11月12日 2024

    注册截止日期

主办单位
Anhui University
Xi’an Jiaotong University
Harbin Institute of Technology
IEEE Instrumentation & Measurement Society
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