期刊
IEEE-ASME TRANSACTIONS ON MECHATRONICS
卷 27, 期 6, 页码 5857-5868出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMECH.2022.3189954
关键词
Accelerometer; condition monitoring; lateral vibration; microelectromechanical systems (MEMS); torsional vibration
类别
资金
- Business Finland Reboot IoT Factory [4356/31/2019]
- Academy of Finland under Grant AI-ROT [335717]
- Academy of Finland (AKA) [335717] Funding Source: Academy of Finland (AKA)
Microelectromechanical systems accelerometers have opened new possibilities for vibration monitoring of rotating machinery, enabling measurement of lateral and torsional vibration. This article presents an on-shaft wireless universal measurement unit with a two-sensor configuration to accurately measure the frequencies of torsional and lateral vibration.
Microelectromechanical systems accelerometers have opened new possibilities for vibration monitoring of a rotating machinery. They enable mounting accelerometers directly to the rotating component of the machine, e.g., shaft. This enables not only the measurement of a lateral vibration but also a torsional vibration of the machine. This increases the vibration data gathered from the machine by one measurement instrument. This article presents an on-shaft wireless universal measurement unit (UMU) with innovative combination of features, such as a high measurement range and easy mounting. The UMU has a two-sensor configuration where two accelerometers are mounted to the opposite sides of a shaft. This enables to utilize a novel signal processing method to separate torsional and lateral vibration from the data. The signal processing method combines and modifies methods presented in the published literature. The results presented in this article demonstrate that the UMU together with the presented signal processing method can measure frequencies of torsional and lateral vibration accurately. However, the amplitude comparison between the UMU and reference sensors cannot be done adequately because they are measuring either different components of the machine or different physical properties.
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