Vibration Characterization and Fault Diagnosis of a Planetary Gearbox with a Wireless Embedded Sensor

A planetary gearbox is more complex in structure and motion than a gearbox with a fixed shaft, making it difficult to monitor and make a fault diagnosis in practice. Components must be frequently inspected to avoid excessive wear, but there is no simple way to directly measure wear. The most direct...

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Main Authors: Li-Te Huang, Jen-Yuan Chang
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/13/2/729
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author Li-Te Huang
Jen-Yuan Chang
author_facet Li-Te Huang
Jen-Yuan Chang
author_sort Li-Te Huang
collection DOAJ
description A planetary gearbox is more complex in structure and motion than a gearbox with a fixed shaft, making it difficult to monitor and make a fault diagnosis in practice. Components must be frequently inspected to avoid excessive wear, but there is no simple way to directly measure wear. The most direct method is to log vibration and temperature signals using external sensors. Wireless sensors offer more space advantages than a wired one, so this study developed a measurement system that features a three-axis MEMS accelerometer, temperature sensing and wireless modules that are integrated into a planetary gearbox. Along with the system, a virtual instrument (VI) utilizing graphics programming language LabVIEW was developed to acquire and display data time and frequency domains to detect the gear’s faults. To determine the root cause of vibrations in a planetary gearbox, determine the vibration signal model of amplitude modulation (AM) and frequency modulation (FM) due to gear damage and derive the characteristic frequencies of vibrations for a planetary gearbox, the characteristic frequencies and AMFM modulation were summarized in closed form. Different degrees of each gear damage were then detected in the planetary gearbox. The vibration signal model was validated by experiments to indicate the sideband around the gear meshing frequency and its feasibility for fault diagnosis of a planetary gearbox with the wireless embedded sensor.
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spelling doaj.art-b5bbd52fd17c47d2b35a86df353140722023-11-30T21:00:38ZengMDPI AGApplied Sciences2076-34172023-01-0113272910.3390/app13020729Vibration Characterization and Fault Diagnosis of a Planetary Gearbox with a Wireless Embedded SensorLi-Te Huang0Jen-Yuan Chang1Mechanical and Mechatronics Systems Research Labs, Industrial Technology Research Institute, Chutung, Hsinchu 31057, TaiwanDepartment of Power Mechanical Engineering, National Tsing Hua University, Hsinchu 30013, TaiwanA planetary gearbox is more complex in structure and motion than a gearbox with a fixed shaft, making it difficult to monitor and make a fault diagnosis in practice. Components must be frequently inspected to avoid excessive wear, but there is no simple way to directly measure wear. The most direct method is to log vibration and temperature signals using external sensors. Wireless sensors offer more space advantages than a wired one, so this study developed a measurement system that features a three-axis MEMS accelerometer, temperature sensing and wireless modules that are integrated into a planetary gearbox. Along with the system, a virtual instrument (VI) utilizing graphics programming language LabVIEW was developed to acquire and display data time and frequency domains to detect the gear’s faults. To determine the root cause of vibrations in a planetary gearbox, determine the vibration signal model of amplitude modulation (AM) and frequency modulation (FM) due to gear damage and derive the characteristic frequencies of vibrations for a planetary gearbox, the characteristic frequencies and AMFM modulation were summarized in closed form. Different degrees of each gear damage were then detected in the planetary gearbox. The vibration signal model was validated by experiments to indicate the sideband around the gear meshing frequency and its feasibility for fault diagnosis of a planetary gearbox with the wireless embedded sensor.https://www.mdpi.com/2076-3417/13/2/729planetary gearboxwireless sensorvirtual instrumentationmechanical wearvibration
spellingShingle Li-Te Huang
Jen-Yuan Chang
Vibration Characterization and Fault Diagnosis of a Planetary Gearbox with a Wireless Embedded Sensor
Applied Sciences
planetary gearbox
wireless sensor
virtual instrumentation
mechanical wear
vibration
title Vibration Characterization and Fault Diagnosis of a Planetary Gearbox with a Wireless Embedded Sensor
title_full Vibration Characterization and Fault Diagnosis of a Planetary Gearbox with a Wireless Embedded Sensor
title_fullStr Vibration Characterization and Fault Diagnosis of a Planetary Gearbox with a Wireless Embedded Sensor
title_full_unstemmed Vibration Characterization and Fault Diagnosis of a Planetary Gearbox with a Wireless Embedded Sensor
title_short Vibration Characterization and Fault Diagnosis of a Planetary Gearbox with a Wireless Embedded Sensor
title_sort vibration characterization and fault diagnosis of a planetary gearbox with a wireless embedded sensor
topic planetary gearbox
wireless sensor
virtual instrumentation
mechanical wear
vibration
url https://www.mdpi.com/2076-3417/13/2/729
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