Low-Cost, High-Frequency, Data Acquisition System for Condition Monitoring of Rotating Machinery through Vibration Analysis-Case Study

Soto-Ocampo, César Ricardo; Mera, J. M.; Cano-Moreno, Juan David; Garcia-Bernardo, José Luis

doi:10.3390/s20123493

Cited by 26 publications

(36 citation statements)

References 23 publications

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“…, R Fn (t). This study presents the creation of the life history of a bearing located on a test bench [16], considering four failure levels (n = 4) and the normal state, as described in Section 2.2.…”

Section: Methodsmentioning

confidence: 99%

“…The study [16] on which this work is based addressed the development of low-cost recording equipment with a sampling frequency of up to 45 kHz in three of its channels, applicable to bearing condition monitoring. In this previous investigation, its characteristics were validated by capturing records of simulated failures in the test bench bearing.…”

Section: Experiments Detailsmentioning

confidence: 99%

“…The ISO 13373-1 [14] standard indicates that the load is one of the most influential factors in vibration; therefore, the fault generated in OR must be positioned in the load zone of its support. As indicated by Soto-Ocampo et al [16], a threaded tightening tower was used in this experiment, which allows for a vertical load of 1.4 kN to be applied.…”

Section: Experiments Detailsmentioning

confidence: 99%

“…It should be noted that this first stage has been treated in a previous study [16], where the authors presented a low-cost, high-frequency data acquisition system based on a Raspberry Pi, which allows for the application of CM to bearings in rotating machinery. Continuing this research, this work focuses on the second stage, in which data processing methods are studied.…”

Section: Introductionmentioning

confidence: 99%

“…The literature has emphasised the importance of identifying frequency bands of a signal, with the presence of transient events associated with the bearing condition. However, in this study, we intended to analyse the behaviour of the footprint of the evolution of a fault, according to the frequency bands proposed in [16]. Therefore, various contour maps are made for the selected frequency bands.…”

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confidence: 99%

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Bearing Severity Fault Evaluation Using Contour Maps—Case Study

et al. 2021

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Increasing industrial competitiveness has led to an increased global interest in condition monitoring. In this sector, rotating machinery plays an important role, where the bearing is one of the most critical components. Many vibration-based signal treatments are already being used to identify features associated with bearing faults. The information embedded in such features are employed in the construction of health indicators, which allow for evaluation of the current operating status of the machine. In this work, the use of contour maps to represent the diagnosis map of a bearing, used as a health map, is presented for the first time. The results show that the proposed method is promising, allowing for the satisfactory detection and evaluation of the severity of bearing damage. In this initial stage of the research, our results suggest that this method can improve the classification of bearing faults and, therefore, optimise maintenance processes.

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Section: Methodsmentioning

confidence: 99%

Section: Experiments Detailsmentioning

confidence: 99%

Section: Experiments Detailsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Bearing Severity Fault Evaluation Using Contour Maps—Case Study

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Design and implementation of high precision servo channel loading card for fatigue testing of aircraft wings

Zhao

Xiao

Shen

2023

Circuit Theory & Apps

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SummaryA servo channel loading card (SCLC) with high precision data acquisition and output is developed for static and fatigue testing of aircraft wings. A high‐performance processor field programmable gate array (FPGA) is at the core to control the excitation source (ES) output circuit to provide excitation for the force and displacement sensor. To improve the precision of the ES output circuit, a 3DA‐based ES auto‐calibration circuit is designed. Simulation results show that the 3DA improves the precision of the automatic calibration of the ES circuit. The sensor signals are collected through high precision analog channels, and the signals are automatically zero calibrated and numerical control gain processed. Ultimately, a voltage or current signal is generated through the drive circuit to control the electro‐hydraulic servo loading system to complete a high precision force loading test on the aircraft wings. The experimental results show that the board designed has high reliability in both acquisition and output. The ES output achieved a precision of 0.1375 mV/V, the precision of signal acquisition achieves a precision of −0.175 mV/V, and the servo drive output achieves a precision of −0.06 mV/V, meeting the expected design precision of 1 mV/V.

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