Brush wear detection by continuous wavelet

  • Maarten Jansen's Publications

    Brush wear detection by continuous wavelet transform. Mechanical Systems and Signal Processing, 21(3), pages 1222, April 2007. M. Jansen. Minimum risk thresholds for data with heavy noise. IEEE Signal Processing Letters, 13(5), pages 299, May 2006. PDF …

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  • Tool wear condition monitoring based on continuous wavelet ...

    In fact, in order to produce quickly, economically, with high quality and reduce machine tool downtime, a new intelligent method for tool wear condition monitoring is based on continuous wavelet transform (CWT) and blind source separation (BSS) techniques.

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  • Two Stage Helical Gearbox Fault Detection and Diagnosis ...

    Two Stage Helical Gearbox Fault Detection and Diagnosis based on Continuous Wavelet Transformation of Time Synchronous Averaged Vibration Signals F Elbarghathi1, T 1Wang2, D Zhen , F Gu1 and A Ball1 1Centre for Diagnostic Engineering, University of …

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  • Wear detection by means of wavelet ... - Harvard University

    Abstract Wear detection and monitoring during operation are complex and difficult tasks especially for materials under sliding conditions. Due to the permanent contact and repetitive motion, the material surface remains during tests non-accessible for optical inspection so that attrition of the contact partners cannot be easily detected.

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  • Detailed Vibration Analysis of Pinion Gear with Time ...

    Detailed Vibration Analysis of Pinion Gear with Time-Frequency Methods Marianne Mosher, Anna H. Pryor, and David G. Lewicki ... Continuous Wavelet Transform (CWT) and the Discrete Wavelet Transform (DWT). Vibration data ... study the detection of gear tooth fatigue cracks and their propagation rates under a variety of

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  • Maarten Jansen's Publications

    Brush wear detection by continuous wavelet transform. Mechanical Systems and Signal Processing, 21(3), pages 1222, April 2007. M. Jansen. Minimum risk thresholds for data with heavy noise. IEEE Signal Processing Letters, 13(5), pages 299, May 2006. PDF …

    [24/7 online ]
  • Fault Detection of Face Milling Cutter through Spectrum ...

    paper presents the fault detection of face milling tool using signal processing techniques. The vibration signals of milling tool under healthy and different faulty conditions are acquired. These vibration signals are analyzed by using time-domain plots, spectrum plots, cepstrum plots and continuous wavelet …

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  • Gear fault diagnosis based on continuous Morlet wavelet ...

    Abstract: A novel method for detection and diagnosis of the gear wear fault according to complex Morlet wavelet amplitude and phase map is presented. The continuous wavelet transform is widely recognized as an effective technique for machinery fault diagnosis using vibration signals since it can be used to detect both stationary and transitory signals.

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  • A wavelet-analysis-based differential method for engine ...

    On-line wear monitoring could provide timely information about engine health condition. In the current study, on-line monitoring of engine wear via an on-line visual ferrograph was performed in reliability tests of gasoline engines, and a wavelet-analysis-based differential method of data analysis for wear condition estimation was proposed.

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  • NEURO-WAVELET DAMAGE DETECTION TECHNIQUE IN …

    Neuro-wavelet damage detection technique in beam... 583 Fig. 2. Outline of the neuro-wavelet damage detection system 3. Continuous wavelet transform in damage detection For a given one-dimensional signal f(x), the continuous wavelet transform (CWT) can be obtained by integration of the product of the signal function

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  • Brushed Motor Aging | All About Circuits

     · Brushed Motor Aging Reply to Thread. Discussion in 'General ... but I can not find any data or specs that confirm this. Looking at a paper called, "Brush wear detection by continuous wavelet transform," I found some graphs that seem to indicate the ripple increases, but local minima/maxima were not the central point of the paper so I can't draw ...

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  • Wavelet Transform Based on Inner Product for Fault ...

     · Baccar D., Söffker D., “Wear detection by means of wavelet-based acoustic emission analysis,” Mechanical Systems Signal Processing, 2015, 60–61:198–207. ... “Early fault detection in gearboxes based on support vector machines and multilayer perceptron with a continuous wavelet transform,” Applied Soft Computing, 2015, 30: 636–641.

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  • Vibration analysis of rotating machinery using ... - DeepDyve

     · Read "Vibration analysis of rotating machinery using time–frequency analysis and wavelet techniques, Mechanical Systems and Signal Processing" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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  • Fault Detection In Induction Machine By Analysis Of Stator ...

    dimension time scale. In this paper, the detection of hanging load fault in a stator current signal is presented using the Morse wavelet in the structure of the continuous wavelet transform. In the proposed algorithm, firstly, the stator current signal is measured by the …

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  • Towards Real-Time Detection of Freezing of Gait Using ...

    Towards Real-Time Detection of Freezing of Gait Using Wavelet Transform on Wireless Accelerometer Data Saba Rezvanian and Thurmon E. Lockhart * School of Biological and Health Systems Engineering, Ira A. Fulton Schools of Engineering, Arizona State University, Tempe AZ 85287, USA; [email protected]

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  • Utilising the Wavelet Transform in Condition-Based ...

    Utilising the Wavelet Transform in Condition-Based Maintenance: A Review with Applications Theodoros Loutas and Vassilis Kostopoulos Applied Mechanics Lab, Department of Mechanical Engineering and Ae ronautics, ... The continuous wavelet transform breaks up a continuous

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  • Ripple Current in Aged Brushed DC Motors | Physics Forums

     · It would be intuitive for these ripples to decrease in magnitude over the lifetime of a motor but this doesn't seem to be the case based on data from a motor manufacturer and ripple images found in "Brush wear detection by continuous wavelet transform."

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  • NEURO-WAVELET DAMAGE DETECTION TECHNIQUE IN …

    Neuro-wavelet damage detection technique in beam... 583 Fig. 2. Outline of the neuro-wavelet damage detection system 3. Continuous wavelet transform in damage detection For a given one-dimensional signal f(x), the continuous wavelet transform (CWT) can be obtained by integration of the product of the signal function

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  • Talía Figarella Gómez - Amsterdam en omgeving, Nederland ...

    Brush Wear Detection by Continuous Wavelet Transform Mechanical Systems and Signal Processing, Volume 21, Issue 3, pp 1222 1 april 2007. This paper is concerned with the singularity detection of a motor current signal. These singularities are related to the brushes condition, which are one of the sensible parts of the motor to wear out.

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  • Brush wear detection by continuous wavelet transform - CORE

    Brush wear detection by continuous wavelet transform . By TR Figarella Gomez and MH Maarten Jansen. Abstract. This paper is concerned with the singularity detection of a motor current signal. These singularities are related to the brushes condition, which are one of the sensible parts of the motor to wear …

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  • Brush wear detection by continuous wavelet transform - CORE

    Brush wear detection by continuous wavelet transform . By TR Figarella Gomez and MH Maarten Jansen. Abstract. This paper is concerned with the singularity detection of a motor current signal. These singularities are related to the brushes condition, which are one of the sensible parts of the motor to wear …

    [24/7 online ]
  • Fault Detection in DC Electro Motors Using the Continuous ...

    The parameters of both transforms were selected in order to make both methods comparable. Because of the poor frequency variance, the windowed Fourier transform was, in this case, proven to be inferior to the continuous wavelet transform. Therefore, the continuous wavelet transform was chosen as the primary tool for fault detection.

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  • Fault diagnosis of pump valve spring based on improved ...

    The fault diagnosis on pump valve springs of emulsion pump was analyzed based on the singularity analysis of continuous wavelet transform. The improved method for Lipschitz index was presented with better robustness and efficiency based on the Least Square Method. ... Figarella T., Jansen M. H. Brush wear detection by continuous wavelet ...

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  • DI-fusion Brush wear detection by continuous wavelet transform

    DI-fusion, le Dépôt institutionnel numérique de l'ULB, est l'outil de référencementde la production scientifique de l'ULB.L'interface de recherche DI-fusion permet de consulter les publications des chercheurs de l'ULB et les thèses qui y ont été défendues.

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  • Vibration analysis of rotating machinery using ... - DeepDyve

     · Read "Vibration analysis of rotating machinery using time–frequency analysis and wavelet techniques, Mechanical Systems and Signal Processing" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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  • Faults detection of gearbox of MF285 tractor based on ...

    this work, three kind of conditions fault included health gear; gear with tooth breakage and gear with face wear for studding fault detection have been consider. Figure 1 shows the experimental set up for this study. The model of gear No1 mounted on this set up. ... Continuous wavelet transform is defined by following the relationship (Wu & Hsu ...

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  • Support Vector Machine based Gear Fault Defect ...

    advanced studies are continuous wavelet transform and discrete wavelet transform (DWT) can effectively detect ... a gear system to reduce friction and wear by creating a film of material between the gear teeth. If the lubricant film at ... Support Vector Machine based Gear Fault Defect Classification using Wavelet De Noised Vibration Signal

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  • Discrete Wavelet Transform Based Rotor Faults Detection ...

    The proposed wavelet based detection method ... from winding contamination from carbon or graphite dust from the brushes. The fine ... continuous wavelet transform is computed for all the imposed values of s. For the discrete wavelet transform (DWT) the main idea is the same as it is in the case ...

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  • A Simple Continuous Wavelet Transform Method for …

    A Simple Continuous Wavelet Transform Method ... faults, such as wear, pitting, or spall may occur after a long period of running ... A Simple Continuous Wavelet Transform Method for Detection of Rolling Element Bearing Faults and its Comparison with Envelope Detection ...

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  • Discrete Wavelet Transform Based Rotor Faults Detection ...

    The proposed wavelet based detection method ... from winding contamination from carbon or graphite dust from the brushes. The fine ... continuous wavelet transform is computed for all the imposed values of s. For the discrete wavelet transform (DWT) the main idea is the same as it is in the case ...

    [24/7 online ]
  • Towards Real-Time Detection of Freezing of Gait Using ...

    Towards Real-Time Detection of Freezing of Gait Using Wavelet Transform on Wireless Accelerometer Data. Saba Rezvanian and Thurmon E. Lockhart * Gary R. Pickrell, ... Here, the continuous wavelet transform (CWT) is employed to define an index for correctly identifying FOG. Since the CWT method uses both time and frequency components of a ...

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  • Tool wear detection with fuzzy classification and wavelet ...

    Tool wear detection with fuzzy classification and wavelet fuzzy neural network_。In the paper, a new method of tool wear detection with cutting conditions and detected signals is presented, which includes the model of wavelet fuzzy neural network with acoustic emission (AE) and the model of fuzzy classification with motor current. The

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