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Статті в журналах з теми "Instantaneous Angular Speed"
Li, Yuhua, Fengshou Gu, Georgina Harris, Andrew Ball, Nick Bennett, and Ken Travis. "The measurement of instantaneous angular speed." Mechanical Systems and Signal Processing 19, no. 4 (July 2005): 786–805. http://dx.doi.org/10.1016/j.ymssp.2004.04.003.
Повний текст джерелаRémond, D., J. Antoni, and R. B. Randall. "Instantaneous Angular Speed (IAS) processing and related angular applications." Mechanical Systems and Signal Processing 45, no. 1 (March 2014): 24–27. http://dx.doi.org/10.1016/j.ymssp.2013.10.015.
Повний текст джерелаKhadraoui, Souha, Fabrice Bolaers, Olivier Cousinard, and Jean Paul Dron. "Low speed lifting cable diagnosis using instantaneous angular speed." Journal of Mechanical Science and Technology 35, no. 5 (April 20, 2021): 1821–28. http://dx.doi.org/10.1007/s12206-021-0402-x.
Повний текст джерелаYousef Ben Sasi, Ahmed, Fengshou Gu, Bradley Payne, and Andrew Ball. "Instantaneous angular speed monitoring of electric motors." Journal of Quality in Maintenance Engineering 10, no. 2 (June 2004): 123–35. http://dx.doi.org/10.1108/13552510410539196.
Повний текст джерелаXie, Jingsong, Jinglong Chen, Yizhen Peng, and Yanyang Zi. "A New Concept of Instantaneous Whirling Speed for Cracked Rotor’s Axis Orbit." Applied Sciences 9, no. 19 (October 2, 2019): 4120. http://dx.doi.org/10.3390/app9194120.
Повний текст джерелаPopovic, Slobodan, and Miroljub Tomic. "Possibilities to identify engine combustion model parameters by analysis of the instantaneous crankshaft angular speed." Thermal Science 18, no. 1 (2014): 97–112. http://dx.doi.org/10.2298/tsci120907006p.
Повний текст джерелаBonnardot, Frédéric, Khalid Lizoul, Saad Errafik, Hugo André, and François Guillet. "High frequency demodulation technique for instantaneous angular speed estimation." Mechanical Systems and Signal Processing 159 (October 2021): 107745. http://dx.doi.org/10.1016/j.ymssp.2021.107745.
Повний текст джерелаMoustafa, W., O. Cousinard, F. Bolaers, K. Sghir, and JP Dron. "Low speed bearings fault detection and size estimation using instantaneous angular speed." Journal of Vibration and Control 22, no. 15 (November 27, 2014): 3413–25. http://dx.doi.org/10.1177/1077546314560600.
Повний текст джерелаRenaudin, L., F. Bonnardot, O. Musy, J. B. Doray, and D. Rémond. "Natural roller bearing fault detection by angular measurement of true instantaneous angular speed." Mechanical Systems and Signal Processing 24, no. 7 (October 2010): 1998–2011. http://dx.doi.org/10.1016/j.ymssp.2010.05.005.
Повний текст джерелаDereszewski, Mirosław, and Adam Charchalis. "MODEL BASED PREDICTION OF THE CRANKSHAFT INSTANTANEOUS ANGULAR SPEED FLUCTUATIONS." Journal of KONES. Powertrain and Transport 20, no. 1 (January 25, 2013): 55–61. http://dx.doi.org/10.5604/12314005.1135314.
Повний текст джерелаДисертації з теми "Instantaneous Angular Speed"
Spagnol, Marco. "Maintenance of electrical machines: Instantaneous Angular Speed analysis." Doctoral thesis, Università degli studi di Trieste, 2015. http://hdl.handle.net/10077/11102.
Повний текст джерелаThis research is focused on the condition monitoring of electrical machines and its long term purpose is to monitor electrical and mechanical faults at the same time, in non-stationary conditions (variable load and speed), with a single piece of hardware. The Instantaneous Angular Speed (IAS) measurement of an electrical machine is proposed and analysed in order to detect the fault development inside it. Chapter 1 introduces some basic principles about the maintenance of an electrical machine. Machine unscheduled downtimes are frequently caused by bearing faults, and rotor/stator faults. Monitoring systems are needed when the machine is very important for the plant (cost, safety). In this chapter, the electrical machine’s behaviour is also examined. Induction electrical machines have been chosen for this research. A review of the excitation frequencies is reported in the chapter. In the last section, characteristic fault frequencies (from mechanical and electrical sources) are collected. Chapter 2 presents the IAS measurement and its signal processing. The IAS is the measurement of the shaft rotating speed in order to visualize what’s happening during a single or in multiple turns. There are many measurement methods which are based either analogical to digital conversion or which use counters. Analogical to digital methods use a standard data acquisition board. Counter methods have to use specific hardware that is more expensive, but with less data to store. In this research, the counter method is used, combined with the Elapsed Time (ET) counting technique. Chapter 3 describes the encoder system. Its output signal is acquired with an oscilloscope and with the counter board. The signal’s differences are highlighted. In this chapter, the measurement’s source of errors are listed: the encoder’s geometrical error, the counter’s quantization error, the clock stability and the general electrical noise. Chapter 4 collects all the experimental tests done during the PhD research. Three experimental test rigs are shown and two measurements at Nidec ASI S.p.A. are reported. Note that the experimental test rigs were designed and built at the Università degli Studi di Trieste during the three years of the PhD. Experimental Test Rig 1 (ETR1) is used to understand the electrical motor’s behaviour with varying speed, the difference between the IAS and the speed acquired with the Torsional Laser Vibrometer, the difference between the IAS and the acceleration signal measured with an accelerometer located on the motor’s stator, the effect of the unbalance in the IAS measurement. Experimental Test Rig 2 (ETR2) allows to examine the load effect on the IAS measurement, the magneto-motive force harmonics, the slip and the rotor effects. Experimental Test Rig 3 (ETR3) is designed in order to detect the Inner Race Bearing Fault (Ball Pass Frequency Inner - BPFI) with varying load. The acceleration, the voltage and the current are compared with the Instantaneous Angular Speed. The motor is also tested with an unbalanced power supply. The two measurements at Nidec ASI S.p.A show how the IAS measurement could be implemented in an industrial machine larger than the one tested in the laboratory. This research presents the pros and cons of the IAS measurement, highlighting the capability of detecting BPFI bearing fault, feeling the load variations owing to the brake system (a synchronous generator), measuring the Fundamental Train Frequency of an healthy bearing, detecting unbalance in the rotor and other special features. The author would like to thank the Fondo Sociale Europeo, the Regione Friuli Venezia Giulia and Nidec ASI S.p.A (an electrical motor company) for the sponsorship and the collaboration during the three PhD years covered by the SHARM project ”Manutenzione Preventiva Integrata”.
Questo studio è focalizzato al monitoraggio dello stato di salute delle macchine elettriche con l'obbiettivo finale di monitorare danni meccanici ed elettrici, in condizioni non stazionarie (carico e velocità variabili), con un singolo sistema hardware. Viene quindi proposta ed analizzata la misura della Velocità Angolare Istantanea (Instantaneous Angular Speed - IAS) di una macchina elettrica allo scopo di prevedere l'insorgere di guasti al suo interno. Il Capitolo 1 introduce i principi base relativi alla manutenzione di macchine elettriche. Di frequente, le fermate non programmate sono conseguenti a danni su cuscinetti e su rotore/statore. I sistemi di monitoraggio sono indispensabili quando la macchina è molto importante nel contesto dell'impianto, considerazione esaminata sia dal punto di vista del costo che della sicurezza. In questo capitolo, viene analizzato anche il funzionamento della macchina elettrica. Dopo un'attenta valutazione, per lo sviluppo di questa ricerca sono state selezionate le macchine ad induzione asincrone. Nel capitolo è riportata anche un'analisi bibliografica sulle frequenze caratteristiche delle forzanti elettromagnetiche presenti. Nell'ultima sezione vengono elencate le frequenze tipiche dei danni rilevabili in misure di tipo vibrazionale ed elettrico. Il Capitolo 2 presenta la misura IAS. Questa rappresenta la misurazione della velocità di rotazione dell'albero e viene analizzata con accuratezza, individuando la relazione tra velocità di rotazione e le caratteristiche dell'encoder; inoltre vengono descritti i vari processamenti del segnale. Tale sistema permette di visualizzare ciò che sta accadendo alla macchina durante il suo funzionamento, in una o più rotazioni. Esistono metodi di misura basati o sulla conversione analogico-digitale o che prevedono l’impiego di contatori. I primi si servono di una scheda di acquisizione dati standard, mentre i secondi richiedono l'utilizzo di un hardware specifico, che alle volte può risultare più costoso, ma permette di acquisire i dati occupando una quantità inferiore di memoria. In questa tesi si è scelto di utilizzare un contatore per eseguire la misura IAS, sfruttando il conteggio Elapsed Time (ET). Il Capitolo 3 descrive l'encoder. Il segnale in uscita dal dispositivo viene acquisito con una scheda contatore e con un oscilloscopio in modo da confrontare ed analizzare le differenze presenti. In questo capitolo vengono elencate le tipologie di errore presenti nel sistema encoder: l'errore geometrico, l'errore di quantizzazione, l'errore dovuto alla stabilità del clock interno e l'errore dovuto a fonti esterni di rumore elettrico. Il Capitolo 4 raccoglie tutti i test sperimentali condotti durante il dottorato. Sono stati progettati e costruiti tre setup allo scopo di evidenziare particolari aspetti e problematiche; sono riportate anche due misure eseguite presso la sala prove dell'azienda Nidec ASI S.p.A. Il setup Experimental Test Rig 1 (ETR1) è stato utilizzato per conseguire le seguenti finalità: capire il funzionamento del motore elettrico con velocità variabile, analizzare la differenza della velocità acquisita con un torsiometro laser ed una scheda contatore, confrontare una misura vibrazionale (accelerometro posizionato sullo statore del motore) e la misura IAS, analizzare l'effetto dello sbilanciamento sulla misura IAS. Il setup Experimental Test Rig 2 (ETR2) permette di esaminare l'effetto del carico sulla misura IAS, le armoniche della forza elettromotrice, l'effetto dello slip e del rotore. Il setup Experimental Test Rig 3 (ETR3) è progettato in modo da evidenziare un difetto sulla guida interna di un cuscinetto, considerando anche un carico variabile. L'accelerazione, il voltaggio e la corrente sono confrontate con la Velocità Angolare Istantanea. Il motore viene testato anche applicando una tensione di alimentazione sbilanciata. Le due misure rilevate in Nidec ASI S.p.A dimostrano che la misura IAS può essere implementata in macchine industriali di grandi dimensioni e non solo nei setup di laboratorio. Questa ricerca espone gli aspetti positivi e negativi della misura IAS, evidenziando le capacità di individuare un danno sulla guida interna di un cuscinetto, captare le variazioni di carico prodotte dal freno (un generatore sincrono), misurare la Fundamental Train Frequency di un cuscinetto in buona salute, individuare uno sbilanciamento ed altre funzionalità. L'autore vuole ringraziare il Fondo Sociale Europeo, la Regione Friuli Venezia Giulia e l'azienda Nidec ASI S.p.A (produttore di macchine elettriche di medio-grandi dimensioni) per la sponsorizzazione e la collaborazione durante i tre anni di dottorato previsti dal progetto SHARM ”Manutenzione Preventiva Integrata”.
XXVII Ciclo
1983
Madamedon, Misan. "The characteristics of instantaneous angular speed of diesel engines for fault diagnosis." Thesis, University of Huddersfield, 2018. http://eprints.hud.ac.uk/id/eprint/34553/.
Повний текст джерелаZhi, Shengke. "Development of an optical method to measure the instantaneous angular speed of machinery in condition monitoring." Thesis, University of Manchester, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.491490.
Повний текст джерелаSambayi, Patrick Mukenyi Kataku. "Drill wear monitoring using instantaneous angular speed : a comparison with conventional technologies used in drill monitoring systems." Diss., University of Pretoria, 2012. http://hdl.handle.net/2263/32282.
Повний текст джерелаDissertation (MEng)--University of Pretoria, 2012.
gm2013
Mechanical and Aeronautical Engineering
MEng
Unrestricted
Sung, Yi-Che, and 宋易哲. "The Diagnosis of Engine Misfire by Analysing the Instantaneous Engine Angular Speed." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/02402455585634237218.
Повний текст джерела國防大學理工學院
車輛及運輸工程碩士班
103
The main purpose of this study is to discuss the accuracy of the instantaneous angular speed (IAS) analysis methods using on the engine misfire detection. The IAS analysis is a common method to detect the engine malfunction of misfiring. The signal of IAS can be measured by the rotary encoder installed on the crankshaft or the camshaft. By analyzing the signal of the IAS, the principles of pattern recognition and threshold value setting were selected to identify the faulty cylinder. However, the characteristic of the “overlapping of the power stroke” in multi-cylinder engine increases the difficulty and complexity of the engine diagnosis. Experiments were performed with an 8-cylinder, V-type, 4-stroke diesel engine. Through the IAS analysis methods and the DAQ system coordinating with control software, the novel diagnostic techniques based on the characteristic of the angular acceleration in the power stroke and the comparison of the angular speed patterns were deveploed in this study. These techniques are more reliable to identify the misfire of the multi-cylinder engine with the obvious characteristic of the overlapping of the power stroke. The PHM (Prognostic Health Management) system based on these techniques has been developed to promote the efficiency of engine diagnosis. The feasibility of the PHM system installing on the automobile engine has been proved in this study. In this research, it also points out that the dynamic load testing is more reliable than steady load testing. The engine temperature is another key factor which can affect the accuracy of the diagnosis.
Частини книг з теми "Instantaneous Angular Speed"
Moustafa, W., O. Cousinard, F. Bolaers, K. Ait Sghir, and J. P. Dron. "Low Speed Bearings’ Instantaneous Angular Speed Behavior." In Proceedings of the 9th IFToMM International Conference on Rotor Dynamics, 509–19. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-06590-8_41.
Повний текст джерелаGomez, Jose L., Adeline Bourdon, Hugo André, and Didier Rémond. "Modelling Roller Bearing Dynamics Inducing Instantaneous Angular Speed Variations." In Proceedings of the 9th IFToMM International Conference on Rotor Dynamics, 431–42. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-06590-8_34.
Повний текст джерелаSpagnol, Marco, and Luigi Bregant. "Instantaneous Angular Speed Analysis, Measurement Errors and Signal Filtering." In Proceedings of the 9th IFToMM International Conference on Rotor Dynamics, 521–31. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-06590-8_42.
Повний текст джерелаRoy, Sankar K., A. R. Mohanty, and C. S. Kumar. "Cepstrum Analysis of Instantaneous Angular Speed for Gearbox Fault Detection." In Advances in Mechanical Engineering, 1117–25. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-0124-1_99.
Повний текст джерелаSpagnol, M., and L. Bregant. "Instantaneous Angular Speed: Encoder-Counter Estimation Compared with Vibration Data." In Lecture Notes in Mechanical Engineering, 347–54. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-39348-8_29.
Повний текст джерелаBruand, Guillaume, Florent Chatelain, Pierre Granjon, Nadine Martin, Christophe Duret, and Hervé Lénon. "Estimating the Rotational Synchronous Component from Instantaneous Angular Speed Signals in Variable Speed Conditions." In Applied Condition Monitoring, 90–100. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-11220-2_10.
Повний текст джерелаBraut, Sanjin, Roberto Zigulic, Goranka Stimac, and Ante Skoblar. "Light Rotor-Stator Partial Rub Characterization Using Instantaneous Angular Speed Measurement." In Mechanisms and Machine Science, 673–82. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-09918-7_60.
Повний текст джерелаRoy, Sankar K., A. R. Mohanty, and C. S. Kumar. "Amplitude Demodulation of Instantaneous Angular Speed for Fault Detection in Multistage Gearbox." In Mechanisms and Machine Science, 951–61. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-09918-7_84.
Повний текст джерелаSpagnol, Marco, Luigi Bregant, and Alessandro Boscarol. "Electrical Induction Motor Higher Harmonics Analysis Based on Instantaneous Angular Speed Measurement." In Applied Condition Monitoring, 27–41. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-20463-5_3.
Повний текст джерелаAndré, Hugo, Adeline Bourdon, and Didier Rémond. "Instantaneous Angular Speed Monitoring of a 2MW Wind Turbine Using a Parametrization Process." In Condition Monitoring of Machinery in Non-Stationary Operations, 415–23. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-28768-8_44.
Повний текст джерелаТези доповідей конференцій з теми "Instantaneous Angular Speed"
Zeng, Qiang, Mones Zainab, Yimin Shao, Fengshou Gu, and Andrew D. Ball. "Planetary gear fault diagnosis based on instantaneous angular speed analysis." In 2017 23rd International Conference on Automation and Computing (ICAC). IEEE, 2017. http://dx.doi.org/10.23919/iconac.2017.8081996.
Повний текст джерелаArif, S. Javed, Imdadullah, and M. S. Jamil Asghar. "Rotating magnetic field based instantaneous angular speed measurement of low speed rotating machines." In 2011 International Conference on Multimedia, Signal Processing and Communication Technologies (IMPACT). IEEE, 2011. http://dx.doi.org/10.1109/mspct.2011.6150487.
Повний текст джерелаLamraoui, M., M. Thomas, M. El Badaoui, and F. Girardin. "Cyclostationarity analysis of instantaneous angular speeds for monitoring chatter in high speed milling." In IECON 2012 - 38th Annual Conference of IEEE Industrial Electronics. IEEE, 2012. http://dx.doi.org/10.1109/iecon.2012.6389274.
Повний текст джерелаLiang, Lin, Zhe Lei, Maolin Li, and Xiangwei Kong. "Feature Extraction of Gearbox based on Order Analysis of Instantaneous Angular Speed." In 2018 IEEE 7th Data Driven Control and Learning Systems Conference (DDCLS). IEEE, 2018. http://dx.doi.org/10.1109/ddcls.2018.8516049.
Повний текст джерелаAndre´, Hugo, Didier Re´mond, and Adeline Bourdon. "On the Use of the Instantaneous Angular Speed Measurement in Non Stationary Mechanism Monitoring." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-47470.
Повний текст джерелаZhao, Ming, Jing Lin, and Junhua Xu. "The measurement and error analysis of instantaneous angular speed using optical incremental encoder." In International Conference on Optical Instruments and Technology (OIT2011). SPIE, 2011. http://dx.doi.org/10.1117/12.902978.
Повний текст джерелаAl-Hashmi, S., F. Gu, Y. Li, A. D. Ball, Tao Fen, and Ke Lui. "Cavitation Detection of a Centrifugal Pump Using Instantanous Angular Speed." In ASME 7th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2004. http://dx.doi.org/10.1115/esda2004-58255.
Повний текст джерелаGubran, Ahmed A., and Jyoti K. Sinha. "Comparison Between Long and Short Blade Vibration Using Shaft Instantaneous Angular Speed in Rotating Machine." In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-25904.
Повний текст джерелаHua, Jianxiang, and Yu Guo. "Fault Detection Based on Improved Cross-correlation Order Spectrum of Sun Gear Instantaneous Angular Speed Signal." In 2021 International Conference on Sensing, Measurement & Data Analytics in the era of Artificial Intelligence (ICSMD). IEEE, 2021. http://dx.doi.org/10.1109/icsmd53520.2021.9670815.
Повний текст джерелаNi, Z., X. Wang, and J. Wang. "Modeling of instantaneous angular speed variation of large clearance cylindrical roller bearing with local defects in rolling element." In 1st International Conference on Mechanical System Dynamics (ICMSD 2022). Institution of Engineering and Technology, 2022. http://dx.doi.org/10.1049/icp.2022.1918.
Повний текст джерела