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Author : F. P. Origer
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (957 download)
Download or read book Bearing Damage Detection Methods for Production Diesel Engine written by F. P. Origer and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : F. P. Origer
Publisher :
ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (366 download)
Download or read book Bearing Damage Detection Method for Production Diesel Engines written by F. P. Origer and published by . This book was released on 1973 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Adm Nasa
Publisher :
ISBN 13 : 9781730784149
Total Pages : 66 pages
Book Rating : 4.7/5 (841 download)
Download or read book Investigation of a Method to Reduce Cavitation in Diesel Engine Bearings written by National Aeronautics and Space Adm Nasa and published by . This book was released on 2018-11-02 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sonoluminescence is the effect of producing light from sound and occurs when a gas bubble is trapped in a fluid filled cavity and is forced to collapse under a barrage of sound waves. Frenzel and Schultes discovered this phenomenon in 1934 while exposing acoustic waves to photographic plates. This effect was not well understood until 1988 when Crum and Gaitan discovered the necessary conditions for producing single bubble sonoluminescence in the laboratory. The luminescence is a result of the bubble violently collapsing from sound waves and this shares a close association with vibratory cavitation. Cavitation erosion is known to cause damage to rotational machinery when the collapse is near to surfaces due to the high pressures associated with bubble collapse. With these high pressures and temperatures there is a considerable amount of damage to the outside layer of a bearing, thereby, reducing its useful life. An experiment was constructed to generate sonoluminescence in the laboratory in order to obtain a greater understanding of this phenomenon and its association with bubble cavitation. Most of the research was done to investigate how to obtain single bubble sonoluminescence under different conditions and to determine how to detect it. Success in this has inspired several theories on how to use the methods for generating sonoluminescence to control cavitation in fluids under industrial conditions. Keith, Theo G., Jr. and Honaker, Robert W. Glenn Research Center...
Author :
Publisher :
ISBN 13 :
Total Pages : 682 pages
Book Rating : 4.X/5 (1 download)
Download or read book Automotive Engineering written by and published by . This book was released on 1973 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Institute of Standards and Technology (U.S.)
Publisher :
ISBN 13 :
Total Pages : 492 pages
Book Rating : 4.:/5 (31 download)
Download or read book Publications of the National Institute of Standards and Technology ... Catalog written by National Institute of Standards and Technology (U.S.) and published by . This book was released on 1982 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download Cumulative Index [of The] SAE Papers PDF Online Free](https://books.google.com/books/content/images/frontcover/mmIcAQAAMAAJ?fife=w200-h370)
Author : Society of Automotive Engineers
Publisher :
ISBN 13 :
Total Pages : 1646 pages
Book Rating : 4.3/5 (91 download)
Download or read book Cumulative Index [of The] SAE Papers written by Society of Automotive Engineers and published by . This book was released on 1965 with total page 1646 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Levent Eren
Publisher :
ISBN 13 :
Total Pages : 200 pages
Book Rating : 4.:/5 (524 download)
Download or read book Bearing Damage Detection Via Wavelet Packet Decomposition of Stator Current written by Levent Eren and published by . This book was released on 2002 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: The induction motors are used heavily in industrial manufacturing plants. Bearing faults, insulation faults, and rotor faults are the major causes of induction motor failures. Even though the replacement of bearings, greatest single cause of motor faults, is the cheapest fix among the three conditions, it is the most difficult one to detect. This dissertation deals with the detection of incipient bearing defects. Motor current signature analysis, one of currently available predictive maintenance methods, provides continuous monitoring in a non-intrusive way. In this method, the motor current signal is analyzed to detect any defects. The wavelet packet decomposition of the stator current is the proposed method of analysis in this dissertation. The bearing condition monitoring can be easily implemented in a power quality monitor if computationally efficient filter banks are used in the wavelet packet decomposition of the stator current. The use of wavelet packet decomposition enables the analysis of frequency bands that can accommodate the rotational speed dependence of the bearing defect frequencies. The wavelet packet decomposition also offers a better treatment of non-stationary stator current than currently used Fourier techniques.
Author : United States. National Bureau of Standards
Publisher :
ISBN 13 :
Total Pages : 766 pages
Book Rating : 4.3/5 (91 download)
Download or read book Publications written by United States. National Bureau of Standards and published by . This book was released on 1977 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781721821716
Total Pages : 32 pages
Book Rating : 4.8/5 (217 download)
Download or read book Investigation of Tapered Roller Bearing Damage Detection Using Oil Debris Analysis written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-24 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: A diagnostic tool was developed for detecting fatigue damage to tapered roller bearings. Tapered roller bearings are used in helicopter transmissions and have potential for use in high bypass advanced gas turbine aircraft engines. This diagnostic tool was developed and evaluated experimentally by collecting oil debris data from failure progression tests performed by The Timken Company in their Tapered Roller Bearing Health Monitoring Test Rig. Failure progression tests were performed under simulated engine load conditions. Tests were performed on one healthy bearing and three predamaged bearings. During each test, data from an on-line, in-line, inductance type oil debris sensor was monitored and recorded for the occurrence of debris generated during failure of the bearing. The bearing was removed periodically for inspection throughout the failure progression tests. Results indicate the accumulated oil debris mass is a good predictor of damage on tapered roller bearings. The use of a fuzzy logic model to enable an easily interpreted diagnostic metric was proposed and demonstrated. Dempsey, Paula J. and Krieder, Gary and Fichter, Thomas Glenn Research Center NASA/TM-2006-214082, E-15419
Author : United States. National Bureau of Standards
Publisher :
ISBN 13 :
Total Pages : 748 pages
Book Rating : 4.:/5 (42 download)
Download or read book Publications of the National Bureau of Standards ... Catalog written by United States. National Bureau of Standards and published by . This book was released on 1977 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Motor Industry Research Association
Publisher :
ISBN 13 :
Total Pages : 526 pages
Book Rating : 4.F/5 ( download)
Download or read book MIRA Abstracts written by Motor Industry Research Association and published by . This book was released on 1973 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781721653959
Total Pages : 32 pages
Book Rating : 4.6/5 (539 download)
Download or read book Current Status of Hybrid Bearing Damage Detection written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-21 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in material development and processing have led to the introduction of ceramic hybrid bearings for many applications. The introduction of silicon nitride hybrid bearings into the high pressure oxidizer turbopump, on the space shuttle main engine, led NASA to solve a highly persistent and troublesome bearing problem. Hybrid bearings consist of ceramic balls and steel races. The majority of hybrid bearings utilize Si3N4 balls. The aerospace industry is currently studying the use of hybrid bearings and naturally the failure modes of these bearings become an issue in light of the limited data available. In today s turbine engines and helicopter transmissions, the health of the bearings is detected by the properties of the debris found in the lubrication line when damage begins to occur. Current oil debris sensor technology relies on the magnetic properties of the debris to detect damage. Since the ceramic rolling elements of hybrid bearings have no metallic properties, a new sensing system must be developed to indicate the system health if ceramic components are to be safely implemented in aerospace applications. The ceramic oil debris sensor must be capable of detecting ceramic and metallic component damage with sufficient reliability and forewarning to prevent a catastrophic failure. The objective of this research is to provide a background summary on what is currently known about hybrid bearing failure modes and to report preliminary results on the detection of silicon nitride debris, in oil, using a commercial particle counter. Dempsey, Paula J. and Certo, Joseph M. and Morales, Wilfredo Glenn Research Center NASA/TM-2004-212882, ARL-TR-3119, E-14296
Author : Paula J. Dempsey
Publisher : BiblioGov
ISBN 13 : 9781289253745
Total Pages : 22 pages
Book Rating : 4.2/5 (537 download)
Download or read book Investigation of Tapered Roller Bearing Damage Detection Using Oil Debris Analysis written by Paula J. Dempsey and published by BiblioGov. This book was released on 2013-07 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: A diagnostic tool was developed for detecting fatigue damage to tapered roller bearings. Tapered roller bearings are used in helicopter transmissions and have potential for use in high bypass advanced gas turbine aircraft engines. This diagnostic tool was developed and evaluated experimentally by collecting oil debris data from failure progression tests performed by The Timken Company in their Tapered Roller Bearing Health Monitoring Test Rig. Failure progression tests were performed under simulated engine load conditions. Tests were performed on one healthy bearing and three predamaged bearings. During each test, data from an on-line, in-line, inductance type oil debris sensor was monitored and recorded for the occurrence of debris generated during failure of the bearing. The bearing was removed periodically for inspection throughout the failure progression tests. Results indicate the accumulated oil debris mass is a good predictor of damage on tapered roller bearings. The use of a fuzzy logic model to enable an easily interpreted diagnostic metric was proposed and demonstrated.
Author : A. I. Eroshkin
Publisher :
ISBN 13 :
Total Pages : 27 pages
Book Rating : 4.:/5 (227 download)
Download or read book Methods of Diagnosing Failure of Anti-friction Bearings written by A. I. Eroshkin and published by . This book was released on 1968 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: A discussion of methods and for early detection of turbine engine bearing failure. Techniques mentioned involve analysis of metallic particles trapped in engine oil by various means, monitoring, of the electrical resistance of bearings (as a means of determining continuity of oil film on friction surfaces), and spectrographic analysis of noises generated by bearings under different conditions. Equipment used is described and illustrated. (Author).
Author : Doug Woodyard
Publisher : Butterworth-Heinemann
ISBN 13 : 0080943616
Total Pages : 925 pages
Book Rating : 4.0/5 (89 download)
Download or read book Pounder's Marine Diesel Engines and Gas Turbines written by Doug Woodyard and published by Butterworth-Heinemann. This book was released on 2009-08-18 with total page 925 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its first appearance in 1950, Pounder's Marine Diesel Engines has served seagoing engineers, students of the Certificates of Competency examinations and the marine engineering industry throughout the world. Each new edition has noted the changes in engine design and the influence of new technology and economic needs on the marine diesel engine. Now in its ninth edition, Pounder's retains the directness of approach and attention to essential detail that characterized its predecessors. There are new chapters on monitoring control and HiMSEN engines as well as information on developments in electronic-controlled fuel injection. It is fully updated to cover new legislation including that on emissions and provides details on enhancing overall efficiency and cutting CO2 emissions. After experience as a seagoing engineer with the British India Steam Navigation Company, Doug Woodyard held editorial positions with the Institution of Mechanical Engineers and the Institute of Marine Engineers. He subsequently edited The Motor Ship journal for eight years before becoming a freelance editor specializing in shipping, shipbuilding and marine engineering. He is currently technical editor of Marine Propulsion and Auxiliary Machinery, a contributing editor to Speed at Sea, Shipping World and Shipbuilder and a technical press consultant to Rolls-Royce Commercial Marine. Helps engineers to understand the latest changes to marine diesel engineers Careful organisation of the new edition enables readers to access the information they require Brand new chapters focus on monitoring control systems and HiMSEN engines Over 270 high quality, clearly labelled illustrations and figures to aid understanding and help engineers quickly identify what they need to know
Author : United States. National Aeronautics and Space Administration. Office of Reliability and Quality Assurance
Publisher :
ISBN 13 :
Total Pages : 532 pages
Book Rating : 4.F/5 ( download)
Download or read book Reliability Abstracts and Technical Reviews written by United States. National Aeronautics and Space Administration. Office of Reliability and Quality Assurance and published by . This book was released on 1970 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 352 pages
Book Rating : 4.X/5 (2 download)
Download or read book SAE Transactions and Literature written by and published by . This book was released on 1974 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
