Berwachung Hybrider Schr Gkugellager In Luftfahrttriebwerken
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Berwachung Hybrider Schr Gkugellager In Luftfahrttriebwerken
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Author : Lück, Rudolf
language : de
Publisher: Universitätsverlag der TU Berlin
Release Date : 2018-12-21
Berwachung Hybrider Schr Gkugellager In Luftfahrttriebwerken written by Lück, Rudolf and has been published by Universitätsverlag der TU Berlin this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-12-21 with Technology & Engineering categories.
Es wird ein Konzept zur Überwachung hybrider Schrägkugellager für Hauptwellen von Luftfahrttriebwerken vorgestellt. Gezeigt wird die Auswirkung der Interaktion geschädigter keramischer Wälzkörper mit den Stahllaufringen. Es werden Schwachstellen bei der Berechnung von Kugelrotationsfrequenzen besprochen und Möglichkeiten, die Resultate der Berechnung zu verbessern. Im Vergleich werden Vorteile bei der Erfassung von Lagerschäden durch die Messung von Körperschall gegenüber der Messung von Vibrationen oder der Messung von Metallpartikeln im Öl gezeigt. Nachgewiesen wird, dass eine Erkennung von Lagerschäden zu einem frühen Zeitpunkt im Schädigungsprozess möglich ist. Ein besonderer Wert wird auf Möglichkeiten der Entwicklung eines Lebensdauermodells gelegt, um die verbleibende Lebenszeit eines Lagers nach der Erkennung eines Lagerschadens abschätzen zu können. Eingegangen wird auf eine fortlaufende Eigendiagnose der Überwachungseinheit. A concept to monitor hybrid angular ball bearings is presented. Interactions of damaged balls with the steel raceways are shown. Week points in calculating ball spinning speeds are discussed and methods to improve this are proposed. Results based on sensors measuring structure borne noise are compared to results of vibration sensors and metal particle sensors. It is shown that a detection of bearing failures is possible at an early stage of degradation. A concept for a live time model that estimates the remaining time after detecting a bearing failure is delivered. The governing parameters to estimate remaining life after detecting a bearing failure are identified. A concept of a self-monitoring unit is introduced.
Berwachung Hybrider Schr Gkugellager In Luftfahrttriebwerken
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Author : Rudolf Lück
language : de
Publisher:
Release Date : 2018
Berwachung Hybrider Schr Gkugellager In Luftfahrttriebwerken written by Rudolf Lück and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.
Model Aided Diagnosis Of Mechanical Systems
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Author : Hans Günther Natke
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Model Aided Diagnosis Of Mechanical Systems written by Hans Günther Natke and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Technology & Engineering categories.
Diagnosis of technical systems is important, concerning safety and economics. Monitoring and diagnosis, especially in remote control systems, needs holistic models, as described here. This book describes the fundamentals for technical diagnosis as well as state-of-art tools. Model-based diagnosis and knowledge based diagnosis, fundamentals in decision-making and assessment are included. The foundation of diagnosis for applications is given. The book is written for the expert practising engineer in research and industrial applications.
Gas Turbine Engineering Handbook
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Author : Meherwan P. Boyce
language : en
Publisher: Elsevier
Release Date : 2017-09-01
Gas Turbine Engineering Handbook written by Meherwan P. Boyce and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-09-01 with Mathematics categories.
The Gas Turbine Engineering Handbook has been the standard for engineers involved in the design, selection, and operation of gas turbines. This revision includes new case histories, the latest techniques, and new designs to comply with recently passed legislation. By keeping the book up to date with new, emerging topics, Boyce ensures that this book will remain the standard and most widely used book in this field. The new Third Edition of the Gas Turbine Engineering Hand Book updates the book to cover the new generation of Advanced gas Turbines. It examines the benefit and some of the major problems that have been encountered by these new turbines. The book keeps abreast of the environmental changes and the industries answer to these new regulations. A new chapter on case histories has been added to enable the engineer in the field to keep abreast of problems that are being encountered and the solutions that have resulted in solving them. Comprehensive treatment of Gas Turbines from Design to Operation and Maintenance. In depth treatment of Compressors with emphasis on surge, rotating stall, and choke; Combustors with emphasis on Dry Low NOx Combustors; and Turbines with emphasis on Metallurgy and new cooling schemes. An excellent introductory book for the student and field engineers A special maintenance section dealing with the advanced gas turbines, and special diagnostic charts have been provided that will enable the reader to troubleshoot problems he encounters in the field The third edition consists of many Case Histories of Gas Turbine problems. This should enable the field engineer to avoid some of these same generic problems