Dynamics Of Rotors On Refrigerant Lubricated Gas Foil Bearings
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Dynamics Of Rotors On Refrigerant Lubricated Gas Foil Bearings
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Author : Leister, Tim
language : en
Publisher: KIT Scientific Publishing
Release Date : 2021-10-28
Dynamics Of Rotors On Refrigerant Lubricated Gas Foil Bearings written by Leister, Tim and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-10-28 with Technology & Engineering categories.
The gas foil bearing (GFB) technology is a key factor for the transition to oil-free rotating machinery. Among numerous advantages, GFBs offer the unique ability to be lubricated with working fluids such as refrigerants. However, the computational analysis of refrigerant-lubricated GFB–rotor systems represents an interdisciplinary problem of enormous complexity. This work pushes forward existing limits of feasibility and establishes a new strategy that enables stability and bifurcation analyses.
Advances In Active Bearings In Rotating Machinery
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Author : Athanasios Chasalevris
language : en
Publisher: Springer Nature
Release Date : 2023-05-25
Advances In Active Bearings In Rotating Machinery written by Athanasios Chasalevris and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-05-25 with Technology & Engineering categories.
This book reports on cutting-edge experimental and numerical findings related to the application of active bearings, including smart ones, in rotating machinery. It discusses their role in improving stability and control of rotor systems and reports in depth on the corresponding modeling and control approaches. Chapters are based on peer-reviewed contributions to the 1st Workshop on Active Bearings in Rotating Machinery (ABROM 2022), held on June 29- 30, 2022, in Athens, Greece, and organized in collaboration between the School of Mechanical Engineering of The National Technical University of Athens (NTUA) and the Faculty of Mechanical Engineering of Karlsruhe Institute of Technology (KIT). In connection with the increasing digital transformation of machine elements, this book offers a timely perspective and extensive information on testing methods and experimental procedures involved in the development of intelligent rotors for industrial applications.
On The Influence Of Piecewise Defined Contact Geometries On Friction Dampers
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Author : Aramendiz Fuentes, Jimmy Alberto
language : en
Publisher: KIT Scientific Publishing
Release Date : 2023-09-12
On The Influence Of Piecewise Defined Contact Geometries On Friction Dampers written by Aramendiz Fuentes, Jimmy Alberto and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-09-12 with categories.
This work considers dampers that do not solely focus on a single strategy but instead combine them. The capabilities of conventional dry friction dampers are expanded by taking into account piecewise defined contact geometries. This leads to friction dampers that change their behavior depending on the amplitude of the oscillations. The vibration damping device in this work, introduces damping at high oscillation amplitudes and takes advantage of absorption at low oscillation amplitudes.
Thermomechanischer Kontakt Und Stochastische Dynamik Gleitender K Rper Mit Rauen Oberfl Chen
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Author : Oestringer, Lukas Julian
language : de
Publisher: KIT Scientific Publishing
Release Date : 2023-06-28
Thermomechanischer Kontakt Und Stochastische Dynamik Gleitender K Rper Mit Rauen Oberfl Chen written by Oestringer, Lukas Julian and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-06-28 with categories.
In dieser Arbeit wird der Reibwert für den trockenen Kontakt zweier gleitender metallischer Körper in Abhängigkeit verschiedener physikalischer Parameter berechnet. Dafür wird ein thermomechanisches Modell entwickelt und für verschiedene Kontaktkonfigurationen unter Berücksichtigung der Oberflächenrauigkeit beider Kontaktkörper ausgewertet. Darüber hinausgehende Untersuchungen zu den Auswirkungen des berechneten Reibwerts im Kontext von reibungserregten Schwingungen schließen sich an. - Within this work, the friction coefficient is calculated for the dry contact of two sliding metallic bodies as a function of various physical parameters. For this purpose, a thermomechanical model is developed and evaluated for different contact configurations considering the surface roughness of both contact bodies. Subsequent investigations on the consequences of the calculated friction coefficient in the context of friction-induced vibrations are carried out.
Ein Beitrag Zur Asymptotischen Analyse Der Hydraulischen Ventilsteuerungen
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Author : Schröders, Simon
language : de
Publisher: KIT Scientific Publishing
Release Date : 2022-09-19
Ein Beitrag Zur Asymptotischen Analyse Der Hydraulischen Ventilsteuerungen written by Schröders, Simon and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-09-19 with Technology & Engineering categories.
Für die dynamische Analyse hydraulischer Ventile wird ein Verfahren basierend auf der singulären Störungsrechnung und dem Mittelwertbildungsverfahren entwickelt. Es erfolgt die Berechnung periodischer Lösungen sowie die Analyse der Stabilität unter dem Einfluss nicht-glatter Phänomene. Basierend auf dieser Analyse werden reduzierte Modelle entwickelt, mit denen eine teils signifikante Rechenzeitersparnis in der Simulation instationärer Bewegungen und in der nichtlinearen Regelung erzielt wird. - A method based on the singular perturbation theory and the averaging method is developed for the dynamic analysis of hydraulic valves. Periodic solutions are calculated and stability is analyzed under the influence of non-smooth phenomena. Based on this analysis, reduced models are developed, which exhibit significantly improved computational time efficiency, both in the simulation of non-stationary motions as well as in nonlinear valve control.
The Tribology Handbook
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Author : Michael J Neale
language : en
Publisher: Elsevier
Release Date : 1995-12-15
The Tribology Handbook written by Michael J Neale and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995-12-15 with Technology & Engineering categories.
The renowned reference work is a practical guide to the selection and design of the components of machines and to their lubrication. It has been completely revised for this second edition by leading experts in the area.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1994
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Aeronautics categories.
An Introduction To Predictive Maintenance
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Author : R. Keith Mobley
language : en
Publisher: Elsevier
Release Date : 2002-10-24
An Introduction To Predictive Maintenance written by R. Keith Mobley and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-10-24 with Technology & Engineering categories.
This second edition of An Introduction to Predictive Maintenance helps plant, process, maintenance and reliability managers and engineers to develop and implement a comprehensive maintenance management program, providing proven strategies for regularly monitoring critical process equipment and systems, predicting machine failures, and scheduling maintenance accordingly. Since the publication of the first edition in 1990, there have been many changes in both technology and methodology, including financial implications, the role of a maintenance organization, predictive maintenance techniques, various analyses, and maintenance of the program itself. This revision includes a complete update of the applicable chapters from the first edition as well as six additional chapters outlining the most recent information available. Having already been implemented and maintained successfully in hundreds of manufacturing and process plants worldwide, the practices detailed in this second edition of An Introduction to Predictive Maintenance will save plants and corporations, as well as U.S. industry as a whole, billions of dollars by minimizing unexpected equipment failures and its resultant high maintenance cost while increasing productivity. - A comprehensive introduction to a system of monitoring critical industrial equipment - Optimize the availability of process machinery and greatly reduce the cost of maintenance - Provides the means to improve product quality, productivity and profitability of manufacturing and production plants
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
Proceedings Of I4sdg Workshop 2021
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Author : Giuseppe Quaglia
language : en
Publisher: Springer Nature
Release Date : 2021-10-13
Proceedings Of I4sdg Workshop 2021 written by Giuseppe Quaglia and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-10-13 with Technology & Engineering categories.
This volume contains the papers of the 1st Workshop IFToMM for Sustainable Development Goals (I4SDG), held online on November 25-26, 2021. The main topics of the workshop include the aspects of theory, design and practice of mechanism and machine science which are instrumental in reaching a sustainable development, such as: biomechanical engineering, sustainable energy systems, robotics and mechatronics, green tribology, computational kinematics, dynamics of machinery, industrial applications of mechanism design, gearing and transmissions, multibody dynamics rotor dynamics, vibrations, humanitarian engineering, and socio-technical systems for sustainable and inclusive development. The contributions, which were selected by means of a rigorous international peer-review process, highlight numerous exciting ideas that will spur novel research directions and foster multidisciplinary collaboration among different specialists, demonstrating that medical and service robotics will drive the technological and societal change in the coming decades.