Dynamics of Rotors on Refrigerant-Lubricated Gas Foil Bearings
Dynamics of Rotors on Refrigerant-Lubricated Gas Foil Bearings

Author: Leister, Tim

Publisher: KIT Scientific Publishing

Published: 2021-10-28

Total Pages: 192

ISBN-13: 3731511126

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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
Advances in Active Bearings in Rotating Machinery

Author: Athanasios Chasalevris

Publisher: Springer Nature

Published: 2023-06-26

Total Pages: 218

ISBN-13: 3031323947

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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
On the Influence of Piecewise Defined Contact Geometries on Friction Dampers

Author: Aramendiz Fuentes, Jimmy Alberto

Publisher: KIT Scientific Publishing

Published: 2023-09-12

Total Pages: 180

ISBN-13: 373151267X

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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.

Tribology of Interface Layers
Tribology of Interface Layers

Author: Hooshang Heshmat

Publisher: CRC Press

Published: 2010-05-25

Total Pages: 468

ISBN-13: 1000611140

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To this point, the field of lubrication has been conceptualized using several noncontiguous modes of operation- boundary, fluid-film, and dry and solid lubrication. Engineers and analysts have long had to deal with old evidence that many tribological devices, such as flat surface and centrally pivoted sliders, can act as viable bearings- contradict

Handbook of Lubrication and Tribology
Handbook of Lubrication and Tribology

Author: George E. Totten

Publisher: CRC Press

Published: 2006-04-06

Total Pages: 1219

ISBN-13: 1420003844

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When it was first published some two decades ago, the original Handbook of Lubrication and Tribology stood on technology's cutting-edge as the first comprehensive reference to assist the emerging science of tribology lubrication. Later, followed by Volume II, Theory and Design and Volume III, Monitoring, Materials, Synthetic Lubricants, and Ap