Journal-Bearing Databook

Journal-Bearing Databook PDF Author: Tsuneo Someya
Publisher: Springer Science & Business Media
ISBN: 3642525091
Category : Technology & Engineering
Languages : en
Pages : 336

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Book Description
Journal bearings, which are used in all kinds of rotating machinery, do not only support static loads, such as the weight of rotors and load caused by transmitted torque of reduction gears, but are, in addition almost the only machine element that is able to suppress various exciting forces acting on the rotating shaft. As rotating machines have become large and multi-staged, while compactness, high speed, and high output have also been realized in recent years, not only has the bearing load increased, but also the magnitude and variety of exciting forces. Therefore, the role and importance of journal bearings have increased tremendous ly. In particular, for the design of rotating machines with low vibration levels and high reliability, knowledge of the exact characteristic data of bearings, and especial ly of the stiffness or spring coefficients and the damping coefficients of oil films in bearings, is essential. However, the amount of reliable data now applicable to practical design is limited. Through the activity of the Research Subcommittee on Dynamic Charac teristics of Journal Bearings and Their Applications (designated as PSC 28), estab lished and organized in June 1979 through May 1982 within the Japan Society of Mechanical Engineers (JSME), these coefficients, together with static characteris tics, have been calculated and also measured on a number of new test rigs.

Journal-Bearing Databook

Journal-Bearing Databook PDF Author: Tsuneo Someya
Publisher: Springer Science & Business Media
ISBN: 3642525091
Category : Technology & Engineering
Languages : en
Pages : 336

Get Book Here

Book Description
Journal bearings, which are used in all kinds of rotating machinery, do not only support static loads, such as the weight of rotors and load caused by transmitted torque of reduction gears, but are, in addition almost the only machine element that is able to suppress various exciting forces acting on the rotating shaft. As rotating machines have become large and multi-staged, while compactness, high speed, and high output have also been realized in recent years, not only has the bearing load increased, but also the magnitude and variety of exciting forces. Therefore, the role and importance of journal bearings have increased tremendous ly. In particular, for the design of rotating machines with low vibration levels and high reliability, knowledge of the exact characteristic data of bearings, and especial ly of the stiffness or spring coefficients and the damping coefficients of oil films in bearings, is essential. However, the amount of reliable data now applicable to practical design is limited. Through the activity of the Research Subcommittee on Dynamic Charac teristics of Journal Bearings and Their Applications (designated as PSC 28), estab lished and organized in June 1979 through May 1982 within the Japan Society of Mechanical Engineers (JSME), these coefficients, together with static characteris tics, have been calculated and also measured on a number of new test rigs.

Journal-bearing Databook

Journal-bearing Databook PDF Author: Tsuneo Someya
Publisher: Springer Verlag
ISBN: 9780387170749
Category : Technology & Engineering
Languages : en
Pages : 323

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Book Description


Journal-Bearing Databook

Journal-Bearing Databook PDF Author: Tsuneo Someya
Publisher:
ISBN: 9783642525100
Category :
Languages : en
Pages : 344

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Book Description


Hydrodynamic Lubrication

Hydrodynamic Lubrication PDF Author: Yukio Hori
Publisher: Springer Science & Business Media
ISBN: 4431279016
Category : Technology & Engineering
Languages : en
Pages : 239

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Book Description
This book discusses hydrodynamic lubrication in detail, based on the author’s own researches. Although this subject plays an important role in mechanical engineering, few books have been published on the subject. The first four chapters of this book are preparations for the following five. This book was written with graduate students, researchers and designers in view.

Magnetic Bearings

Magnetic Bearings PDF Author: G. Schweitzer
Publisher: Springer Science & Business Media
ISBN: 3642517242
Category : Technology & Engineering
Languages : en
Pages : 387

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Book Description
Magnetic Bearings are bearings where the suspension forces are generated magnetically without any contact. The advantages to modern machinery are obvious: no mechanical wear, no lubrication, potential for high rotor speed, accuracy, and high dynamic performance, new constructional solutions to a classical problem in machine dynamics. The realization of such bearings is in rapid progress. Examples for application areas are turbomachinery, centrifuges, vacuum techniques, machine tool spindles, chemical industry, medical devices, robotics, high speed drives, spacecraft equipment, con tactless actuators, vibration isolation. The Symposium is demonstrating the current state of the art in this developing field of mechatronics, showing actual research efforts, reporting on applications in the various areas, and discussing open questions. The main purpose of the Symposium has been to establish a common information basis for people working on magnetic bearings. It will point to promising areas, and it will help to facilitate decisions on research and development projects, and on investments for applications.

Rotordynamics

Rotordynamics PDF Author: Agnieszka Muszynska
Publisher: CRC Press
ISBN: 1420027794
Category : Science
Languages : en
Pages : 1100

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Book Description
As the most important parts of rotating machinery, rotors are also the most prone to mechanical vibrations, which may lead to machine failure. Correction is only possible when proper and accurate diagnosis is obtained through understanding of rotor operation and all of the potential malfunctions that may occur. Mathematical modeling, in particular

Rotating Machinery Vibration

Rotating Machinery Vibration PDF Author: Maurice L. Adams
Publisher: CRC Press
ISBN: 1439807183
Category : Technology & Engineering
Languages : en
Pages : 478

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Book Description
Diagnosis and correction are critical tasks for the vibrations engineer. Many causes of rotor vibration are so subtle and pervasive that excessive vibration continues to occur despite the use of usually effective design practices and methods of avoidance.Rotating Machinery Vibration: From Analysis to Troubleshooting provides a comprehensive, consol

Bearing Dynamic Coefficients in Rotordynamics

Bearing Dynamic Coefficients in Rotordynamics PDF Author: Lukasz Brenkacz
Publisher: John Wiley & Sons
ISBN: 1119759242
Category : Technology & Engineering
Languages : en
Pages : 189

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Book Description
A guide to bearing dynamic coefficients in rotordynamics that includes various computation methods Bearing Dynamic Coefficients in Rotordynamics delivers an authoritative guide to the fundamentals of bearing and bearing dynamic coefficients containing various computation methods. Three of the most popular and state-of-the-art methods of determining coefficients are discussed in detail. The computation methods covered include an experimental linear method created by the author, and numerical linear and nonlinear methods using the finite element method. The author—a renowned expert on the topic—presents the results and discusses the limitations of the various methods. Accessibly written, the book provides a clear analysis of the fundamental phenomena in rotor dynamics and includes many illustrations from numerical analysis and the results of the experimental research. Filled with practical examples, the book also includes a companion website hosting code used to calculate the dynamic coefficients of journal bearings. This important book: Covers examples of different computation methods, presents results, and discusses limitations of each Reviews the fundamentals of bearing and bearing dynamic coefficients Includes illustrations from the numerical analysis and results of the experimental research Offers myriad practical examples and a companion website Written for researchers and practitioners working in rotordynamics, Bearing Dynamic Coefficients in Rotordynamics will also earn a place in the libraries of graduate students in mechanical and aerospace engineering who seek a comprehensive treatment of the foundations of this subject.

Machine Design Data Book

Machine Design Data Book PDF Author: Sadhu Singh
Publisher: KHANNA PUBLISHING HOUSE
ISBN: 9382609512
Category : Technology & Engineering
Languages : en
Pages : 318

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Book Description
The book shall be useful to the students and teacher of all Indian Universities and Institutions in the branches of mechanical Engineering, Production Engineering, Aeronautical Engineering, Agricultural Engineering, Chemical Engineering and other allied branches.

Advances in Steam Turbines for Modern Power Plants

Advances in Steam Turbines for Modern Power Plants PDF Author: Tadashi Tanuma
Publisher: Woodhead Publishing
ISBN: 0081003250
Category : Technology & Engineering
Languages : en
Pages : 569

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Book Description
Advances in Steam Turbines for Modern Power Plants provides an authoritative review of steam turbine design optimization, analysis and measurement, the development of steam turbine blades, and other critical components, including turbine retrofitting and steam turbines for renewable power plants. As a very large proportion of the world's electricity is currently generated in systems driven by steam turbines, (and will most likely remain the case in the future) with steam turbines operating in fossil-fuel, cogeneration, combined cycle, integrated gasification combined cycle, geothermal, solar thermal, and nuclear plants across the world, this book provides a comprehensive assessment of the research and work that has been completed over the past decades. - Presents an in-depth review on steam turbine design optimization, analysis, and measurement - Written by a range of experts in the area - Provides an overview of turbine retrofitting and advanced applications in power generation