Rotor Dynamics

Rotor Dynamics PDF Author: J. S. Rao
Publisher: New Age International
ISBN: 9788122409772
Category : Rotors
Languages : en
Pages : 460

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Book Description
The Third Revised And Enlarged Edition Of The Book Presents An In-Depth Study Of The Dynamic Behaviour Of Rotating And Reciprocating Machinery. It Evolved Out Of Lectures Delivered At Different Universities Over The Last Two Decades. The Book Deals With Torsional And Bending Vibrations Of Rotors, Stability Aspects, Balancing And Condition Monitoring. Closed Form Solutions Are Given Wherever Possible And Parametric Studies Presented To Give A Clear Understanding Of The Subject. Transfer Matrix Methods Is Extensively Used For General Class Of Rotors For Both Bending And Torsional Vibrations.Special Attentions Are Given To Transient Analysis Of The Rotors Which Is Becoming An Essential Part Of The Design Of High Speed Machinery. Systems With Fluid Film Bearings, Cracked Rotors And Two Spool Rotors Are Also Presented.A First Course On Theory Of Vibration Is A Prerequisite To This Study. Analysis Used Is Fairly Simple, But Sufficiently Advanced To The Requisite Level Of Predicting Practical Observations. As Far As Possible, Practical Examples Are Illustrated, So That The Book Is Also Useful To Practising Engineers.A Special Feature Of This Book Is Diagnostics Of Rotating Machinery Using Vibration Signature Analysis And Application Of Expert Systems To A Field Engineer In Trouble Shooting Work.

Rotor Dynamics

Rotor Dynamics PDF Author: J. S. Rao
Publisher: New Age International
ISBN: 9788122409772
Category : Rotors
Languages : en
Pages : 460

Get Book Here

Book Description
The Third Revised And Enlarged Edition Of The Book Presents An In-Depth Study Of The Dynamic Behaviour Of Rotating And Reciprocating Machinery. It Evolved Out Of Lectures Delivered At Different Universities Over The Last Two Decades. The Book Deals With Torsional And Bending Vibrations Of Rotors, Stability Aspects, Balancing And Condition Monitoring. Closed Form Solutions Are Given Wherever Possible And Parametric Studies Presented To Give A Clear Understanding Of The Subject. Transfer Matrix Methods Is Extensively Used For General Class Of Rotors For Both Bending And Torsional Vibrations.Special Attentions Are Given To Transient Analysis Of The Rotors Which Is Becoming An Essential Part Of The Design Of High Speed Machinery. Systems With Fluid Film Bearings, Cracked Rotors And Two Spool Rotors Are Also Presented.A First Course On Theory Of Vibration Is A Prerequisite To This Study. Analysis Used Is Fairly Simple, But Sufficiently Advanced To The Requisite Level Of Predicting Practical Observations. As Far As Possible, Practical Examples Are Illustrated, So That The Book Is Also Useful To Practising Engineers.A Special Feature Of This Book Is Diagnostics Of Rotating Machinery Using Vibration Signature Analysis And Application Of Expert Systems To A Field Engineer In Trouble Shooting Work.

Rotors: Stress Analysis and Design

Rotors: Stress Analysis and Design PDF Author: Vincenzo Vullo
Publisher: Springer Science & Business Media
ISBN: 8847025621
Category : Science
Languages : en
Pages : 358

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Book Description
Stress and strain analysis of rotors subjected to surface and body loads, as well as to thermal loads deriving from temperature variation along the radius, constitutes a classic subject of machine design. Nevertheless attention is limited to rotor profiles for which governing equations are solvable in closed form. Furthermore very few actual engineering issues may relate to structures for which stress and strain analysis in the linear elastic field and, even more, under non-linear conditions (i.e. plastic or viscoelastic conditions) produces equations to be solved in closed form. Moreover, when a product is still in its design stage, an analytical formulation with closed-form solution is of course simpler and more versatile than numerical methods, and it allows to quickly define a general configuration, which may then be fine-tuned using such numerical methods. In this view, all subjects are based on analytical-methodological approach, and some new solutions in closed form are presented. The analytical formulation of problems is always carried out considering actual engineering applications. Moreover, in order to make the use of analytical models even more friendly at the product design stage, a function is introduced whereby it is possible to define a fourfold infinity of disk profiles, solid or annular, concave or convex, converging or diverging. Such subjects, even derived from scientific authors’ contributions, are always aimed at designing rotors at the concept stage, i.e. in what precedes detailed design. Among the many contributions, a special mention is due for the following: linear elastic analysis of conical disks and disks with variable profile along its radius according to a power of a linear function, also subjected to thermal load and with variable density; analysis of a variable-profile disk subjected to centrifugal load beyond the material's yield point, introducing the completely general law expressed by a an n-grade polynomial; linear elastic analysis of hyperbolic disk, subjected to thermal load along its radius; linear elastic analysis of a variable-thickness disk according to a power of a linear function, subjected to angular acceleration; etc.

Certain Brake Drums and Rotors from China

Certain Brake Drums and Rotors from China PDF Author: United States International Trade Commission
Publisher:
ISBN:
Category : Automobile supplies industry
Languages : en
Pages : 116

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Book Description


Rotors in the Sand

Rotors in the Sand PDF Author: Don Harvel
Publisher: Bookbaby
ISBN: 9781098303327
Category : Drama
Languages : en
Pages : 400

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Book Description
June 28, 1972, the day I reported to the United Stated Military Academy at West Point, one of our class's first military acts was to subscribe to the Cadet Code of Conduct, swearing not to lie, cheat or steal ... nor tolerate among us anyone who does. I also pledged, as a cadet, and later as an officer, to preserve, protect, and defend the constitution of the United States. Any future allegiance I incurred fell subordinate to these two.Perhaps that's why I developed an affinity to the flying safety field which resides in a sacred niche within the sphere of flying. At the pinnacle of this citadel of truth resides the accident investigation process ... where there is no room or tolerance for politics or innuendo.I accepted the job to investigate the April 9th, 2010 CV-22 Osprey accident with reservations concerning the magnitude of the task and the inherent barriers preventing the collection of evidence a half-a-world away. But I failed to account for the obstacles of full disclosure, politics, and the reluctance of the same entities that assigned me the task, to accept the controversial findings of the investigation.If, at this point, you have read the first few pages of this book looking for an indictment of the government, Air Force, or the contractors who supply weapons of war, put the book back on the shelf ... or click remove from the digital cart. This is no vendetta, tell-all, hatchet job. This book is about facts and truth. Over a period of five months, the Air Force CV-22 accident investigation board traveled thousands of miles, interviewed over one hundred witnesses, and collected mounds of evidence in an inhospitable environment searching for the reason an Osprey aircraft impacted the ground in the remote desert of eastern Afghanistan. The accident took the lives of four personnel aboard the accident airplane.The following pages chronicle the unpublished and exhaustive investigation process, ending with my opinion of the cause of the Osprey accident on th

Vibration Analysis of Rotors

Vibration Analysis of Rotors PDF Author: Chong-Won Lee
Publisher: Springer Science & Business Media
ISBN: 9401581738
Category : Technology & Engineering
Languages : en
Pages : 324

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Book Description
This text is intended for use as an advanced course in either rotordynamics or vibration at the graduate level. This text has mostly grown out of the research work in my laboratory and the lectures given to graduate students in the Mechanical Engineering Department, KAIST. The text contains a variety of topics not normally found in rotordynamics or vibration textbooks. The text emphasizes the analytical aspects and is thus quite different from conventional rotordynamics texts; potential readers are expected to have a firm background in elementary rotordynamics and vibration. In most previously published rotordynamics texts, the behavior of simple rotors has been of a primary concern, while more realistic, multi-degree-f-freedom or continuous systems are seldom treated in a rigorous way, mostly due to the difficulty of a mathematical treatment of such complicated systems. When one wanted to gain a deep insight into dynamic phenomena of complicated rotor systems, one has, in the past, either had to rely on computational techniques, such as the transfer matrix and finite element methods, or cautiously to extend ideas learned from simple rotors whose analytical solutions are readily available. The former methods are limited in the interpretation of results, since the calculations relate only to the simulated case, not to more general system behavior. Ideas learned from simple rotors can, fortunately, often be extended to many practical rotor systems, but there is of course no guarantee of their validity.

Certain Brake Drums and Rotors from China, Inv. TA-421-3

Certain Brake Drums and Rotors from China, Inv. TA-421-3 PDF Author:
Publisher: DIANE Publishing
ISBN: 1457821117
Category :
Languages : en
Pages : 35

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Book Description


Rotor Systems

Rotor Systems PDF Author: Rajiv Tiwari
Publisher: CRC Press
ISBN: 1351863630
Category : Science
Languages : en
Pages : 1225

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Book Description
The purpose of this book is to give a basic understanding of rotor dynamics phenomena with the help of simple rotor models and subsequently, the modern analysis methods for real life rotor systems. This background will be helpful in the identification of rotor-bearing system parameters and its use in futuristic model-based condition monitoring and, fault diagnostics and prognostics. The book starts with introductory material for finite element methods and moves to linear and non-linear vibrations, continuous systems, vibration measurement techniques, signal processing and error analysis, general identification techniques in engineering systems, and MATLAB analysis of simple rotors. Key Features: • Covers both transfer matrix methods (TMM) and finite element methods (FEM) • Discusses transverse and torsional vibrations • Includes worked examples with simplicity of mathematical background and a modern numerical method approach • Explores the concepts of instability analysis and dynamic balancing • Provides a basic understanding of rotor dynamics phenomena with the help of simple rotor models including modern analysis methods for real life rotor systems.

Official Gazette of the United States Patent Office

Official Gazette of the United States Patent Office PDF Author: USA Patent Office
Publisher:
ISBN:
Category :
Languages : en
Pages : 1146

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Book Description


Flywheel Rotor Safe-Life Technology: Literature Search Summary

Flywheel Rotor Safe-Life Technology: Literature Search Summary PDF Author:
Publisher: DIANE Publishing
ISBN: 1428917586
Category :
Languages : en
Pages : 300

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Book Description


Proceedings of the 10th International Conference on Rotor Dynamics – IFToMM

Proceedings of the 10th International Conference on Rotor Dynamics – IFToMM PDF Author: Katia Lucchesi Cavalca
Publisher: Springer
ISBN: 3319992724
Category : Technology & Engineering
Languages : en
Pages : 556

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Book Description
IFToMM conferences have a history of success due to the various advances achieved in the field of rotor dynamics over the past three decades. These meetings have since become a leading global event, bringing together specialists from industry and academia to promote the exchange of knowledge, ideas, and information on the latest developments in the dynamics of rotating machinery. The scope of the conference is broad, including e.g. active components and vibration control, balancing, bearings, condition monitoring, dynamic analysis and stability, wind turbines and generators, electromechanical interactions in rotor dynamics and turbochargers. The proceedings are divided into four volumes. This fourth volume covers the following main topics: aero-engines; turbochargers; eolian (wind) generators; automotive rotating systems; and hydro power plants.