Practical Balancing of Rotating Machinery

Practical Balancing of Rotating Machinery

Author: Derek Norfield

Publisher: Elsevier

Published: 2011-04-18

Total Pages: 228

ISBN-13: 0080459382

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Rotating machinery (eg pumps, motors, compressors) is normally manufactured to precise measurements but there comes a point when the costs of manufacture mean that further precision is not cost-effective and thus any slight imbalance inherent in the machine will need to be attended to after manufacture. When such machinery is in operation, often at very high speeds of thousands of revs per minute, any imbalance will set up vibration and often noise. In addition, such imbalance will cause extra wear and loss of efficiency in the machine. The answer is to balance the affected parts of the machine so that it operates smoothly and efficiently.This book is a practical account of such balancing techniques e.g how to balance a rotor, how to set up and verify performance of a balancing machine, and procedures for on-site balancing. In addition, other common causes of vibration will be covered e.g. misalignment, bad bearings and looseness.This book is the distillation of a successful course run by the author and developed over 20 years. University engineering departments do not teach balancing techniques beyond the very basic, and there is a need for educators and engineers to have a practical book available on the topic.·A practical book which will help the reader understand the importance of balance in today's high technology world·Outlines the history of dynamic balancing and other vibration reduction techniques·Profusely illustrated throughout


Machinery Vibration

Machinery Vibration

Author: Victor Wowk

Publisher: McGraw-Hill Professional Publishing

Published: 1995

Total Pages: 344

ISBN-13:

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Shows you how to implement simple methods to mass balance without expensive instruments, and explores such topics as the vestor mathematics of balancing, mass centering, index balancing, and designs for balance weights. It features several illustrations, real-world case studies, and worked-out problems.


Fundamentals of Rotating Machinery Diagnostics

Fundamentals of Rotating Machinery Diagnostics

Author: Donald E. Bently

Publisher: American Society of Mechanical Engineers

Published: 2002

Total Pages: 768

ISBN-13:

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A practical course in the fundamentals of machinery diagnostics for anyone who works with rotating machinery, from operator to manager, from design engineer to machinery diagnostician. This comprehensive book thoroughly explains and demystifies important concepts needed for effective machinery malfunction diagnosis: (A) Vibration fundamentals: vibration, phase, and vibration vectors. (B) Data plots: timebase, average shaft centerline, polar, Bode, APHT, spectrum, trend XY, and the orbit. (C) Rotor dynamics: the rotor model, dynamic stiffness, modes of vibration, anisotropic (asymmetric) stiffness, stability analysis, torsional and axial vibration, and basic balancing. Modern root locus methods (pioneered by Walter R. Evans) are used throughout this book. (D) Malfunctions: unbalance, rotor bow, high radial loads, misalignment, rub and looseness, fluid-induced instability, and shaft cracks. Hundreds of full-color illustrations explain key concepts, and several detailed case studies show how these concepts were used to solve real machinery problems. A comprehensive glossary of diagnostic terms is included.


Machinery Vibration: Measurement and Analysis

Machinery Vibration: Measurement and Analysis

Author: Victor Wowk

Publisher: McGraw Hill Professional

Published: 1991-07-22

Total Pages: 372

ISBN-13: 9780070719361

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Shows how to use state-of-the-art instrumentation - transducers and fast fourier transform (FFT) specturm analyzers - to monitor machine conditions using the vibration signature.


Dynamics of Rotating Machines

Dynamics of Rotating Machines

Author: M. I. Friswell

Publisher: Cambridge University Press

Published: 2010-03-31

Total Pages: 545

ISBN-13: 0521850169

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Enables engineers to understand the dynamics of rotating machines, from basic explanations to detailed numerical models and analysis.


10th International Conference on Vibrations in Rotating Machinery

10th International Conference on Vibrations in Rotating Machinery

Author: Institution of Mechanical Engineers

Publisher: Elsevier

Published: 2012-09-11

Total Pages: 847

ISBN-13: 085709453X

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This book presents the papers from the 10th International Conference on Vibrations in Rotating Machinery. This conference, first held in 1976, has defined and redefined the state-of-the-art in the many aspects of vibration encountered in rotating machinery. Distinguished by an excellent mix of industrial and academic participation achieved, these papers present the latest methods of theoretical, experimental and computational rotordynamics, alongside the current issues of concern in the further development of rotating machines. Topics are aimed at propelling forward the standards of excellence in the design and operation of rotating machines. - Presents latest methods of theoretical, experimental and computational rotordynamics - Covers current issues of concern in the further development of rotating machines


Selected Papers Of C C Lin With Commentary (In 2 Volumes)

Selected Papers Of C C Lin With Commentary (In 2 Volumes)

Author: Yuan Chi

Publisher: World Scientific

Published: 1987-08-01

Total Pages: 1047

ISBN-13: 9814583286

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One of the most prolific applied mathematicians of the mid-twentieth century, Prof Lin is a highly respected professor at MIT. These volumes, a collection of Prof Lin's papers from 1943 to 1986, is an attempt to exhibit a historical perception of the development of ideas in the following areas of research:Stability of Parallel FlowsTurbulenceSpiral Structure of GalaxiesProf Lin has written short comments and personal recollections on the development of thinking in these subjects. In addition to research papers, there are two essays dealing with the basic thinking that underlies the development of applied mathematics as an academic discipline in USA. Other topics of interest are Aerodynamics, Liquid Helium, Solid State Physics, Plasticity and Magnetohydrodynamics. About 51 papers are included in these two volumes.


Troubleshooting Rotating Machinery

Troubleshooting Rotating Machinery

Author: Robert X. Perez

Publisher: John Wiley & Sons

Published: 2016-07-14

Total Pages: 384

ISBN-13: 1119294398

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Process machines are critical to the profitability of processes. Safe, efficient and reliable machines are required to maintain dependable manufacturing processes that can create saleable, on-spec product on time, and at the desired production rate. As the wards of process machinery, we wish to keep our equipment in serviceable condition. One of the most challenging aspects of a machinery professional or operator’s job is deciding whether an operating machine should be shut down due to a perceived problem or be allowed to keep operating. If he or she wrongly recommends a repair be conducted, the remaining useful machine life is wasted, but if he or she is right, they can save the organization from severe consequences, such as product releases, fires, costly secondary machine damage, etc. This economic balancing act is at the heart of all machinery assessments. Troubleshooting is part science and part art. Simple troubleshooting tables or decision trees are rarely effective in solving complex, real-world machine problems. For this reason, the authors want to offer a novel way to attack machinery issues that can adversely affect the reliability and efficiency of your plant processes. The methodology presented in this book is not a rigid “cook book” approach but rather a flexible and dynamic process aimed at exploring process plant machines holistically, in order uncover the true nature the problem at hand.


Balancing of High-Speed Machinery

Balancing of High-Speed Machinery

Author: Mark S. Darlow

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 197

ISBN-13: 1461236568

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Modern rotating machinery, particularly turbomachinery, is frequently being designed to operate at higher speeds than in the past. Consequently, there is an increased need to balance high-speed rotors. The purpose of this book is to provide the engineering student or practicing engineer with a single, complete reference on high-speed rotor balancing. To this end, a detailed analytical background and practical application procedures are presented for each of the principal high-speed rotor balancing methods, i.e. modal balancing, influence coefficient balancing and the Unified Balancing Approach. This information is supplemented and supported through a presentation of the theoretical development of synchronous rotor vibration and a brief overview of rigid rotor balancing techniques and machines. This is the first time this material is available in a single, concise volume, together with detailed descriptions of application procedures.