Practical Balancing Of Rotating Machinery

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Practical Balancing Of Rotating Machinery

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Author : Derek Norfield
language : en
Publisher: Elsevier
Release Date : 2011-04-18

Practical Balancing Of Rotating Machinery written by Derek Norfield and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-04-18 with Technology & Engineering categories.

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

Balancing Of High Speed Machinery

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Author : Mark S. Darlow
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Balancing Of High Speed Machinery written by Mark S. Darlow and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.

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.

Vibrations Of Rotating Machinery

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Author : Osami Matsushita
language : en
Publisher: Springer
Release Date : 2017-05-22

Vibrations Of Rotating Machinery written by Osami Matsushita and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-05-22 with Technology & Engineering categories.

This book opens with an explanation of the vibrations of a single degree-of-freedom (dof) system for all beginners. Subsequently, vibration analysis of multi-dof systems is explained by modal analysis. Mode synthesis modeling is then introduced for system reduction, which aids understanding in a simplified manner of how complicated rotors behave. Rotor balancing techniques are offered for rigid and flexible rotors through several examples. Consideration of gyroscopic influences on the rotordynamics is then provided and vibration evaluation of a rotor-bearing system is emphasized in terms of forward and backward whirl rotor motions through eigenvalue (natural frequency and damping ratio) analysis. In addition to these rotordynamics concerning rotating shaft vibration measured in a stationary reference frame, blade vibrations are analyzed with Coriolis forces expressed in a rotating reference frame. Other phenomena that may be assessed in stationary and rotating reference frames include stability characteristics due to rotor internal damping and instabilities due to asymmetric shaft stiffness and thermal unbalance behavior.

Fundamentals Of Rotating Machinery Diagnostics

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Author : Donald E. Bently
language : en
Publisher: American Society of Mechanical Engineers
Release Date : 2002

Fundamentals Of Rotating Machinery Diagnostics written by Donald E. Bently and has been published by American Society of Mechanical Engineers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Science categories.

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.

Dynamics Of Rotating Machines

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Author : M. I. Friswell
language : en
Publisher: Cambridge University Press
Release Date : 2010-03-31

Dynamics Of Rotating Machines written by M. I. Friswell and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-03-31 with Science categories.

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

Rotating Machinery

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Author : Robert B. McMillan
language : en
Publisher: CRC Press
Release Date : 2003-12-02

Rotating Machinery written by Robert B. McMillan and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-12-02 with Technology & Engineering categories.

A theoretical and practical understanding of unbalance and misalignment in rotating equipment is presented here. These two conditions account for the vast majority of problems with rotating equipment encountered in the real world.;Numerous examples and solutions are included to assist in understanding the various concepts. Included is information on vibration and how it is used to determine the operational integrity of rotating machinery. Also detailed are the relationships between various vibration characteristics which provide an understanding of the forces generated within operating machinery when conditions of unbalance and misalignment are present. Resonance and beat frequencies are detailed along with sources and cures.;Also covered are proper inspection procedures, single plane and dual plane methods of balancing rotating equipment, the three circle method of balancing slow speed fans, advanced rim and face method of precision alignment, and the reverse indicator method of alignment plus much more to fortify the learning experience.

Practical Machinery Vibration Analysis And Predictive Maintenance

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Author : Cornelius Scheffer
language : en
Publisher: Elsevier
Release Date : 2004-07-16

Practical Machinery Vibration Analysis And Predictive Maintenance written by Cornelius Scheffer and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-07-16 with Technology & Engineering categories.

Machinery Vibration Analysis and Predictive Maintenance provides a detailed examination of the detection, location and diagnosis of faults in rotating and reciprocating machinery using vibration analysis. The basics and underlying physics of vibration signals are first examined. The acquisition and processing of signals is then reviewed followed by a discussion of machinery fault diagnosis using vibration analysis. Hereafter the important issue of rectifying faults that have been identified using vibration analysis is covered. The book also covers the other techniques of predictive maintenance such as oil and particle analysis, ultrasound and infrared thermography. The latest approaches and equipment used together with the latest techniques in vibration analysis emerging from current research are also highlighted. - Understand the basics of vibration measurement - Apply vibration analysis for different machinery faults - Diagnose machinery-related problems with vibration analysis techniques

Troubleshooting Rotating Machinery

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Author : Robert X. Perez
language : en
Publisher: John Wiley & Sons
Release Date : 2016-07-14

Troubleshooting Rotating Machinery written by Robert X. Perez and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-07-14 with Science categories.

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.

Vibration Problems In Machines

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Author : Arthur W. Lees
language : en
Publisher: CRC Press
Release Date : 2020-07-02

Vibration Problems In Machines written by Arthur W. Lees and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-07-02 with Science categories.

Vibration Problems in Machines explains how to infer information about the internal operations of rotating machines from external measurements through methods used to resolve practical plant problems. Second edition includes summary of instrumentation, methods for establishing machine rundown data, relationship between the rundown curves and the ideal frequency response function. The section on balancing has been expanded and examples are given on the strategies for balancing a rotor with a bend, with new section on instabilities. It includes case studies with real plant data, MATLAB® scripts and functions for the modelling and analysis of rotating machines.

Machinery Vibration Balancing Special Reprint Edition

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Author : Victor Wowk
language : en
Publisher: McGraw Hill Professional
Release Date : 1998-10-22

Machinery Vibration Balancing Special Reprint Edition written by Victor Wowk and has been published by McGraw Hill Professional this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998-10-22 with Science categories.

Enables you to measure, isolate, and reduce rotating component's vibration, resonance, or misalignment problem. This book helps you to balance everything from ceiling fans to turbine engines, and select and apply balancing sensors and systems for single-plane and two-plane balancing and overhung and flexible-rotor balancing.