Balancing Techniques For High Speed Flexible Rotors
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Balancing Techniques For High Speed Flexible Rotors
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Author : A. J. Smalley
language : en
Publisher:
Release Date : 1978
Balancing Techniques For High Speed Flexible Rotors written by A. J. Smalley and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Balancing of machinery categories.
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.
Advanced Techniques On Multiplane Balancing Of High Speed Flexible Rotor Bearing Systems
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Author : William Foiles
language : en
Publisher:
Release Date : 1983
Advanced Techniques On Multiplane Balancing Of High Speed Flexible Rotor Bearing Systems written by William Foiles and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Rotors categories.
Current Flexible Rotor Bearing System Balancing Techniques Using Computer Simulation
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Author : John R. Kendig
language : en
Publisher:
Release Date : 1975
Current Flexible Rotor Bearing System Balancing Techniques Using Computer Simulation written by John R. Kendig and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with Computer simulation categories.
"As the cost of machinery has risen and the need for dependability, safety and increased performance have in a similar manner increased, the needs of industry for viable flexible rotor balancing techniques has no less increased. Various flexible rotor methods have been advocated for supercritical shafting, but few studies or comparisons have appeared in the open literature. Among the procedures for balancing large and/or high speed (supercritical) rotors are the "N" modal method of Bishop and Gladwell, the "N + B" modal of Federn, the "N" and " + B" simultaneous modal method of Kellenberger, and the influence coefficient method of Lund and Rieger. Each of the aforementioned balancing techniques is examined and explained in detail. The first known modal balancing programs are listed and described. Using these programs as a basis, the influence coefficient method of Lund and Rieger is compared to the modal methods of Bishop and Gladwell, Federn, and Kellenberger. The companies are made with the aid of a Prohl based unbalance response computer program. The rotor systems used for the comparison are flexible shafts, some mounted in damped bearings, and some mounted in undamped bearings. One sample system exhibits rigid body behavior in addition to flexible behavior. These examples form the basis of the first known direct computer based comparison between a current influence balancing technique and the highly developed and distributed modal methods."--Abstract.
Balancing Techniques For High Speed Flexible Rotors
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Author : A. J. Smalley
language : en
Publisher:
Release Date : 1978
Balancing Techniques For High Speed Flexible Rotors written by A. J. Smalley and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Balancing of machinery categories.
Balancing Of Rigid And Flexible Rotors
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Author : Neville F. Rieger
language : en
Publisher:
Release Date : 1986
Balancing Of Rigid And Flexible Rotors written by Neville F. Rieger and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Balancing of machinery categories.
Multi Plane High Speed Balancing Techniques And The Use Of A High Specific Stiffness Ti Borsic Material For Vibration Control
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Author : Glenn Hamburg
language : en
Publisher:
Release Date : 1980
Multi Plane High Speed Balancing Techniques And The Use Of A High Specific Stiffness Ti Borsic Material For Vibration Control written by Glenn Hamburg and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with categories.
This report documents results of multi-plane high-speed balancing demonstration of a flexible rotor and a preliminary design analysis for a high specific stiffness composite material shaft. Both studies had as their objective the management of small turbofan engine low pressure shaft bending critical speeds. The prototype flexible rotor was successfully balanced through 3 critical speeds reaching a maximum of 28,000 rpm, which was 74% of the maximum intended rotor speed of 38,000 rpm. Balancing for operation above the 4th critical speed, which was predicted to occur at 33,000 rpm, was prevented due to a sub-synchronous rotor instability. Causes of the instability were attributed to the configuration of the squeeze film bearing damper and the engine rotor support structure as opposed to any limitation of the balancing techniques employed. The preliminary composite shaft design was completed assuming that a Ti-Borsic metal matrix composite with 60% fiber volume and 40% metal matrix would be used. This 'stiff' shaft was designed as a direct substitute for the multi-plane high speed balancing demonstrator rotor. Analytical studies indicate that the composite rotor will have a 24% third critical speed margin when operating at 38,000 rpm.
Flexible Rotor Balancing By The Influence Coefficient Method
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Author : Juergen M. Tessarzik
language : en
Publisher:
Release Date : 1975
Flexible Rotor Balancing By The Influence Coefficient Method written by Juergen M. Tessarzik and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with Balancing of machinery categories.
High Speed Rotor Balancing
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Author : Walter D. Pilkey
language : en
Publisher:
Release Date : 1978
High Speed Rotor Balancing written by Walter D. Pilkey and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with categories.
This report summarizes the accomplishments of the final year of a study exploring new methods for balancing, analyzing and designing flexible rotating shafts. A technique for identifying rotor bearing parameters is proposed. Then a quadratic programming formulation is presented for influence coefficient balancing with constraints. Finally, a method is developed for determining the optimal axial location of balancing planes. (Author).
Development Of High Speed Balancing Technology
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Author :
language : en
Publisher:
Release Date : 1981
Development Of High Speed Balancing Technology written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with categories.