Rotors: Stress Analysis and Design

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Author :
Publisher : Springer Science & Business Media
ISBN 13 : 8847025621
Total Pages : 358 pages
Book Rating : 4.8/5 (47 download)

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Book Synopsis Rotors: Stress Analysis and Design by : Vincenzo Vullo

Download or read book Rotors: Stress Analysis and Design written by Vincenzo Vullo and published by Springer Science & Business Media. This book was released on 2013-04-09 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Stress Analysis of 27% Scale Model of AH-64 Main Rotor Hub

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Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Stress Analysis of 27% Scale Model of AH-64 Main Rotor Hub by : Robert V. Hodges

Download or read book Stress Analysis of 27% Scale Model of AH-64 Main Rotor Hub written by Robert V. Hodges and published by . This book was released on 1985 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Aerostructures Directorate (ASTD), NASA Langley Research Center, Hampton, VA as part of the continuing basic research in support of the Army helicopters, built a dynamically scaled model of the AH-64 helicopter rotor hub (fig. 1). This model rotor system is designed for testing in NASA Langley's 4x7 m low-speed wind tunnel. The model will find continued use in future rotorcraft model testing. Hence, its structural integrity must be assured. This paper documents stress analysis for critical components of the rotor hub. The AH-64 hub is essentially articulated with some rotational stiffness about the lead/lag hinge due to the elastomeric dampers and some centrifugally supported torsional stiffness in the strap pack. The critical components include the pitch case, the upper hub plate, the strap pack, and the lead/lag hinge pin assembly. The analysis includes both static and fatigue considerations. Stress analysis of an AH-64 27% scale model rotor hub was performed. Component loads and stresses were calculated based upon blade root loads and motions. The static and fatigue analysis indicates positive margins of safety in all components checked. Using the format developed here, the hub can be stress checked for future applications. Keywords: stress, model rotor hub.

Rotor and Structural Dynamics of Turbomachinery

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Publisher : Springer
ISBN 13 : 331973296X
Total Pages : 306 pages
Book Rating : 4.3/5 (197 download)

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Book Synopsis Rotor and Structural Dynamics of Turbomachinery by : Raj Subbiah

Download or read book Rotor and Structural Dynamics of Turbomachinery written by Raj Subbiah and published by Springer. This book was released on 2018-01-16 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides engineers and scientists with practical fundamentals for turbomachinery design. It presents a detailed analysis of existing procedures for the analysis of rotor and structure dynamics, while keeping mathematical equations to a minimum. Specific terminologies are used for rotors and structures, respectively, allowing the readers to clearly distinguish between the two. Further, the book describes the essential concepts needed to understand rotor failure modes due to lateral and torsional oscillations. It guides the reader from simple single-degree-of-freedom models to the most complex multi-degree-of-freedom systems, and provides useful information concerning steel pedestal stiffness degradation and other structural issues. Fluid-film bearing types and their dynamical behavior are extensively covered and discussed in the context of various turbomachinery applications. The book also discusses shaft alignment and rotor balancing from a practical point of view, providing readers with essential information to help them solve practical problems. As the main body of the book focuses on the diagnostics and description of case studies addressing the most pressing practical issues, together with their successful solutions, it offers a valuable reference guide, helping field engineers manage day-to-day issues with turbomachinery.

Dynamics of Rotating Systems

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Publisher : Springer Science & Business Media
ISBN 13 : 038728687X
Total Pages : 674 pages
Book Rating : 4.3/5 (872 download)

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Book Synopsis Dynamics of Rotating Systems by : Giancarlo Genta

Download or read book Dynamics of Rotating Systems written by Giancarlo Genta and published by Springer Science & Business Media. This book was released on 2007-01-04 with total page 674 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides an up-to-date review of rotor dynamics, dealing with basic topics as well as a number of specialized topics usually available only in journal articles Unlike other books on rotordynamics, this treats the entire machine as a system, with the rotor as just one component

Design, Modeling and Reliability in Rotating Machinery

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Publisher : Wiley-Scrivener
ISBN 13 : 9781119631682
Total Pages : 384 pages
Book Rating : 4.6/5 (316 download)

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Book Synopsis Design, Modeling and Reliability in Rotating Machinery by : Robert X. Perez

Download or read book Design, Modeling and Reliability in Rotating Machinery written by Robert X. Perez and published by Wiley-Scrivener. This book was released on 2022-02-08 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rotating machinery represents a broad category of equipment, which includes pumps, compressors, fans, gas turbines, electric motors, internal combustion engines, and other equipment, that are critical to the efficient operation of process facilities around the world. These machines must be designed to move gases and liquids safely, reliably, and in an environmentally friendly manner. To fully understand rotating machinery, owners must be familiar with their associated technologies, such as machine design, lubrication, fluid dynamics, thermodynamics, rotordynamics, vibration analysis, condition monitoring, maintenance practices, reliability theory, and other topics. The goal of the "Advances in Rotating Machinery" book series is to provide industry practitioners a time-savings means of learning about the most up-to-date rotating machinery ideas and best practices. This three-book series will cover industry-relevant topics, such as design assessments, modeling, reliability improvements, maintenance methods and best practices, reliability audits, data collection, data analysis, condition monitoring, and more. This first volume begins the series by focusing on rotating machinery design assessments, modeling and analysis, and reliability improvement ideas. This broad collection of current rotating machinery topics, written by industry experts, is a must-have for rotating equipment engineers, maintenance personnel, students, and anyone else wanting to stay abreast with current rotating machinery concepts and technology.

Techno-Societal 2020

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Publisher : Springer Nature
ISBN 13 : 3030699250
Total Pages : 1090 pages
Book Rating : 4.0/5 (36 download)

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Book Synopsis Techno-Societal 2020 by : Prashant M. Pawar

Download or read book Techno-Societal 2020 written by Prashant M. Pawar and published by Springer Nature. This book was released on 2021-06-19 with total page 1090 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, divided in two volumes, originates from Techno-Societal 2020: the 3rd International Conference on Advanced Technologies for Societal Applications, Maharashtra, India, that brings together faculty members of various engineering colleges to solve Indian regional relevant problems under the guidance of eminent researchers from various reputed organizations. The focus of this volume is on technologies that help develop and improve society, in particular on issues such as advanced and sustainable technologies for manufacturing processes, environment, livelihood, rural employment, agriculture, energy, transport, sanitation, water, education. This conference aims to help innovators to share their best practices or products developed to solve specific local problems which in turn may help the other researchers to take inspiration to solve problems in their region. On the other hand, technologies proposed by expert researchers may find applications in different regions. This offers a multidisciplinary platform for researchers from a broad range of disciplines of Science, Engineering and Technology for reporting innovations at different levels.

Rotor Dynamics

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Publisher : New Age International
ISBN 13 : 9788122409772
Total Pages : 460 pages
Book Rating : 4.4/5 (97 download)

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Book Synopsis Rotor Dynamics by : J. S. Rao

Download or read book Rotor Dynamics written by J. S. Rao and published by New Age International. This book was released on 1996 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Rotordynamics

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Publisher : CRC Press
ISBN 13 : 1420027794
Total Pages : 1100 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Rotordynamics by : Agnieszka Muszynska

Download or read book Rotordynamics written by Agnieszka Muszynska and published by CRC Press. This book was released on 2005-05-20 with total page 1100 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Rotordynamics Prediction in Engineering

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Author :
Publisher : John Wiley & Sons
ISBN 13 :
Total Pages : 280 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Rotordynamics Prediction in Engineering by : Michel Lalanne

Download or read book Rotordynamics Prediction in Engineering written by Michel Lalanne and published by John Wiley & Sons. This book was released on 1998-02-04 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this updated and revised second edition, the authors present a systematic and practical approach to the analytical and numerical aspects of the prediction of rotordynamics behaviour. The influence of bending is a main theme of the book, although the effects of torsion are also considered. The use of finite element techniques and the characteristics of rotor elements are introduced. The book goes on to consider simple models showing basic phenomena which are then linked to industrial applications such as turbocompressors, high pressure centrifugal compressors, and steam and air turbines. Key features include: The inclusion of a computer program available free of charge on the Internet The development of a simple model of co-axial multirotors New industrial applications and 1995 API specifications This book will be of great interest and value to students and engineers concerned with predictions in rotordynamics and mechanical engineering.

Dynamics of Rotating Machines

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Publisher : Cambridge University Press
ISBN 13 : 0521850169
Total Pages : 545 pages
Book Rating : 4.5/5 (218 download)

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Book Synopsis Dynamics of Rotating Machines by : M. I. Friswell

Download or read book Dynamics of Rotating Machines written by M. I. Friswell and published by Cambridge University Press. This book was released on 2010-03-31 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: Enables engineers to understand the dynamics of rotating machines, from basic explanations to detailed numerical models and analysis.

Experimental Stress Analysis

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Publisher :
ISBN 13 :
Total Pages : 228 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Experimental Stress Analysis by : Society for Experimental Stress Analysis

Download or read book Experimental Stress Analysis written by Society for Experimental Stress Analysis and published by . This book was released on 1960 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vol. 1, no. 1 contains Proceedings of the 17th (or the last) Eastern Photoelasticity Conference.

Analytical Methods in Rotor Dynamics

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Publisher : Springer Science & Business Media
ISBN 13 : 9400759053
Total Pages : 280 pages
Book Rating : 4.4/5 (7 download)

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Book Synopsis Analytical Methods in Rotor Dynamics by : Andrew D. Dimarogonas

Download or read book Analytical Methods in Rotor Dynamics written by Andrew D. Dimarogonas and published by Springer Science & Business Media. This book was released on 2013-02-19 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design and construction of rotating machinery operating at supercritical speeds was, in the 1920s, an event of revolutionary importance for the then new branch of dynamics known as rotor dynamics. In the 1960s, another revolution occurred: In less than a decade, imposed by operational and economic needs, an increase in the power of turbomachinery by one order of magnitude took place. Dynamic analysis of complex rotor forms became a necessity, while the importance of approximate methods for dynamic analysis was stressed. Finally, the emergence of fracture mechanics, as a new branch of applied mechanics, provided analytical tools to investigate crack influence on the dynamic behavior of rotors. The scope of this book is based on all these developments. No topics related to the well-known classical problems are included, rather the book deals exclusively with modern high-power turbomachinery.

Dynamics of Rotors and Foundations

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Publisher : Springer Science & Business Media
ISBN 13 : 3662027984
Total Pages : 378 pages
Book Rating : 4.6/5 (62 download)

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Book Synopsis Dynamics of Rotors and Foundations by : Erwin Krämer

Download or read book Dynamics of Rotors and Foundations written by Erwin Krämer and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rotordynamics are of great importance in the design, manufacture and assembly of turbomachines as well as in ensuring their safe operation. Also important are the dynamics of the foundation and its interaction with the dynamics of the rotor. This book is divided into four parts. Following a presentation of the basic theory the dynamics of rotors supported on several bearings. The third part describes the dynamics of foundations of turbine line-outs and the calculations for a turbomachine coupled with its foundation. The last part includes a section on estimation procedures, a comprehensive presentation of the theoryand practice of rotors having a transverse crack, a section on the mathematical fundamentals and a description of the computer program used for the examples in the book. The book addresses both the practical engineer and the theoretician and should provide manufacturers, operators, university and polytechnic lecturers and students with an understanding of the vibrations of turbomachines. The results are described in such a way that they can be easily understood and applied.

Advances in Rotor Dynamics, Control, and Structural Health Monitoring

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Publisher : Springer Nature
ISBN 13 : 9811556938
Total Pages : 615 pages
Book Rating : 4.8/5 (115 download)

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Book Synopsis Advances in Rotor Dynamics, Control, and Structural Health Monitoring by : Subashisa Dutta

Download or read book Advances in Rotor Dynamics, Control, and Structural Health Monitoring written by Subashisa Dutta and published by Springer Nature. This book was released on 2020-08-29 with total page 615 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book consists of selected and peer-reviewed papers presented at the 13th International Conference on Vibration Problems (ICOVP 2017). The topics covered in this book are broadly related to the fields of structural health monitoring, vibration control and rotor dynamics. In the structural health monitoring section studies on nonlinear dynamic analysis, damage identification, viscoelastic model of concrete, and seismic damage assessment are thoroughly discussed with analytical and numerical techniques. The vibration control part includes topics such as multi-storeyed stacked tuned mass dampers, vibration isolation with elastomeric mounts, and nonlinear active vibration absorber. This book will be useful for beginners, researchers and professionals interested in the field of vibration control, structural health monitoring and rotor dynamics.

Wave-Rotor-Enhanced Gas Turbine Engine Demonstrator

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Author :
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Wave-Rotor-Enhanced Gas Turbine Engine Demonstrator by :

Download or read book Wave-Rotor-Enhanced Gas Turbine Engine Demonstrator written by and published by . This book was released on 1999 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Army Research Laboratory, NASA Glenn Research Center, and Rolls-Royce Allison are working collaboratively to demonstrate the benefits and viability of a wave-rotor-topped gas turbine engine. The self-cooled wave rotor is predicted to increase the engine overall pressure ratio and peak temperature by 300% and 25 to 30%, respectively, providing substantial improvements in engine efficiency and specific power. Such performance improvements would significantly reduce engine emissions and the fuel logistics trails of armed forces. Progress towards a planned demonstration of a wave-rotor-topped Rolls-Royce Allison model 250 engine has included completion of the preliminary design and layout of the engine, the aerodynamic design of the wave rotor component and prediction of its aerodynamic performance characteristics in on- and off-design operation and during transients, and the aerodynamic design of transition ducts between the wave rotor and the high pressure turbine. The topping cycle increases the burner entry temperature and poses a design challenge to be met in the development of the demonstrator engine.

Proceedings of the Society for Experimental Stress Analysis

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Author :
Publisher :
ISBN 13 :
Total Pages : 196 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Proceedings of the Society for Experimental Stress Analysis by : Society for Experimental Stress Analysis

Download or read book Proceedings of the Society for Experimental Stress Analysis written by Society for Experimental Stress Analysis and published by . This book was released on 1962 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vol. 1, no. 1 contains Proceedings of the 17th (or the last) Eastern Photoelasticity Conference.

Proceedings of the 6th National Symposium on Rotor Dynamics

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Author :
Publisher : Springer Nature
ISBN 13 : 9811557012
Total Pages : 591 pages
Book Rating : 4.8/5 (115 download)

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Book Synopsis Proceedings of the 6th National Symposium on Rotor Dynamics by : J. S. Rao

Download or read book Proceedings of the 6th National Symposium on Rotor Dynamics written by J. S. Rao and published by Springer Nature. This book was released on 2020-10-13 with total page 591 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents select papers presented during the 6th National Symposium on Rotor Dynamics, held at CSIR-NAL, Bangalore, and focuses on the latest trends in rotor dynamics and various challenges encountered in the design of rotating machinery. The book is of interest to researchers from mechanical, aerospace, tribology and power industries, engineering service providers and academics.