Flow Induced Pulsation And Vibration In Hydroelectric Machinery

Author : Peter Dörfler,Mirjam Sick,André Coutu
Publisher : Springer Science & Business Media
Page : 257 pages
File Size : 48,9 Mb
Release : 2012-08-28
Category : Technology & Engineering
ISBN : 9781447142522

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Flow-Induced Pulsation and Vibration in Hydroelectric Machinery by Peter Dörfler,Mirjam Sick,André Coutu Pdf

Since the 1970’s, an increasing amount of specialized research has focused on the problems created by instability of internal flow in hydroelectric power plants. However, progress in this field is hampered by the interdisciplinary nature of the subject, between fluid mechanics, structural mechanics and hydraulic transients. Flow-induced Pulsation and Vibration in Hydroelectric Machinery provides a compact guidebook explaining the many different underlying physical mechanisms and their possible effects. Typical phenomena are described to assist in the proper diagnosis of problems and various key strategies for solution are compared and considered with support from practical experience and real-life examples. The link between state-of the-art CFD computation and notorious practical problems is discussed and quantitative data is provided on normal levels of vibration and pulsation so realistic limits can be set for future projects. Current projects are also addressed as the possibilities and limitations of reduced-scale model tests for prediction of prototype performance are explained. Engineers and project planners struggling with the practical problems will find Flow-induced Pulsation and Vibration in Hydroelectric Machinery to be a comprehensive and convenient reference covering key topics and ideas across a range of relevant disciplines.

Author : Eduard Naudascher,Donald Rockwell
Publisher : Courier Corporation
Page : 434 pages
File Size : 46,7 Mb
Release : 2012-03-27
Category : Science
ISBN : 9780486136134

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Flow-Induced Vibrations by Eduard Naudascher,Donald Rockwell Pdf

Despite their variety, the vibration phenomena from many different engineering fields can be classified into a relatively few basic excitation mechanisms. The classification enables engineers to identify all possible sources of excitation in a given system and to assess potential dangers. This graduate-level text presents a synthesis of research results and practical experience from disparate fields in the form of engineering guidelines. It is particularly geared toward assessing the possible sources of excitation in a flow system, in identifying the actual danger spots, and in finding appropriate remedial measures or cures. Flow-induced vibrations are presented in terms of their basic elements: body oscillators, fluid oscillators, and sources of excitation. By stressing these basic elements, the authors provide a basis for the transfer of knowledge from one system to another, as well as from one engineering field to another. In this manner, well-known theories on cylinders in cross-flow or well-executed solutions from the field of wind engineering--to name just two examples--may be useful in other systems or fields on which information is scarce. The unified approach is broad enough to permit treatment of the major excitation mechanism, yet simple enough to be of practical use.

Author : Michel J. Pettigrew,Colette E. Taylor,Nigel J. Fisher
Publisher : John Wiley & Sons
Page : 498 pages
File Size : 53,9 Mb
Release : 2021-12-09
Category : Technology & Engineering
ISBN : 9781119810964

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Flow-Induced Vibration Handbook for Nuclear and Process Equipment by Michel J. Pettigrew,Colette E. Taylor,Nigel J. Fisher Pdf

Explains the mechanisms governing flow-induced vibrations and helps engineers prevent fatigue and fretting-wear damage at the design stage Fatigue or fretting-wear damage in process and plant equipment caused by flow-induced vibration can lead to operational disruptions, lost production, and expensive repairs. Mechanical engineers can help prevent or mitigate these problems during the design phase of high capital cost plants such as nuclear power stations and petroleum refineries by performing thorough flow-induced vibration analysis. Accordingly, it is critical for mechanical engineers to have a firm understanding of the dynamic parameters and the vibration excitation mechanisms that govern flow-induced vibration. Flow-Induced Vibration Handbook for Nuclear and Process Equipment provides the knowledge required to prevent failures due to flow-induced vibration at the design stage. The product of more than 40 years of research and development at the Canadian Nuclear Laboratories, this authoritative reference covers all relevant aspects of flow-induced vibration technology, including vibration failures, flow velocity analysis, vibration excitation mechanisms, fluidelastic instability, periodic wake shedding, acoustic resonance, random turbulence, damping mechanisms, and fretting-wear predictions. Each in-depth chapter contains the latest available lab data, a parametric analysis, design guidelines, sample calculations, and a brief review of modelling and theoretical considerations. Written by a group of leading experts in the field, this comprehensive single-volume resource: Helps readers understand and apply techniques for preventing fatigue and fretting-wear damage due to flow-induced vibration at the design stage Covers components including nuclear reactor internals, nuclear fuels, piping systems, and various types of heat exchangers Features examples of vibration-related failures caused by fatigue or fretting-wear in nuclear and process equipment Includes a detailed overview of state-of-the-art flow-induced vibration technology with an emphasis on two-phase flow-induced vibration Covering all relevant aspects of flow-induced vibration technology, Flow-Induced Vibration Handbook for Nuclear and Process Equipment is required reading for professional mechanical engineers and researchers working in the nuclear, petrochemical, aerospace, and process industries, as well as graduate students in mechanical engineering courses on flow-induced vibration.

Author : Xianghao Zheng,Yuning Zhang,Jinwei Li
Publisher : Springer Nature
Page : 102 pages
File Size : 44,9 Mb
Release : 2022-10-20
Category : Technology & Engineering
ISBN : 9783031180576

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Flow-Induced Instabilities of Reversible Pump Turbines by Xianghao Zheng,Yuning Zhang,Jinwei Li Pdf

This brief provides a comprehensive introduction on the flow-induced instabilities (e.g., the pressure fluctuations and the vibrations) of the reversible pump turbines (RPTs) in the pumped hydro energy storage power stations (PHSEPSs) in China based on long-term field tests. The pressure fluctuations and the vibrations of several RPTs in China under different operational conditions are analysed in detail to reveal their generation mechanisms and propagation characteristics. The book presents advanced signal analysis and processing methods which are used for obtaining the time-frequency information and for finding the internal correlations between several types of signals. Advanced artificial intelligence algorithms are adopted for understanding the effective fault diagnosis and the identification of different flow patterns. The book overviews the fundamentals of the RPTs and the signal analysis methods, while it demonstrates that the analysis results of the pressure fluctuation and vibration data may be employed for the calibration of numerical simulations and the comparisons of model tests. It is primarily targeted to researchers and engineers working on the fields of condition monitoring and fault diagnosis of hydraulic machineries.

Author : M. J. Pettigrew,Colette E. Taylor,Nigel John Fisher
Publisher : Unknown
Page : 0 pages
File Size : 40,8 Mb
Release : 2022
Category : Chemical plants
ISBN : 1523155159

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Flow-induced Vibration Handbook for Nuclear and Process Equipment by M. J. Pettigrew,Colette E. Taylor,Nigel John Fisher Pdf

"Flow-induced vibration is the term for the phenomena of vibration and noise that is caused by fluid flow. Excessive flow-induced vibrations can cause fatigue or failure in process and plant equipment, which can in turn lead to operational disruptions, lost production, and costly repairs. Mechanical engineers can help avoid these issues by performing a flow-induced vibration analysis during the design phase of a project. Industries that employ plants with high capital costs, such as the nuclear, power, petrochemical, and aerospace industries, have a particular interest in understanding and mitigating flow-induced vibrations"--

Author : Eduard Naudascher,Donald Rockwell
Publisher : Springer
Page : 878 pages
File Size : 47,6 Mb
Release : 1980
Category : Fluid dynamics
ISBN : UCSD:31822010592541

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Practical Experiences with Flow-induced Vibrations by Eduard Naudascher,Donald Rockwell Pdf

Author : Robert D. Blevins
Publisher : Van Nostrand Reinhold Company
Page : 474 pages
File Size : 48,6 Mb
Release : 1990
Category : Science
ISBN : UOM:39015017913966

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Flow-induced Vibration by Robert D. Blevins Pdf

First edition, 1977. Provides engineers with theoretical and practical methods for predicting and minimizing structural damage from vibration induced by wind, water, or internal flows. Applications include buildings, bridges, offshore platforms, heat exchangers, power lines, ducts, and aerospace str.

Author : Pankaj Pathak,Rajiv Ranjan Srivastava
Publisher : Springer Nature
Page : 326 pages
File Size : 48,6 Mb
Release : 2021-01-04
Category : Technology & Engineering
ISBN : 9783030579234

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Alternative Energy Resources by Pankaj Pathak,Rajiv Ranjan Srivastava Pdf

This book reviews alternative and renewable energy resources in order to pave the way for a more sustainable production in the future. A multi-disciplinary team of authors provides a comprehensive overview of current technologies and future trends, including solar technologies, wind energy, hydropower, microbial electrochemical systems and various biomass sources for biofuel production. In addition, the book focuses on solutions for developing countries. Conventional energy sources are finite, and estimates suggest that they will be exhausted within a few decades. Finding a solution to this problem is a global challenge, and developing countries in particular are still highly dependent on fossil fuels due to their rapidly growing populations accompanied by a huge growth in primary energy consumption. Moreover, the most common conventional energy sources (coal and petroleum) are non-sustainable since their combustion exponentially increases greenhouse gas emissions. As such, there is a pressing need for clean energy based on alternative or renewable resources, not only to ensure energy supplies at an affordable price but also to protect the environment.

Author : Eduard Naudascher
Publisher : Unknown
Page : 413 pages
File Size : 44,8 Mb
Release : 1994
Category : TECHNOLOGY & ENGINEERING
ISBN : 020375574X

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Flow-induced vibrations by Eduard Naudascher Pdf

Author : Rui Xiong,Hailong Li,Joe (Xuan) Zhou
Publisher : MDPI
Page : 427 pages
File Size : 48,9 Mb
Release : 2018-02-21
Category : Electronic books
ISBN : 9783038425441

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Advanced Energy Storage Technologies and Their Applications (AESA) by Rui Xiong,Hailong Li,Joe (Xuan) Zhou Pdf

This book is a printed edition of the Special Issue "Advanced Energy Storage Technologies and Their Applications (AESA)" that was published in Energies

Author : Olegas Prentkovskis,Irina Yatskiv (Jackiva),Paulius Skačkauskas,Raimundas Junevičius,Pavlo Maruschak
Publisher : Springer Nature
Page : 848 pages
File Size : 52,5 Mb
Release : 2022-01-24
Category : Technology & Engineering
ISBN : 9783030947743

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TRANSBALTICA XII: Transportation Science and Technology by Olegas Prentkovskis,Irina Yatskiv (Jackiva),Paulius Skačkauskas,Raimundas Junevičius,Pavlo Maruschak Pdf

This book reports on innovative research and developments in the broad field of transportation. It covers solutions relating to intelligent vehicles and infrastructure, energy and combustion management, vehicle dynamics and control, as well as research on human factors, logistics and security. Contributions are based on peer-reviewed papers presented at the 12th international scientific conference "Transbaltica: Transportation Science and Technology", held virtually from Vilnius Gediminas Technical University, Lithuania, on September 16-17, 2021. All in all, this book offers extensive information on modern transport systems, with a good balance of theory and practice.

Author : Abdul Ghani Olabi
Publisher : Elsevier
Page : 580 pages
File Size : 52,9 Mb
Release : 2023-04-29
Category : Technology & Engineering
ISBN : 9780323995696

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Renewable Energy - Volume 1: Solar, Wind, and Hydropower by Abdul Ghani Olabi Pdf

Renewable Energy - Volume 1: Solar, Wind, and Hydropower: Definitions, Developments, Applications, Case Studies, and Modelling and Simulation is a comprehensive resource for those wanting an authoritative volume on the significant aspects of these rapidly growing renewable technologies. Providing a structured approach to the emerging technologies and advances in the implementation of solar, wind and hydro energy, the book offers the most requested and desirable practical elements for the renewable industry. Sections cover definitions, applications, modeling and analysis through case study and example. This coordinated approach allows for standalone, accessible, and functioning chapters dedicated to a particular energy source, giving researchers and engineers an important and unique consolidated source of information on all aspects of these state-of-the-art fields. Includes in-depth and up-to-date explanations for the latest developments in Solar, Wind and Hydropower Presents a uniquely, thematically arranged book with structured content that is easily accessible and usable Provides extensively illustrated and supported content, including multimedia components like short videos and slideshows for greater examples and case studies

Author : Dong Wang,Shun-Peng Zhu,Xiancheng Zhang,Gang Chen,José A.F.O. Correia,Guian Qian
Publisher : MDPI
Page : 216 pages
File Size : 51,7 Mb
Release : 2019-11-21
Category : Technology & Engineering
ISBN : 9783039217663

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Structural Prognostics and Health Management in Power & Energy Systems by Dong Wang,Shun-Peng Zhu,Xiancheng Zhang,Gang Chen,José A.F.O. Correia,Guian Qian Pdf

The idea of preparing an Energies Special Issue on “Structural Prognostics and Health Management in Power & Energy Systems” is to compile information on the recent advances in structural prognostics and health management (SPHM). Continued improvements on SPHM have been made possible through advanced signature analysis, performance degradation assessment, as well as accurate modeling of failure mechanisms by introducing advanced mathematical approaches/tools. Through combining deterministic and probabilistic modeling techniques, research on SPHM can provide assurance for new structures at a design stage and ensure construction integrity at a fabrication phase. Specifically, power and energy system failures occur under multiple sources of uncertainty/variability resulting from load variations in usage, material properties, geometry variations within tolerances, and other uncontrolled variations. Thus, advanced methods and applications for theoretical, numerical, and experimental contributions that address these issues on SPHM are desired and expected, which attempt to prevent overdesign and unnecessary inspection and provide tools to enable a balance between safety and economy to be achieved. This Special Issue has attracted submissions from China, USA, Portugal, and Italy. A total of 26 submissions were received and 11 articles finally published.

Author : Wolfgang E. Nagel,Dietmar H. Kröner,Michael M. Resch
Publisher : Springer Nature
Page : 516 pages
File Size : 51,6 Mb
Release : 2023-03-03
Category : Computers
ISBN : 9783031179372

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High Performance Computing in Science and Engineering '21 by Wolfgang E. Nagel,Dietmar H. Kröner,Michael M. Resch Pdf

This book presents the state-of-the-art in supercomputer simulation. It includes the latest findings from leading researchers using systems from the High Performance Computing Center Stuttgart (HLRS) in 2021. The reports cover all fields of computational science and engineering ranging from CFD to computational physics and from chemistry to computer science with a special emphasis on industrially relevant applications. Presenting findings of one of Europe’s leading systems, this volume covers a wide variety of applications that deliver a high level of sustained performance. The book covers the main methods in high-performance computing. Its outstanding results in achieving the best performance for production codes are of particular interest for both scientists and engineers. The book comes with a wealth of color illustrations and tables of results.

Author : Tomomichi Nakamura,Shigehiko Kaneko
Publisher : Elsevier
Page : 311 pages
File Size : 49,8 Mb
Release : 2008-06-17
Category : Science
ISBN : 9780080559131

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Flow Induced Vibrations by Tomomichi Nakamura,Shigehiko Kaneko Pdf

In many plants, vibration and noise problems occur due to fluid flow, which can greatly disrupt smooth plant operations. These flow-related phenomena are called Flow-Induced Vibration.This book explains how and why such vibrations happen and provides hints and tips on how to avoid them in future plant design. The world-leading author team doesn’t assume prior knowledge of mathematical methods and provide the reader with information on the basics of modeling. The book includes several practical examples and thorough explanations of the structure, the evaluation method and the mechanisms to aid understanding of flow induced vibration. Helps ensure smooth plant operations Explains the structure, evaluation method and mechanisms Shows how to avoid vibrations in future plant design