Download or read book Noise and Vibration of Electrical Machines written by and published by North-Holland. This book was released on 1989 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hardbound. Although the basic theory of the noise of electrical machines was elaborated many years ago, the theoretical knowledge has since been considerably extended. This book discusses the acoustics and noise-measuring systems of electrical machines. It is a fully revised English edition of the authors' book published in Hungarian. A detailed analysis is presented of the electromagnetical, mechanical and aerodynamical vibration and noise sources in electrical machines. A summary of the most recent developments in noise pollution is included, as well as the results of the authors' own observations regarding techniques of reducing the noise level of electrical machines and transformers. The vibro-acoustical measuring-technique of machines is discussed generally, both in the steady-state and transient mode of operation. In addition, the noise of transformers and high voltage transmission lines is examined, and the various practical and theoretical methods"

Download or read book Study of Noise and Vibrations in Electrical Machines written by Jihane Azaoum Zahoum and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The following Project is a brief study and introduction to the presence and effect of unwanted noise and vibration in electrical rotating machines. It provides a general view in the theory and literature existent un until today and also incorporates graphic comparison of how different types of motors emit noise or vibration while working under the same conditions. This project mainly focuses on electromagnetic noise and in terms of frequency and showcasing how differently can a motor act when only changing its working frequency.

Download or read book Vibrations and Audible Noise in Alternating Current Machines written by R. Belmans and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the NATO Advanced Research Workshop on Mechanical Vibrations and Audible Noise in Alternating Current Machines, Leuven, Belgium, August 4-8, 1986

Download or read book NOISE and vibration of electrical machines written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Noise and Vibration of Electrical Machines written by P. L. Timár and published by . This book was released on 1989 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Noise of Polyphase Electric Motors written by Jacek F. Gieras and published by CRC Press. This book was released on 2018-10-03 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Controlling the level of noise in electrical motors is critical to overall system performance. However, predicting noise of an electrical motor is more difficult and less accurate than for other characteristics such as torque-speed. Recent advances have produced powerful computational methods for noise prediction, and Noise of Polyphase Electric Motors is the first book to collect these advances in a single source. It is also the first to include noise prediction for permanent magnet (PM) synchronous motors. Complete coverage of all aspects of electromagnetic, structural, and vibro-acoustic noise makes this a uniquely comprehensive reference. The authors begin with the basic principles of noise generation and radiation, magnetic field and radial forces, torque pulsations, acoustic calculations, as well as noise and vibration of mechanical and acoustic origin. Moving to applications, the book examines in detail stator system vibration analysis including the use of finite element method (FEM) modal analysis; FEM for radial pressure and structural modeling; boundary element methods (BEM) for acoustic radiation; statistical energy analysis (SEA); instrumentation including technologies, procedures, and standards; and both passive and active methods for control of noise and vibration. Noise of Polyphase Electric Motors gathers the fundamental concepts along with all of the analytical, numerical, and statistical methods into a unified reference. It supplies all of the tools necessary to improve the noise performance of electrical motors at the design stage.

Download or read book Noise and Vibration of Electrical Machines written by P. L. Timár and published by . This book was released on 1987 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Noise and Vibration Analysis written by Anders Brandt and published by John Wiley & Sons. This book was released on 2011-03-29 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: Noise and Vibration Analysis is a complete and practical guide that combines both signal processing and modal analysis theory with their practical application in noise and vibration analysis. It provides an invaluable, integrated guide for practicing engineers as well as a suitable introduction for students new to the topic of noise and vibration. Taking a practical learning approach, Brandt includes exercises that allow the content to be developed in an academic course framework or as supplementary material for private and further study. Addresses the theory and application of signal analysis procedures as they are applied in modern instruments and software for noise and vibration analysis Features numerous line diagrams and illustrations Accompanied by a web site at www.wiley.com/go/brandt with numerous MATLAB tools and examples. Noise and Vibration Analysis provides an excellent resource for researchers and engineers from automotive, aerospace, mechanical, or electronics industries who work with experimental or analytical vibration analysis and/or acoustics. It will also appeal to graduate students enrolled in vibration analysis, experimental structural dynamics, or applied signal analysis courses.

Download or read book Noise and Vibration of Electrical Machines written by P. L. Timár and published by . This book was released on 1989 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Noise and Vibrations Analysis of Electrical Machines written by Issah Ibrahim and published by . This book was released on 2022 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Today's electrical machines are finding many applications in new environments where lowernoise levels are demanded, especially in electric vehicles. It is, therefore, imperative thatthe designs must satisfy certain acoustic noise requirements. In the past, experimental electric motors were developed in the early design processto assess their noise performance before full scale production. This approach could bean unpleasant experience for motor designers, as the mitigation solutions often neededsubstantial modification to their prototype models. These prototypes can be very expensive, and forcing in engineering changes to an existing machine can be a nightmare. For thisreason, the use of computer software in noise and vibrations analysis has attracted a lot ofattention in recent years. This thesis uses computer-aided predictive techniques such as the finite element methodto set the background for the computational discussions and exploration of some of theresearch gaps in the literature. It focuses on the interior permanent magnet synchronousmotor due to its extensive application, particularly in the automotive industry. In this work, the effect of non-sinusoidal current waveforms on the acoustic noise field ofthe electric motor drive has been analyzed. It is discovered that sampling the airgap spaceat different instants yields inconsistent electromagnetic force results. Therefore, this thesisproposes an efficient way of extracting the electromagnetic forces in the airgap space toaccount for very critical harmonics that may be ignored in conventional techniques such asthe single-time sampling. It also defines two new acoustic quantities to accurately estimatethe resulting acoustic noise for different switching frequencies of the power electronic circuit. Also, since the thermal behavior of the electric motor is mostly linked to the lossesthat result from the current supply system, the analysis incorporates the role of temperaturein defining the acoustic field of the electric motor by adding an extra model to theexisting subsystem models in the noise calculation process. It reveals that elevating theoperating temperature levels significantly exacerbates the acoustic noise problems of themachine. The thermal excitation modified the electromagnetic, the structural and theacoustic subsystem models. Finally, the thesis addresses the computational burden associated with setting up multiphysicssimulation frameworks for the assessment of acoustic noise. Here, surrogate modelsare introduced as possible replacements of the time-consuming finite element simulations"--

Download or read book Noise Vibration and Harshness of Electric and Hybrid Vehicles written by Lijun Zhang and published by SAE International. This book was released on 2020-12-29 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: The noise, vibration, and harshness (NVH), also known as noise and vibration (N&V), is a critical feature for customers to assess the performance and quality of vehicles. NVH characteristics are higher among factors that customers use to judge the vehicle's quality.This book sets out to introduce the basic concepts, principles, and applications of the NVH development and refi nement of Battery Electric Vehicles (BEV), Hybrid Electric Vehicles (HEV), and Fuel Cell Electric Vehicles. Each type comes with its own set of challenges.

Download or read book Recent Developments of Electrical Drives written by Slawomir Wiak and published by Springer Science & Business Media. This book was released on 2007-06-08 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents papers covering a wide spectrum of theory and practice, deeply rooted in engineering problems at a high practical and theoretical level. The contents explore theory, control systems and applications, the heart of the matter in electrical drives.

Download or read book Recent Major Developments in Cae and Vibrations and Audible Noise Analysis of Rotating Electrical Machines written by R. Belmans and published by Garant Uitgevers N V. This book was released on 1994 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 12th International Conference on Vibrations in Rotating Machinery written by Institute of Mechanical Engineers and published by CRC Press. This book was released on 2020-10-22 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since 1976, the Vibrations in Rotating Machinery conferences have successfully brought industry and academia together to advance state-of-the-art research in dynamics of rotating machinery. 12th International Conference on Vibrations in Rotating Machinery contains contributions presented at the 12th edition of the conference, from industrial and academic experts from different countries. The book discusses the challenges in rotor-dynamics, rub, whirl, instability and more. The topics addressed include: - Active, smart vibration control - Rotor balancing, dynamics, and smart rotors - Bearings and seals - Noise vibration and harshness - Active and passive damping - Applications: wind turbines, steam turbines, gas turbines, compressors - Joints and couplings - Challenging performance boundaries of rotating machines - High power density machines - Electrical machines for aerospace - Management of extreme events - Active machines - Electric supercharging - Blades and bladed assemblies (forced response, flutter, mistuning) - Fault detection and condition monitoring - Rub, whirl and instability - Torsional vibration Providing the latest research and useful guidance, 12th International Conference on Vibrations in Rotating Machinery aims at those from industry or academia that are involved in transport, power, process, medical engineering, manufacturing or construction.

Download or read book Study and optimization of the electromagnetic noise in electrical machines written by Abdel Hadji Amor and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Noise and Vibration Control Engineering written by István L. Vér and published by John Wiley & Sons. This book was released on 2005-11-11 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt: Noise and Vibration Control Engineering: Principles and Applications, Second Edition is the updated revision of the classic reference containing the most important noise control design information in a single volume of manageable size. Specific content updates include completely revised material on noise and vibration standards, updated information on active noise/vibration control, and the applications of these topics to heating, ventilating, and air conditioning.

Download or read book Vibrations and Audible Noise in Alternating Current Machines written by R. Belmans and published by . This book was released on 1988 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: