Optimization Of Acoustic Source Strength In The Problems Of Active Noise Control
DOWNLOAD
Download Optimization Of Acoustic Source Strength In The Problems Of Active Noise Control PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Optimization Of Acoustic Source Strength In The Problems Of Active Noise Control book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Optimization Of Acoustic Source Strength In The Problems Of Active Noise Control
DOWNLOAD
Author : Josip Lončarić
language : en
Publisher:
Release Date : 2002
Optimization Of Acoustic Source Strength In The Problems Of Active Noise Control written by Josip Lončarić and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Noise control categories.
We consider a problem of eliminating the unwanted time-harmonic noise on a predetermined region of interest. The desired objective is achieved by active means, i.e., by introducing additional sources of sound called control sources, that generate the appropriate annihilating acoustic signal (anti-sound). A general solution for the control sources has been obtained previously in both continuous and discrete formulation of the problem. In the current paper, we focus on optimizing the overall absolute acoustic source strength of the control sources. Mathematically, this amounts to the minimization of multi-variable complex-valued functions in the sense of L1 with conical constraints, which are only 'marginally' convex. The corresponding numerical optimization problem appears very challenging even for the most sophisticated state-of-the-art methodologies, and even when the dimension of the grid is small, and the waves are long. Our central result is that the global L1-optimal solution can, in fact, be obtained without solving the numerical optimization problem. This solution is given by a special layer of monopole sources on the perimeter of the protected region. We provide a rigorous proof of the global L1 minimality for both continuous and discrete optimization problems in the one-dimensional case. We also provide numerical evidence that corroborates our result in the two-dimensional case, when the protected domain is a cylinder. Even though we cannot fully justify it, we believe that the same result holds in the general case, i.e., for multi-dimensional settings and domains of arbitrary shape. We formulate it as a conjecture at the end of the paper.
Quadratic Optimization In The Problems Of Active Control Of Sound
DOWNLOAD
Author : Josip Lončarić
language : en
Publisher: DIANE Publishing
Release Date : 2002
Quadratic Optimization In The Problems Of Active Control Of Sound written by Josip Lončarić and has been published by DIANE Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.
Computational Science And Its Applications Iccsa 2003
DOWNLOAD
Author : Vipin Kumar
language : en
Publisher: Springer
Release Date : 2003-08-03
Computational Science And Its Applications Iccsa 2003 written by Vipin Kumar and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-08-03 with Computers categories.
The three-volume set, LNCS 2667, LNCS 2668, and LNCS 2669, constitutes the refereed proceedings of the International Conference on Computational Science and Its Applications, ICCSA 2003, held in Montreal, Canada, in May 2003.The three volumes present more than 300 papers and span the whole range of computational science from foundational issues in computer science and mathematics to advanced applications in virtually all sciences making use of computational techniques. The proceedings give a unique account of recent results in computational science.
Advances In Inverse Problems For Partial Differential Equations
DOWNLOAD
Author : Dinh-Liem Nguyen
language : en
Publisher: American Mathematical Society
Release Date : 2023-04-12
Advances In Inverse Problems For Partial Differential Equations written by Dinh-Liem Nguyen and has been published by American Mathematical Society this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-04-12 with Mathematics categories.
This volume contains the proceedings of two AMS Special Sessions “Recent Developments on Analysis and Computation for Inverse Problems for PDEs,” virtually held on March 13–14, 2021, and “Recent Advances in Inverse Problems for Partial Differential Equations,” virtually held on October 23–24, 2021. The papers in this volume focus on new results on numerical methods for various inverse problems arising in electrical impedance tomography, inverse scattering in radar and optics problems, reconstruction of initial conditions, control of acoustic fields, and stock price forecasting. The authors studied iterative and non-iterative approaches such as optimization-based, globally convergent, sampling, and machine learning-based methods. The volume provides an interesting source on advances in computational inverse problems for partial differential equations.
Applied Mechanics Reviews
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1948
Applied Mechanics Reviews written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1948 with Mechanics, Applied categories.
Occupational Noise And Workplace Acoustics
DOWNLOAD
Author : Dariusz Pleban
language : en
Publisher: CRC Press
Release Date : 2020-09-02
Occupational Noise And Workplace Acoustics written by Dariusz Pleban and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-09-02 with Technology & Engineering categories.
Modern noise research and assessment techniques are commonly used in the workplace and our personal living environment. Occupational Noise and Workplace Acoustics presents new, innovative, advanced research and evaluation methods of parameters characterizing acoustic field and noise in the working environment, as well as acoustic properties of rooms and noise reduction measures. This includes acoustic field visualization methods, field imaging techniques, wireless sensor networks, and the Internet of Things (IoT); optimization methods using genetic algorithms; acoustic quality assessment methods for rooms; and methods for measuring ultrasonic noise in the frequency range of 10-40 kHz. This book is a valuable resource for individuals and students interested in the areas of acoustic and sound engineering as it provides: The latest techniques and methods in the field of noise reduction and improvement of acoustic comfort, Innovative and advanced acoustic field visualization techniques for those with an auditory impairment, Explains noise reduction through proper workplace design, Discusses use of wireless sensor networks and the IoT for monitoring noise, and Provides acoustic quality assessment methods. "The authors’ intention to expound on advanced issues in a lucid and accessible way was rewarded with success. In the book, an expert will find a number of hints helpful in solving actual problems, whereas a layperson will be able to form a view on challenges facing contemporary technology. What should also be emphasized is the book’s soundness in documenting these advanced theses and postulates with diligently conducted empirical research. Despite a wide thematic range, the book is written consistently and under no circumstances can be considered a collection of randomly selected problems. The content corresponds fully to the title. The authors are consistent in acquainting the reader with topical scientific issues concerning assessment of acoustic hazards and the methodology of combating them." —Professor Zbigniew Dąbrowski, BEng, PhD, DSc, Warsaw University of Technology
Numerical Analysis And Applied Mathematics
DOWNLOAD
Author : Theodore E. Simos
language : en
Publisher: American Institute of Physics
Release Date : 2007-09-14
Numerical Analysis And Applied Mathematics written by Theodore E. Simos and has been published by American Institute of Physics this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-09-14 with Computers categories.
This volume contains peer-reviewed papers presented at the International Conference on Numerical Analysis and Applied Mathematics 2007, ICNAAM-2007. This conference brought together leading scientists of the international Numerical and Applied Mathematics community. More than 350 papers were submitted to be considered for presentation at ICNAAM-2007. From these submissions, 189 papers were selected after an international peer review by at least two independent reviewers.
Modeling And Simulation Techniques In Structural Engineering
DOWNLOAD
Author : Samui, Pijush
language : en
Publisher: IGI Global
Release Date : 2016-08-12
Modeling And Simulation Techniques In Structural Engineering written by Samui, Pijush and has been published by IGI Global this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-08-12 with Technology & Engineering categories.
The development of new and effective analytical and numerical models is essential to understanding the performance of a variety of structures. As computational methods continue to advance, so too do their applications in structural performance modeling and analysis. Modeling and Simulation Techniques in Structural Engineering presents emerging research on computational techniques and applications within the field of structural engineering. This timely publication features practical applications as well as new research insights and is ideally designed for use by engineers, IT professionals, researchers, and graduate-level students.
Proceedings Of The International Congress On Acoustics
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1995
Proceedings Of The International Congress On Acoustics written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Acoustical engineering categories.
Computational Methods In Engineering Advances Applications Proceedings Of The International Conference In 2 Volumes
DOWNLOAD
Author : Khin-yong Lam
language : en
Publisher: World Scientific
Release Date : 1992-10-29
Computational Methods In Engineering Advances Applications Proceedings Of The International Conference In 2 Volumes written by Khin-yong Lam and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992-10-29 with categories.