Download or read book Active Noise Control of Acoustic Enclosures Using an Approximate Constant Volume Velocity Source written by Steven A. Lane and published by . This book was released on 1999 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Active Control of Noise and Vibration written by Colin Hansen and published by CRC Press. This book was released on 1996-11-21 with total page 1292 pages. Available in PDF, EPUB and Kindle. Book excerpt: This major work is the first to treat the active control of both sound and vibration in a unified way. It outlines the fundamental concepts, explains how a reliable and stable system can be designed and implemented, and details the pitfalls . It covers sound in ducts, sound radiation, sound transmission into enclosures, structural vibration and isolation, electronic control system design, and sensors and actuators.
Download or read book Analytical Study of Acoustic Response of a Semireverberant Enclosure with Application to Active Noise Control written by Tony L. Parrott and published by . This book was released on 1985 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analytical Study of Acoustic Response of a Semireverberant Enclosure with Application to Active Noise Control written by and published by . This book was released on 1985 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering Noise Control written by David A. Bies and published by CRC Press. This book was released on 2003-07-31 with total page 745 pages. Available in PDF, EPUB and Kindle. Book excerpt: The third edition of Engineering Noise Control has been thoroughly revised, updated and extended. Each chapter contains new material, much of which is not available elsewhere. The result is a comprehensive discussion of the theoretical principles and concepts of acoustics and noise control, a detailed discussion of the hearing mechanism, noise measuring instrumentation and techniques, noise criteria, sound source characterization and emission, outdoor sound propagation, sound in rooms, sound transmission through partitions, enclosure design, dissipative and reactive mufflers, vibration isolation, equipment sound power emission calculations and active noise cancellation. The book is an excellent text for advanced undergraduate or graduate students of acoustic and noise control, and it also contains essential information and prediction techniques that make it an invaluable resource for the practitioner.
Download or read book Proceedings of the American Control Conference written by and published by . This book was released on 1998 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Active Noise Control written by Giora Rosenhouse and published by Witpress. This book was released on 2001 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book will give a physical insight into the modern field of active sound and vibration control. It will present the latest technology and achievements. The approach is generally design orientated and has a viewpoint different to other publications.
Download or read book Active Feedback Control of Acoustic Noise in 3 D Enclosures written by Feng Liu and published by . This book was released on 2002 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Active Noise Control (ANC) strategies using feedback control methods are investigated for reducing acoustic noise in 3-D enclosures. It has been shown that robust control design techniques are effective in broadband control of noise especially in low frequency range. The work presented includes modeling, system identification, controller design, and experimental validation of different active control methodologies. The finite dimensional approximate models were obtained using both analytical as well as system identification-based methods. The analytical model was derived using basic 3-D wave equation and assumed modes method. The system identification-based model was derived using ERA-based system-id toolbox (SOCIT). The controller designs presented include LQG, passivity-based, and an H-infinity designs. The LQG design which used the state-weighting matrix derived directly from the energy function of the enclosure performed very effectively. The passivity-based controllers gave the most satisfactory closed-loop performance. These controllers are based on energy-extraction principle, and therefore, are the most desirable candidates for ANC systems. These controllers have excellent stability robustness properties as well. With high modal density and resonant peaks in the frequency response the design of H-infinity controllers becomes very difficult. For single and multi-tone cases, both LQG as well as passivity-based controllers gave significantly large noise reductions. For broadband white noise disturbance the noise reduction up to 6 dB was obtained without destabilization.
Download or read book Journal of the Audio Engineering Society written by Audio Engineering Society and published by . This book was released on 1998 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Directory of members" published as pt. 2 of Apr. 1954- issue.
Download or read book Active Noise Control Primer written by Scott D. Snyder and published by Springer Science & Business Media. This book was released on 2012-09-25 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: By providing all the basic knowledge needed to assess how useful active noise control will be for a given problem, this book assists in the designing, setting up, and tuning of an active noise-control system. Written for students who have no prior knowledge of acoustics, signal processing, or noise control but who do have a reasonable grasp of basic physics and mathematics, the text is short and descriptive, leaving all mathematical details and proofs concerning vibrations, signal processing and the like to more advanced texts or research monographs. The book can thus be used in independent study, in a classroom with laboratories, or in conjunction with a kit for experiment or demonstration. Topics covered include basic acoustics, human perception and sound, sound intensity and related concepts, fundamentals of passive noise- control strategies, basics of digital systems and adaptive controllers, and active noise control systems.
Download or read book Solutions to Example Problems in Engineering Noise Control written by Colin H. Hansen and published by Causal Systems. This book was released on 2003 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the solution manual for Problems in Engineering Noise Control by the same author. The solutions are very detailed and comprehensive and extend a number of concepts with approximately 270 problems which have a total of 650 separate parts.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1999 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optimization of Acoustic Source Strength in the Problems of Active Noise Control written by Josip Lončarić and published by . This book was released on 2002 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Active Noise Control written by M. O. Tokhi and published by Oxford University Press, USA. This book was released on 1992 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: In active noise control an artificially-generated secondary acoustic field is used to interfere destructively with the unwanted sound field. This book deals with the control engineering of generating this secondary field. This technique has uses in suppressing machinery noise in particular.
Download or read book Applied mechanics reviews written by and published by . This book was released on 1948 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1998 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Noise Control written by Colin Hansen and published by CRC Press. This book was released on 2005-10-19 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: An excellent learning tool for students and practitioners, this guide to noise control will enable readers to use their knowledge to solve a wide range of industrial noise control problems. Working from basic scientific principles, the author shows how an understanding of sound can be applied to real-world settings, working through several examples in detail and covering good practice in noise control for both new and existing facilities.
