TITLE

Stationary and Nonstationary Problems of Active Shielding

AUTHOR(S)
Utyuzhnikov, S. V.
PUB. DATE
December 2007
SOURCE
International Journal of Applied Mathematics;2007, Vol. 37 Issue 2, p127
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The problem of active shielding of some domains from the effect of the sources distributed in other domains is considered. The problem can be formulated either in a bounded domain or in an unbounded domain. The active shielding is realized via the implementation of additional sources in such a way that the total contribution of all sources leads to the desirable effect. Mathematically the problem is reduced to the search of the source terms satisfying some a priori described requirements to the solution and belongs to the class of inverse source problems. From the application standpoint, this problem can closely be related to the active shielding of noise, active vibration control and active scattering. It is important to note that along with undesirable field (noise) to be shielded the presence of a desirable component is accepted in the analysis. The solution of the problem requires only the knowledge of the total field on the perimeter of the shielded domain. This is the first publication where the solution of the problem is proved in general nonstationary linear and stationary nonlinear formulations. The examples of acoustic and Maxwell equations are considered.
ACCESSION #
28743060

 

Related Articles

  • CALENDAR.  // Noise & Vibration Bulletin;Apr2008, p109 

    A calendar of events related to noise and vibration from June to December 2008 is presented which includes the "5th International Styrian Noise, Vibration & Harshness Congress (ISNVH)" in Austria, "8th International Conference on Vibration Measurements by Laser Techniques" in Ancona, Italy and...

  • Section 11: 217-218 Positioning & Support Equipment.  // Laser Focus World;2011 Buyer's Guide, p217 

    The article lists global suppliers of positioning and support equipment including autofocus systems, actuators, and active vibration control systems.

  • THE EFFECTS OF VEGETATION ON REDUCING TRAFFIC NOISE FROM A CITY RING ROAD. Samara, T.; Tsitsoni, T. // Noise & Vibration Bulletin;Mar2012, p72 

    The article reports on a study which investigates the reduction of road noise by vegetation and belt of trees along the ring road of Thessaloniki, Greece.

  • Active vibration control of a space truss using a lead zirconate titanate stack actuator. Song, G; Vlattas, J; Johnson, S E; Agrawal, B N // Proceedings of the Institution of Mechanical Engineers -- Part G;2001, Vol. 215 Issue 6, p355 

    This paper presents design, implementation and experimental results of active vibration control of Naval Postgraduate School (NPS) space truss using a piezoelectric ceramic stack actuator. The NPS space truss represents a flexible spacecraft structure that may support interferometer, antenna and...

  • Intelligent Audio, Speech, and Music Processing Applications. Gan, Woon S.; Kuo, Sen M.; Hansen, John H. L. // EURASIP Journal on Audio Speech & Music Processing;2008, Vol. 2008, Special section p1 

    The article discusses various reports published within the issue, including one by Fu-Kun Chen and colleagues on the representation of narrowband active noise control systems, one by Qiang Wu and colleagues on the auditory sparse representation of tensor structure-based robust speaker...

  • Flightcom Corp. has announced a new.  // Business & Commercial Aviation;Jun2002, Vol. 90 Issue 6, p33 

    Features Denali Active Noise Reduction headset from Flightcom Corp. Power consumption of the battery box; Specification of the mic and headphone plugs.

  • RECOMMENDED NOISE LEVEL DESIGN GOALS AND LIMITS AT RESIDENTIAL RECEPTORS FOR WIND TURBINE DEVELOPMENTS IN THE UNITED STATES. Hessler, D.; Hessler, G. // Noise & Vibration Bulletin;Mar2012, p73 

    The article discusses the suggested noise level design goals and regulatory limits at residential receptors for new wind turbine development projects in the U.S.

  • MOTORCYCLE HELMET NOISE AND ACTIVE NOISE REDUCTION. Brown, C.; Gordon, M. // Noise & Vibration Bulletin;Jul2012, p180 

    An abstract of the article "Motorcycle helmet noise and active noise reduction," by C. Brown and M. Gordon, is presented.

  • AN INNOVATIVE MULTI DOF TMD SYSTEM FOR MOTORCYCLE HANDLEBARS DESIGNED TO REDUCE STRUCTURAL VIBRATIONS AND HUMAN EXPOSURE. Agostoni, S. // Noise & Vibration Bulletin;Jul2012, p188 

    An abstract of the article "An innovative multi dof of TMD system for motorcycle handlebars designed to reduce structural vibrations and human exposure," by S. Agostoni and colleagues, is presented.

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics