Results 301 to 310 of about 10,191,105 (348)
Some of the next articles are maybe not open access.
The Journal of the Acoustical Society of America, 1991
The invention simulates acoustic emission signals produced by crack growth within a structure so that listening equipment may properly be calibrated to listen for acoustic emission signals from actual structural crack growth. The invention has several embodiments which generate acoustic emission signals from a crack growing in a specimen such that the ...
openaire +1 more source
The invention simulates acoustic emission signals produced by crack growth within a structure so that listening equipment may properly be calibrated to listen for acoustic emission signals from actual structural crack growth. The invention has several embodiments which generate acoustic emission signals from a crack growing in a specimen such that the ...
openaire +1 more source
Accelerated wave-based acoustics simulation
Proceedings of the 2008 ACM symposium on Solid and physical modeling, 2008We present an efficient technique to model sound propagation accurately in an arbitrary 3D scene by numerically integrating the wave equation. We show that by performing an offline modal analysis and using eigenvalues from a refined mesh, we can simulate sound propagation with reduced dispersion on a much coarser mesh, enabling accelerated computation.
Nikunj Raghuvanshi +2 more
openaire +1 more source
Simulating Acoustics of a Room Using MATLAB
2019 22nd International Conference on Control Systems and Computer Science (CSCS), 2019A speech given inside a big room will always be distorted by the undesirable effect of echo. Taking advantage of the linearities of sound reflections, we propose a method for simulating voices affected by reverberation in different rooms. Our approach is based on the Room Impulse Response (RIR) method and our technique reveals an easy and intuitive way
Radu-Andrei Cioaca, Dan Stefanoiu
openaire +1 more source
Matrix method for acoustic levitation simulation
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2011A matrix method is presented for simulating acoustic levitators. A typical acoustic levitator consists of an ultrasonic transducer and a reflector. The matrix method is used to determine the potential for acoustic radiation force that acts on a small sphere in the standing wave field produced by the levitator.
Marco A B, Andrade +3 more
openaire +2 more sources
Diffraction Culling for Virtual-Acoustic Simulations
Acta Acustica united with Acustica, 2008Acoustic simulations of complex virtual environments typically are created with geometrical-acoustics techniques. Such simulations can be augmented with edge diffraction modeling for improved accuracy, but not without a significant increase in processing time due to the additional propagation paths which must be considered and the computational ...
Paul Calamia +2 more
openaire +1 more source
Simulation of acoustic fields of synphase electromagnetic-acoustic transducers
Russian Journal of Nondestructive Testing, 2013A model of the formation of acoustic fields of a synphase EMA transducer of longitudinal and transverse waves in the form of a phased array of elements with a current is proposed. This model takes several parameters into account, such as the number and dimensions of individual elements of the array and its aperture, the operating frequency, and the gap
O. V. Murav’eva, A. V. Myshkin
openaire +1 more source
Numerical Simulation of 3D Acoustic Logging
2007A Finite-difference method for simulation of sonic waves propagating in a vicinity of a borehole filled with fluid and surrounded by a 3D heterogeneous elastic medium is developed. The method utilizes an explicit second order of approximation FD scheme on staggered grids that approximates the elastodynamic system of equations in cylindrical coordinates.
Victor I. Kostin +3 more
openaire +2 more sources
Simulation of acoustical parameters of churches in a virtual acoustics laboratory
The Journal of the Acoustical Society of AmericaCurrent ISO standards for acoustical assessment limit the use of traditional mono-dimensional microphones for measuring equipment. However, microphone arrays offer more accurate spatial information compared to traditional microphones. This presents an opportunity to enhance research on architectural acoustics and preserve the acoustics of cultural ...
Gianluca Grazioli, Andrea Gozzi
openaire +1 more source
Survey for the Underwater Acoustic Channel Simulation
2023 14th International Conference on Information and Communication Technology Convergence (ICTC), 2023Hyowon Lee 0004, Namyoon Lee
openaire +2 more sources
OFDM Simulator for Underwater Acoustic Communications
2023 14th International Conference on Information and Communication Technology Convergence (ICTC), 2023Seyong Kim +3 more
openaire +1 more source