Learn all about sound and noise, types of microphone transducers, and measurement devices used to measure sound level, pressure, power, and intensity.
One can clearly see the opening of the complete acoustic bandgap predicted by the tight- binding approach, in agreement with the full-wave numerical results shown in the main text (Fig. 1e,f). Note that by virtue of Floquet theorem, this band structure is periodic along the quasi-frequency...
predict small scale size effect of macro/nanostructures. For example, Liu et al.61discussed the influence of NSGT on nonlinear dynamic of FG multilayer beam-type nanostructures reinforced by graphene nanoplatelet considering the initial geometric imperfection. Based on the NSGT in conjunction with FSDT,...
Mathematical Problems in EngineeringL. Godinho, P. Amado-Mendes and A. Pereira, A hybrid analytical-numerical model based on the method of fundamental solutions for the analysis of sound scattering by buried shell structures, Mathematical Problems in Engineering, vol.2011, pp.1-22, 2011....
We first conduct the 6th-order scheme on a uniform mesh with 6 cells. The perturbations for density at t = 0.01 s, 0.1 s and 1 s are given in Fig. 5. We see a good agreement between the numerical and analytical solution at t = 0.01 s and 0.1 s. Slightly deviation appears after ...
9. The method of claim 8, wherein electronic device movement is detected by an acceleration sensor. 10. An electronic device, comprising: a communication unit for establishing communication with a external device to activate sound input and output units of the sound processing device and deactivat...
Methods and system for predicting sound pressure and/or sound pressure level caused by a vehicle horn are provided. An acoustic model of the horn is generated through the use of inverse numerical acou
Pieren’s model [30] is used to predict the acoustic behavior of the thin membranes. In Section 3, the numerical model based on finite elements is introduced to validate the theoretical model and the experimental results. The perforated foam fabrication and the experimental setup using the ...
In former studies, the Biot model had been employed directly within this parameter identification schema [26], using an in-house finite-element code capable of using Biot’s model for numerical computations [64]. Nevertheless, numerical experiments have shown that the skeleton’s elasticity of the...
Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Class 7, Class 8, Class 9, Class 10, Class 11 and Class 12, IIT JEE prep, NEET preparation and CBSE, UP Board, Bihar Board, Rajasthan Board, MP Board, Telangana Board etc NCERT solutions for...