Showing items with similar title or keywords.

• An optimal local active noise control method based on stochastic finite element models 

  Airaksinen, Tuomas; Toivanen, Jari (Elsevier, 2013)

  A new method is presented to obtain a local active noise control that is optimal in stochastic environment. The method uses numerical acoustical modeling that is performed in the frequency domain by using a sequence of ...

• Spectral element method and controllability approach for time-harmonic wave propagation 

  Mönkölä, Sanna (University of Jyväskylä, 2008)

• On different finite element methods for approximating the gradient of the solution to the helmholtz equation 

  Haslinger, Jaroslav; Neittaanmäki, Pekka (North-Holland, 1984)

  We consider the numerical solution of the Helmholtz equation by different finite element methods. In particular, we are interested in finding an efficient method for approximating the gradient of the solution. We first ...

• Local control of sound in stochastic domains based on finite element models 

  Airaksinen, Tuomas; Heikkola, Erkki; Toivanen, Jari (World Scientific Publishing, 2011)

  A numerical method for optimizing the local control of sound in a stochastic domain is developed. A three-dimensional enclosed acoustic space, for example, a cabin with acoustic actuators in given locations is modeled ...

• Comparison between the shifted-Laplacian preconditioning and the controllability methods for computational acoustics 

  Airaksinen, Tuomas; Mönkölä, Sanna (Elsevier, 2010)

  Processes that can be modelled with numerical calculations of acoustic pressure fields include medical and industrial ultrasound, echo sounding, and environmental noise. We present two methods for making these calculations ...