Search for dissertations about: "Andrzej Pietrzyk"

Found 2 swedish dissertations containing the words Andrzej Pietrzyk.

2. 1. Numerical modelling of low frequency air-borne sound transmission through building partitions

   Author : Andrzej Pietrzyk; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Abstract : .... READ MORE

4. 2. Sound Insulation at Low Frequencies

   Author : Andrzej Pietrzyk; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Finite Element Method; numerical simulations; Modal Approach; sound insulation; sound reduction index; low frequency; building partitions;

   Abstract : The airborne sound transmission through building partitions at low frequencies was studied. The definition of the sound reduction index as a measure of sound insulation has been examined by means of extensive numerical simulations in 3-D domains. The simulations were based on the wave theoretical acoustics. READ MORE