{"id":30213,"date":"2020-08-21T12:54:27","date_gmt":"2020-08-21T12:54:27","guid":{"rendered":"http:\/\/tugraztestweb.asol.at\/gesamtverzeichnis\/unkategorisiert\/simulation-of-sound-transmission-through-poroelastic-plate-like-structures-2\/"},"modified":"2020-08-21T14:55:27","modified_gmt":"2020-08-21T12:55:27","slug":"simulation-of-sound-transmission-through-poroelastic-plate-like-structures-ebook","status":"publish","type":"product","link":"https:\/\/tugraztestweb.asol.at\/en\/gesamtverzeichnis\/bauingenieurwissenschaften\/simulation-of-sound-transmission-through-poroelastic-plate-like-structures-ebook\/","title":{"rendered":"Simulation of Sound Transmission through Poroelastic Plate-like Structures"},"content":{"rendered":"

Sorry, this entry is only available in Deutsch<\/a>.<\/p>

The experimental determination of the sound-absorbing properties of
\nporoelastic panels or room-separating walls is known to be both
\nexpensive and time-consuming. That is why it seems beneficial to replace
\n such experiments by adequate computer simulations. Since such panels or
\n walls usually feature a plate-like geometry, a two-dimensional model is
\n preferred over a three-dimensional one. The goal of this step is to
\nincrease the efficiency of the computation due to the eliminated need of
\n discretizing the structure over its thickness. The development of a
\ntwo-dimensional formulation relies on a proper integration over the
\nthickness. In contrast to classical plate theories in which this
\nintegration is enabled by the introduction of some kinematical
\nassumptions, the approach chosen in this work consists in replacing all
\nquantities by power series in thickness direction and truncating them
\naccording to the needed level of accuracy. In this way, the requirement
\nof formulating a priori assumptions regarding the systems response in
\nthickness direction is bypassed. This method is shown to adequately
\naproximate the much costlier three-dimensional model. Also, the coupling
\n of the two-dimensional model with a surrounding fluid is developed and
\nresults are presented.<\/p>","protected":false},"excerpt":{"rendered":"

Sorry, this entry is only available in Deutsch<\/a>.<\/p>\n

The experimental determination of the sound-absorbing properties of
\nporoelastic panels or room-separating walls is known to be both
\nexpensive and time-consuming. That is why it seems beneficial to replace
\n such experiments by adequate computer simulations. Since such panels or
\n walls usually feature a plate-like geometry, a two-dimensional model is
\n preferred over a three-dimensional one. The goal of this step is to
\nincrease the efficiency of the computation due to the eliminated need of
\n discretizing the structure over its thickness. The development of a
\ntwo-dimensional formulation relies on a proper integration over the
\nthickness. In contrast to classical plate theories in which this
\nintegration is enabled by the introduction of some kinematical
\nassumptions, the approach chosen in this work consists in replacing all
\nquantities by power series in thickness direction and truncating them
\naccording to the needed level of accuracy. In this way, the requirement
\nof formulating a priori assumptions regarding the systems response in
\nthickness direction is bypassed. This method is shown to adequately
\naproximate the much costlier three-dimensional model. Also, the coupling
\n of the two-dimensional model with a surrounding fluid is developed and
\nresults are presented.<\/p>\n","protected":false},"featured_media":39829,"comment_status":"open","ping_status":"closed","template":"","meta":[],"yoast_head":"\n\n\n\n\n\n\n\n\n\n\t\n\t\n\n\n\t\n