@inproceedings{RaboldDuesterRank2007, author = {Rabold, Andreas and D{\"u}ster, A. and Rank, E.}, title = {Anwendung der Finiten Elemente Methode auf die Trittschallberechnung von Holzdecken}, series = {DAGA Tagungsband}, booktitle = {DAGA Tagungsband}, year = {2007}, abstract = {Die Optimierung der tieffrequenten Trittschalld{\"a}mmung von Holzdecken kann durch Berechnungen mit der finiten Elemente Methode (FEM) effektiv gestaltet werden. Die mit der FEM berechneten Ei genwerte und Eigenmoden des Bauteils bilden hierbei die Basis, um durch die Modalanalyse R{\"u}ck schl{\"u}sse f{\"u}r die Bauteiloptim ierung ziehen zu k{\"o}nnen. In diesem Beitrag wird die im Rahmen eines aktuellen Gemeinschaft sprojektes mit dem ibp Stuttgart und dem ift Rosenheim erfolgte Anwendung der FEM zur Berechnung der Trittschalld{\"a}mmung im {\"U}berblick vorgestellt und auf die Modellierung der Anregungskraft detaillierter eingegangen.}, language = {de} } @inproceedings{RaboldDuester2008, author = {Rabold, Andreas and D{\"u}ster, A.}, title = {FEM based prediction model for the impact sound level of floors}, series = {EURONOISE 2008- Conference Proceedings}, booktitle = {EURONOISE 2008- Conference Proceedings}, year = {2008}, abstract = {Up to now the research and developmen t in the field of building acoustics is based mainly on measurements. The consequence is that the development and optimization of a new building component is a very tedious and expensive task. A considerably reduction of these costs could be achieved, if the optimization relying on measurements would be replaced - at least to some extent - by a computational prediction model. Motivated by these aspects a method is presented for using finite element techniques to estimate the impact sound level from lightweight floors. The overall approach consists of the three-dimensional modeling of the structure and the excitation source (tapping machine), the subsequent moda l- and spectral analyses an d the computation of the radiated sound from the ceiling.}, language = {en} } @inproceedings{RaboldDuesterHessingeretal.2009, author = {Rabold, Andreas and D{\"u}ster, A. and Hessinger, J. and Rank, E.}, title = {Optimization of lightweight floors in the low frequency range with a FEM based prediction model}, series = {DAGA Tagungsband}, booktitle = {DAGA Tagungsband}, year = {2009}, abstract = {The impact noise transmission at low frequencies is a well known problem of lightweight floors, which is treated in many publications. A satisfying solution, considering the different construction principles of lightweight floors, could not be found so far. To overcome this problem a FEM based prediction model for the optimization of the floor construction and the improvement of the impact sound insulation has been developed and applied in a current research project at th e TU M{\"u}nchen. The details of the prediction model were published in [1]-[3]. This contribution gives an overview of the prediction model and shows the results of the computations and the construction rules developed for optimized lightweight floors.}, language = {en} } @article{RaboldBuchschmiedDusteretal.2010, author = {Rabold, Andreas and Buchschmied, M. and Duster, A. and M{\"u}ller, G. and Rank, E.}, title = {Modelling the excitation force of a standard tapping machine on lightweight floor structures}, series = {Journal of building acustics}, journal = {Journal of building acustics}, year = {2010}, abstract = {Up to now the research and development in the field of building acoustics is based mainly on measurements. In consequence the development and optimization of a new building component is a very tedious and expensive task. A considerable reduction of these costs could be achieved, if the optimization relying on measurements would be replaced - at least to some extent - by a computational prediction model. For these models it is necessary to represent not only the component and the adjacent rooms but also the excitation in a suitable way. This paper gives an overview of models for the excitation generated by a standard tapping machine taking into account the interaction between the impacting steel cylinders of the tapping machine and the vibrating surface of the floor.}, language = {en} }