@techreport{MeckingKruseWinteretal.2017, author = {Mecking, Simon and Kruse, Tobias and Winter, Christoph and Schanda, Ulrich}, title = {Teilprojekt 3: Parameterentwicklung und SEA-Modellierung}, series = {ift-Forschungsbericht (Hsg.): Vibroakustik im Planungsprozess f{\"u}r Holzbauten - Modellierung, numerische Simulation, Validierung}, journal = {ift-Forschungsbericht (Hsg.): Vibroakustik im Planungsprozess f{\"u}r Holzbauten - Modellierung, numerische Simulation, Validierung}, year = {2017}, abstract = {Auf Basis empirischer Daten wurde die Diffusit{\"a}t des K{\"o}rperschallfeldes von Brettsperrholz-Bauteilen in realistischer Gr{\"o}ße beschrieben und Verteilungssch{\"a}tzungen in Abh{\"a}ngigkeit der verwendeten Antwortanzahl durchgef{\"u}hrt. Ein n{\"a}herungsweise diffuses K{\"o}rperschallfeld liegt im Beispiel nur in einigen Terzb{\"a}ndern im mittleren Frequenzbereich vor. Damit ist eine Energiebestimmung mit wenigen Antwortpositionen nur dort m{\"o}glich. Die Energiebestimmung {\"u}ber die Schnelle ist bei tiefen Frequenzen f{\"u}r einige Frequenzb{\"a}nder ohne Moden nicht geeignet, da hier die Voraussetzung nicht gegeben ist, dass die kinetische gleich der potenziellen Energie ist. Hochfrequent hat der Krafteinleitungsort bezogen auf die Elementst{\"o}ße Einfluss auf die Antwortstreuungen. Dar{\"u}ber hinaus ist bei tiefen wie auch bei sehr hohen Frequenzen eine hohe Antwortanzahl notwendig.}, language = {de} } @article{PaoliniKollmannsbergerWinteretal.2017, author = {Paolini, Alexander and Kollmannsberger, Stefan and Winter, Christoph and Buchschmid, Martin and M{\"u}ller, Gerhard and Rabold, Andreas and Mecking, Simon and Schanda, Ulrich and Rank, Ernst}, title = {A high-order finite element model for vibration analysis of cross-laminated timber assemblies}, series = {Building Acoustics}, volume = {2017}, journal = {Building Acoustics}, number = {3}, edition = {24}, pages = {135 -- 158}, year = {2017}, abstract = {The vibration behavior of cross-laminated timber components in the low-frequency range can be predicted with high accuracy by the finite element method. However, the modeling of assembled cross-laminated timber components has been studied only scarcely. The three-dimensional p-version of the finite element method, which is characterized by hierarchic high-order shape functions, is well suited to consider coupling and support conditions. Furthermore, a small number of degrees of freedom can be obtained in case of thin-walled structures using p-elements with high aspect ratios and anisotropic ansatz spaces. In this article, a model for cross-laminated timber assemblies made of volumetric high-order finite elements is presented. Two representative types of connections are investigated, one with an elastomer between the cross-laminated timber components and the other without. The model is validated, and suitable ranges for the stiffness parameters of the finite elements which represent the junctions are identified.}, language = {en} } @article{HagedornLoewSeneviratneetal.2019, author = {Hagedorn, Gregor and Loew, Thomas and Seneviratne, Sonia I. and Lucht, Wolfgang and Beck, Marie-Luise and Hesse, Janina and Knutti, Reto and Quaschning, Volker and Schleimer, Jan-Hendrik and Mattauch, Linus and Breyer, Christian and H{\"u}bener, Heike and Kirchengast, Gottfried and Chodura, Alice and Clausen, Jens and Creutzig, Felix and Darbi, Marianne and Daub, Claus-Heinrich and Ekardt, Felix and G{\"o}pel, Maja and Hardt, Judith N. and Hertin, Julia and Hickler, Thomas and K{\"o}hncke, Arnulf and K{\"o}ster, Stephan and Krohmer, Julia and Kromp-Kolb, Helga and Leinfelder, Reinhold and Mederake, Linda and Neuhaus, Michael and Rahmstorf, Stefan and Schmidt, Christine and Schneider, Christoph and Schneider, Gerhard and Seppelt, Ralf and Spindler, Uli and Springmann, Marco and Staab, Katharina and Stocker, Thomas F. and Steininger, Karl and von Hirschhausen, Eckart and Winter, Susanne and Wittau, Martin and Zens, Josef}, title = {The concerns of the young protesters are justified: A statement by Scientists for Future concerning the protests for more climate protection}, series = {GAIA - Ecological Perspectives for Science and Society}, volume = {28}, journal = {GAIA - Ecological Perspectives for Science and Society}, number = {2}, pages = {79 -- 87}, year = {2019}, abstract = {In March 2019, German-speaking scientists and scholars calling themselves Scientists for Future, published a statement in support of the youth protesters in Germany, Austria, and Switzerland (Fridays for Future, Klimastreik/Climate Strike), verifying the scientific evidence that the youth protestors refer to. In this article, they provide the full text of the statement, including the list of supporting facts (in both English and German) as well as an analysis of the results and impacts of the statement. Furthermore, they reflect on the challenges for scientists and scholars who feel a dual responsibility: on the one hand, to remain independent and politically neutral, and, on the other hand, to inform and warn societies of the dangers that lie ahead.}, language = {en} } @techreport{RaboldWohlmuthHorgeretal.2018, author = {Rabold, Andreas and Wohlmuth, Barbara and Horger, Thomas and Rank, Ernst and Kollmannsberger, Stefan and Frischmann, Felix and Paolini, Alexander and Schanda, Ulrich and Mecking, Simon and Kruse, Tobias and Ch{\^a}teauvieux-Hellwig, Camille and Schramm, Markus and M{\"u}ller, Gerhard and Buchschmid, Martin and Winter, Christoph}, title = {Vibroakustik im Planungsprozess f{\"u}r Holzbauten: Modellierung, numerische Simulation, Validierung: Dachbericht zum Forschungsvorhaben}, year = {2018}, language = {de} }