@article{WeberHuberBorchseniusetal.2020, author = {Weber, Felix and Huber, Peter and Borchsenius, Fredrik and Braun, Christian}, title = {Performance of TMDI for Tall Building Damping}, series = {Actuators}, volume = {9}, journal = {Actuators}, number = {4}, publisher = {MPDI}, doi = {10.3390/act9040139}, pages = {1 -- 13}, year = {2020}, abstract = {This study investigates the vibration reduction of tall wind-excited buildings using a tuned mass damper (TMD) with an inerter (TMDI). The performance of the TMDI is computed as a function of the floor to which the inerter is grounded as this parameter strongly influences the vibration reduction of the building and for the case when the inerter is grounded to the earth whereby the absolute acceleration of the corresponding inerter terminal is zero. Simulations are made for broadband and harmonic excitations of the first three bending modes, and the conventional TMD is used as a benchmark. It is found that the inerter performs best when grounded to the earth because, then, the inerter force is in proportion to the absolute acceleration of only the pendulum mass, but not to the relative acceleration of the two inerter terminals, which is demonstrated by the mass matrix. However, if the inerter is grounded to a floor below the pendulum mass, the TMDI only outperforms the TMD if the inerter is grounded to a floor within approximately the first third of the building's height. For the most realistic case, where the inerter is grounded to a floor in the vicinity of the pendulum mass, the TMDI performs far worse than the classical TMD.}, language = {en} } @article{WeberBorchseniusDistletal., author = {Weber, Felix and Borchsenius, Fredrik and Distl, Johann and Braun, Christian}, title = {Performance of Numerically Optimized Tuned Mass Damper with Inerter (TMDI)}, series = {Applied Sciences}, volume = {12}, journal = {Applied Sciences}, number = {12}, publisher = {MDPI}, address = {Basel}, doi = {10.3390/app12126204}, pages = {1 -- 15}, abstract = {In recent years, the Tuned Mass Damper with inerter (TMDI) has received significant attention. The inerter is defined to exert a force that is in proportion to the relative acceleration of the two inerter terminals. Here, two TMDI topologies are investigated. The conventional topology is given by the inerter being in parallel to the spring and viscous damper of the TMDI. The other topology is the serial arrangement of spring, inerter and viscous damper being in parallel to the stiffness of the mass spring oscillator of the TMDI. While the first topology intends to increase the inertial force of the TMDI, the second topology aims at producing an additional degree of freedom. The considered TMDI concepts are simulated for harmonic and random excitations, with parameters set according to those described in the literature and with numerically optimized parameters which minimize the primary structure displacement response. The classical TMD is used as a benchmark. The findings are twofold. The conventional TMDI with typical inertance ratio of 1\% and the very small value of 0.02\% performs significantly worse than the classical TMD with the same mass ratio. In contrast, the TMDI with an additional degree of freedom can improve the mitigation of the primary structure if the inertance ratio is set very small and if the TMDI parameters are numerically optimized.}, language = {en} } @techreport{VoigtRadloffStemmerKorporaletal., type = {Working Paper}, author = {Voigt-Radloff, Sebastian and Stemmer, Renate and Korporal, Johannes and Horbach, Annegret and Ayerle, Gertrud M. and Sch{\"a}fers, Rainhild and Greening, Monika and Binnig, Marlis and Mattern, Elke and Heldmann, Patrick and Wasner, Mieke and Braun, Cordula and Lohkamp, Monika and Marotzki, Ulrike and Kraus, Elke and Oltman, Ren{\´e}e and M{\"u}ller, Christian and Corsten, Sabine and Lauer, Norina and Schade, Veronika and Kempf, Sabrina}, title = {Forschung zu komplexen Interventionen in der Pflege- und Hebammenwissenschaft und in den Wissenschaften der Physiotherapie, Ergotherapie und Logop{\"a}die}, doi = {10.6094/UNIFR/10702}, language = {de} } @techreport{VoigtRadloffStemmerBehrensetal., author = {Voigt-Radloff, Sebastian and Stemmer, Renate and Behrens, Johann and Horbach, Annegret and Ayerle, Gertrud M. and Sch{\"a}fers, Rainhild and Mattern, Elke and Heldmann, Patrick and Braun, Cordula and Marotzki, Ulrike and Kraus, Elke and George, Sabine and M{\"u}ller, Christian and Corsten, Sabine and Lauer, Norina and Schade, Veronika and Kempf, Sabrina and Binnig, Marlis and Wasner, Mieke}, title = {Forschung zu komplexen Interventionen in der Pflege- und Hebammenwissenschaft und in den Wissenschaften der Physiotherapie, Ergotherapie und Logop{\"a}die}, doi = {10.6094/UNIFR/2013/1}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-8939}, pages = {57}, abstract = {Dieser forschungsmethodische Leitfaden behandelt folgende Themen: (1) Wissenschaftlicher Transfer von komplexen Interventionen inkl. Fragestellungen und Methoden von Machbarkeits-, Wirksamkeits- und Implementationsstudien. (2) Recherchestrategien zur Krankheitslast inkl. Folgen f{\"u}r Betroffene und Gesellschaft und Versorgungsstatus durch Gesundheitsfachberufe. (3) Pr{\"a}zisierung von Forschungsfragestellungen. (4) Evidenzrecherche, Evidenzmapping und Beurteilung der Evidenzlage. (5) F{\"o}rderm{\"o}glichkeiten von Forschungsprojekten. (6) Forschungsnetzwerke in den Gesundheitsfachberufen.}, language = {de} } @techreport{VoigtRadloffAyerleBraunetal., type = {Working Paper}, author = {Voigt-Radloff, Sebastian and Ayerle, Gertrud M. and Braun, Cordula and H{\"o}hl, Werner and Lauer, Norina and Lautenschl{\"a}ger, Sindy and Marotzki, Ulrike and Mattern, Elke and M{\"u}ller, Christian}, title = {Leitfaden zum Aufbau Praxisbasierter Forschungsnetzwerke (PBFN) in den Gesundheitsfachberufen}, language = {de} } @inproceedings{MiedlBraun, author = {Miedl, Christian and Braun, J{\"u}rgen}, title = {Powertrain and electric system design of a 800-volt all-electric car}, series = {European Conference on Nanoelectronics and Embedded Systems for Electric Mobility, eMotion in Smart Cities, 24.-28. September, 2012, Bologna, Italy}, booktitle = {European Conference on Nanoelectronics and Embedded Systems for Electric Mobility, eMotion in Smart Cities, 24.-28. September, 2012, Bologna, Italy}, language = {en} } @misc{BroserFalterŁawrowskietal., author = {Broser, Christian and Falter, Thomas and Ławrowski, Robert Damian and Altenbuchner, Amelie and V{\"o}gele, Daniel and Koss, Claus and Schlampp, Matthias and Dunnweber, Jan and Steffens, Oliver and Heckner, Markus and Jaritz, Sabine and Schiegl, Thomas and Corsten, Sabine and Lauer, Norina and Guertler, Katherine and Koenig, Eric and Haug, Sonja and Huber, Dominik and Birkenmaier, Clemens and Krenkel, Lars and Wagner, Thomas and Justus, Xenia and Saßmannshausen, Sean Patrick and Kleine, Nadine and Weber, Karsten and Braun, Carina N. and Giacoppo, Giuliano and Heinrich, Michael and Just, Tobias and Schreck, Thomas and Schnabl, Andreas and Gilmore, Amador T{\´e}ran and Roeslin, Samuel and Schmid, Sandra and Wellnitz, Felix and Malz, Sebastian and Maurial, Andreas and Hauser, Florian and Mottok, J{\"u}rgen and Klettke, Meike and Scherzinger, Stefanie and St{\"o}rl, Uta and Heckner, Markus and Bazo, Alexander and Wolff, Christian and Kopper, Andreas and Westner, Markus and Pongratz, Christian and Ehrlich, Ingo and Briem, Ulrich and Hederer, Sebastian and Wagner, Marcus and Schillinger, Moritz and G{\"o}rlach, Julien and Hierl, Stefan and Siegl, Marco and Langer, Christoph and Hausladen, Matthias and Schreiner, Rupert and Haslbeck, Matthias and Kreuzer, Reinhard and Br{\"u}ckl, Oliver and Dawoud, Belal and Rabl, Hans-Peter and Gamisch, Bernd and Schmidt, Ottfried and Heberl, Michael and G{\"a}nsbauer, Bianca and Bick, Werner and Ellermeier, Andreas and Monkman, Gareth J. and Prem, Nina and Sindersberger, Dirk and Tschurtschenthaler, Karl and Aurbach, Maximilian and Dendorfer, Sebastian and Betz, Michael A. and Szecsey, Tamara and Mauerer, Wolfgang and Murr, Florian}, title = {Forschung 2018}, editor = {Baier, Wolfgang}, address = {Regensburg}, organization = {Ostbayerische Technische Hochschule Regensburg}, isbn = {978-3-9818209-5-9}, doi = {10.35096/othr/pub-1382}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-13826}, pages = {98}, subject = {Forschung}, language = {de} } @inproceedings{BraunMottokMiedletal., author = {Braun, J{\"u}rgen and Mottok, J{\"u}rgen and Miedl, Christian and Greyer, D. and Minas, Mark}, title = {Fail-Safe und Fault-Tolerant Mechanismen}, series = {Proceedings of the 3rd Embedded Software Engineering Congress, 7. bis 9. Dezember 2010, Sindelfingen}, booktitle = {Proceedings of the 3rd Embedded Software Engineering Congress, 7. bis 9. Dezember 2010, Sindelfingen}, pages = {378 -- 386}, language = {en} } @inproceedings{BraunMottokMiedletal., author = {Braun, J{\"u}rgen and Mottok, J{\"u}rgen and Miedl, Christian and Geyer, Dirk and Minas, Mark}, title = {Increasing the reliability of single and multicore systems with software rejuvenation and coded processing}, series = {Automotive Safety \& Security 2012, Sicherheit und Zuverl{\"a}ssigkeit f{\"u}r automobile Informationstechnik, 14.-15. Nov. 2012, Karlsruhe}, booktitle = {Automotive Safety \& Security 2012, Sicherheit und Zuverl{\"a}ssigkeit f{\"u}r automobile Informationstechnik, 14.-15. Nov. 2012, Karlsruhe}, pages = {163 -- 178}, abstract = {The safety of electric vehicles has the highest priority because it helps contribute to customer confidence and thereby ensures further growth of the electromobility market. Therefore in series production redundant hardware concepts like dual core microcontrollers running in lock-step-mode are used to reach ASIL D safety requirements given from the ISO 26262. Coded processing is capable of reducing redundancy in hardware by adding diverse redundancy in software, e.g. by specific coding of data and instructions. A system with two coded processing channels is considered. One channel is active and one is in cold standby. When the active channel fails, the service is switched from the active channel to the standby channel. It is imaginable that the two channels with implemented coded processing are running with time redundancy on a single core or on a multi core system where for example different ASIL levels are partitioned on different cores. In this paper a redundant concept based on coded processing and software rejuvenation will be taken into account.}, language = {en} } @inproceedings{BraunMottokMiedletal., author = {Braun, J{\"u}rgen and Mottok, J{\"u}rgen and Miedl, Christian and Geyer, Dirk and Minas, Mark}, title = {Capability of single hardware channel for automotive safety applications according to ISO 26262}, series = {2012 International Conference on Applied Electronics (AE 2012), Pilsen, Czech Republic, 5 - 7 September 2012}, booktitle = {2012 International Conference on Applied Electronics (AE 2012), Pilsen, Czech Republic, 5 - 7 September 2012}, isbn = {978-80-261-0038-6}, pages = {41 -- 45}, language = {en} } @inproceedings{BraunMottokMiedletal., author = {Braun, J{\"u}rgen and Mottok, J{\"u}rgen and Miedl, Christian and Geyer, Dirk and Minas, Mark}, title = {Overview and Evaluation of Fail-Safe and Fault-Tolerant Mechanisms for the Electromobility according to ISO26262}, series = {1st International Electromobility Congress, 12. - 13. 5. 2011, Prague}, booktitle = {1st International Electromobility Congress, 12. - 13. 5. 2011, Prague}, pages = {5}, language = {en} }