TY - CHAP A1 - Rosin, Julia A1 - Butenweg, Christoph T1 - Seismic isolation of cylindrical liquid storage tanks T2 - Proceedings of the 9th European Conference on Structural Dynamics, EURODYN 2014 Porto, Portugal, 30 June - 2 July 2014 / A. Cunha, E. Caetano, .... (eds.) Y1 - 2014 SN - 978-972-752-165-4 SP - 3145 EP - 3152 CY - Porto ER - TY - CHAP A1 - Rosin, J. A1 - Mykoniou, K. A1 - Butenweg, Christoph T1 - Analysis Of Base Isolated Liquid Storage Tanks With 3D Fsi-Analysis As Well As Simplified Approaches T2 - 16th World Conference on Earthquake Engineering, 16WCEE 2017 Santiago Chile, January 9th to 13th 2017 N2 - Tanks are preferably designed, for cost-saving reasons, as circular, cylindrical, thin-walled shells. In case of seismic excitation, these constructions are highly vulnerable to stability failures. An earthquake-resistant design of rigidly supported tanks for high seismic loading demands, however, uneconomic wall thicknesses. A cost-effective alternative can be provided by base isolation systems. In this paper, a simplified seismic design procedure for base isolated tanks is introduced, by appropriately modifying the standard mechanical model for flexible, rigidly supported tanks. The non-linear behavior of conventional base isolation systems becomes an integral part of a proposed simplified process, which enables the assessment of the reduced hydrodynamic forces acting on the tank walls and the corresponding stress distribution. The impulsive and convective actions of the liquid are taken into account. The validity of this approach is evaluated by employing a non-linear fluid-structure interaction algorithm of finite element method. Special focus is placed on the boundary conditions imposed from the base isolation and the resulting hydrodynamic pressures. Both horizontal and vertical component of ground motion are considered in order to study the principal effects of the base isolation on the pressure distribution of the tank walls. The induced rocking effects associated with elastomeric bearings are discussed. The results manifest that base isolated tanks can be designed for seismic loads by means of the proposed procedure with sufficient accuracy, allowing to dispense with numerically expensive techniques. KW - liquid storage tank KW - seismic isolation KW - elastomeric bearing KW - friction pendulum bearing KW - simplified approach Y1 - 2017 N1 - Paper No 2246 SP - 1 EP - 14 PB - Chilean Association on Seismology and Earthquake Engineering (ACHISINA) ER - TY - JOUR A1 - Rosenauer, A. A1 - Oberst, W. A1 - Litvinov, D. A1 - Gerthsen, D. A1 - Förster, Arnold A1 - Schmidt, R. T1 - Structural and Chemical Investigation of In-0.6Ga0.4As Stranski-Krastanow Layers Burried in GaAs by Transmission Electron Microscopy JF - Physical Review B. 61 (2000), H. 12 Y1 - 2000 SN - 1095-3795 SP - 8276 EP - 8288 ER - TY - CHAP A1 - Rochefort, E. de A1 - Verver, M. A1 - Grunendahl, A. A1 - Mooi, H. A1 - Butenweg, Christoph T1 - Detailed modelling of the lumbar spine for investigation of low back pain T2 - Digital Human Modeling for Design and Engineering Symposium : Iowa City, Iowa June 14-16, 2005. (SAE technical papers series ; 2005-1-2716) Y1 - 2005 U6 - http://dx.doi.org/10.4271/2005-01-2716 SN - 0096-736X SP - 1 EP - 11 PB - SAE International CY - Warrendale, Pa. ER - TY - JOUR A1 - Rochefort, E. de A1 - Verver, M. A1 - Grunendahl, A. A1 - Mooi, H. A1 - Butenweg, Christoph T1 - Detailed modelling of the lumbar spine for investigations of low back pain JF - SAE transactions : papers presented at Society and Section meetings / Society of Automotive Engineers Y1 - 2005 SN - 0096-736X VL - Volume 114 IS - Part 7 SP - 788 EP - 796 ER - TY - CHAP A1 - Riga, Evi A1 - Pitilakis, Kyriazis A1 - Butenweg, Christoph A1 - Apostolaki, Stefania A1 - Karatzetzou, Anna ED - Arion, Cristian ED - Scupin, Alexandra ED - Ţigănescu, Alexandru T1 - Investigating the impact of the new European Seismic Hazard Model ESHM20 on the seismic design and safety control of industrial facilities T2 - The Third European Conference on Earthquake Engineering and Seismology September 4 – September 9, 2022, Bucharest N2 - The seismic performance and safety of major European industrial facilities has a global interest for Europe, its citizens and economy. A potential major disaster at an industrial site could affect several countries, probably far beyond the country where it is located. However, the seismic design and safety assessment of these facilities is practically based on national, often outdated seismic hazard assessment studies, due to many reasons, including the absence of a reliable, commonly developed seismic hazard model for whole Europe. This important gap is no more existing, as the 2020 European Seismic Hazard Model ESHM20 was released in December 2021. In this paper we investigate the expected impact of the adoption of ESHM20 on the seismic demand for industrial facilities, through the comparison of the ESHM20 probabilistic hazard at the sites where industrial facilities are located with the respective national and European regulations. The goal of this preliminary work in the framework of Working Group 13 of the European Association for Earthquake Engineering (EAEE), is to identify potential inadequacies in the design and safety control of existing industrial facilities and to highlight the expected impact of the adoption of the new European Seismic Hazard Model on the design of new industrial facilities and the safety assessment of existing ones. KW - ESHM20, industrial facilities KW - seismic hazard KW - seismic design KW - safety control Y1 - 2022 SN - 978-973-100-533-1 SP - 3261 EP - 3270 ER - TY - JOUR A1 - Rieke, Christian A1 - Stollenwerk, Dominik A1 - Dahmen, Markus A1 - Pieper, Martin T1 - Modeling and optimization of a biogas plant for a demand-driven energy supply JF - Energy N2 - Due to the Renewable Energy Act, in Germany it is planned to increase the amount of renewable energy carriers up to 60%. One of the main problems is the fluctuating supply of wind and solar energy. Here biogas plants provide a solution, because a demand-driven supply is possible. Before running such a plant, it is necessary to simulate and optimize the process. This paper provides a new model of a biogas plant, which is as accurate as the standard ADM1 model. The advantage compared to ADM1 is that it is based on only four parameters compared to 28. Applying this model, an optimization was installed, which allows a demand-driven supply by biogas plants. Finally the results are confirmed by several experiments and measurements with a real test plant. Y1 - 2018 U6 - http://dx.doi.org/10.1016/j.energy.2017.12.073 SN - 0360-5442 VL - 145 SP - 657 EP - 664 PB - Elsevier CY - Amsterdam ER - TY - THES A1 - Reyes Ochoa, Leonel T1 - Engineering aspects of a parabolic trough collector field with direct steam generation and an organic rankine cycle Y1 - 2014 N1 - Aachen, Fachhochsch., Masterarbeit, 2014 PB - Fachhochschule Aachen CY - Aachen ER - TY - CHAP A1 - Rens, Gavin A1 - Ferrein, Alexander A1 - Poel, Etienne van der T1 - Extending DTGolog to deal with POMD-Ps T2 - Proceedings of the Nineteenth Annual Symposium of the Pattern Recognition Association of South Africa (PRASA 2008) Y1 - 2008 SP - 49 EP - 54 ER - TY - CHAP A1 - Rendon, Carlos A1 - Schwager, Christian A1 - Ghiasi, Mona A1 - Schmitz, Pascal A1 - Bohang, Fakhri A1 - Caminos, Ricardo Alexander Chico A1 - Teixeira Boura, Cristiano José A1 - Herrmann, Ulf T1 - Modeling and upscaling of a pilot bayonettube reactor for indirect solar mixed methane reforming T2 - AIP Conference Proceedings Y1 - 2020 U6 - http://dx.doi.org/10.1063/5.0029974 IS - 2303 SP - 170012-1 EP - 170012-9 ER -