TY  - CHAP
A1  - Rosin, Julia
A1  - Kubalski, Thomas
A1  - Butenweg, Christoph
T1  - Seismic Design of cylindrical liquid storage tanks
T2  - Seismic design of industrial facilities : proceedings of the International Conference on Seismic Design of Industrial Facilities (SeDIF-Conference) ; [Aachen, 26. - 27. September 2013] / Chair of Structural Statics and Dynamics, RWTH Aachen. Sven Klinkel ..., ed.
Y1  - 2014
SN  - 978-3-658-02810-7 (E-Book) ; 978-3-658-02809-1 (Print)
U6  - http://dx.doi.org/10.1007/978-3-658-02810-7_36
SP  - 429
EP  - 440
PB  - Springer Vieweg
CY  - Wiesbaden
ER  - 
TY  - CHAP
A1  - Altay, Okyay
A1  - Taddei, Francesca
A1  - Butenweg, Christoph
A1  - Klinkel, Sven
T1  - Vibration mitigation of wind turbine towers with tuned mass dampers
T2  - Wind turbine control and monitoring. (Advances in industrial control)
N2  - Because of its minor environmental impact, electricity generation using wind power is getting remarkable. The further growth of the wind industry depends on technological solutions to the challenges in production and construction of the turbines. Wind turbine tower vibrations, which limit power generation efficiency and cause fatigue problems with high maintenance costs, count as one of the main structural difficulties in the wind energy sector. To mitigate tower vibrations auxiliary measures are necessary. The effectiveness of tuned mass damper is verified by means of a numeric study on a 5 MW onshore reference wind turbine. Hereby, also seismic-induced vibrations and soil–structure interaction are considered. Acquired results show that tuned mass damper can effectively reduce resonant tower vibrations and improve the fatigue life of wind turbines. This chapter is also concerned with tuned liquid column damper and a semiactive application of it. Due to its geometric versatility and low prime costs, tuned liquid column dampers are a good alternative to other damping measures, in particular for slender structures like wind turbines.
Y1  - 2014
SN  - 978-3-319-08412-1 (Print) ; 978-3-319-08413-8 (E-Book)
U6  - http://dx.doi.org/10.1007/978-3-319-08413-8_12
SP  - 337
EP  - 373
PB  - Springer
CY  - Cham ; Heidelberg ; New York ; Dordrecht ; London
ER  - 
TY  - RPRT
A1  - Butenweg, Christoph
A1  - Kaiser, Diethelm
T1  - Seismic hazard harmonisation in Europe (SHARE) : DGEB-Workshop in Frankfurt a.M., Germany, 27. May 2014 / Christoph Butenweg, Diethelm Kaiser (editors)
Y1  - 2014
SN  - 3-930108-12-7
PB  - DGEB
CY  - Aachen
ER  - 
TY  - BOOK
A1  - Klinkel, Sven
A1  - Butenweg, Christoph
A1  - Lin, Gao
A1  - Holtschoppen, Britta
T1  - Seismic design of industrial facilities : Proceedings of the International Conference on Seismic Design of Industrial Facilities (SeDIF) /  Sven Klinkel, Christoph Butenweg, Gao Lin, Britta Holtschoppen Editors
Y1  - 2014
SN  - 978-3-658-02809-1 (Print) ; 978-365-80281-0-7 (E-Book)
U6  - http://dx.doi.org/10.1007/978-3-658-02810-7
PB  - Springer Vieweg
CY  - Wiesbaden
ER  - 
TY  - JOUR
A1  - Vogt, C.
A1  - Mottaghy, Darius
A1  - Rath, V.
A1  - Marquart, G.
A1  - Dijkshoorn, L.
A1  - Wolf, A.
A1  - Clauser, C.
T1  - Vertical variation in heat flow on the Kola Peninsula: palaeoclimate or fluid flow?
JF  - Geophysical Journal International
N2  - Following earlier studies, we present forward and inverse simulations of heat and fluid transport of the upper crust using a local 3-D model of the Kola area. We provide best estimates for palaeotemperatures and permeabilities, their errors and their dependencies. Our results allow discriminating between the two mentioned processes to a certain extent, partly resolving the non-uniqueness of the problem. We find clear indications for a significant contribution of advective heat transport, which, in turn, imply only slightly lower ground surface temperatures during the last glacial maximum relative to the present value. These findings are consistent with the general background knowledge of (i) the fracture zones and the corresponding fluid movements in the bedrock and (ii) the glacial history of the Kola area.
Y1  - 2014
U6  - http://dx.doi.org/10.1093/gji/ggu282
SN  - 1365-246X
VL  - 199
IS  - 2
SP  - 829
EP  - 843
PB  - Oxford University Press
CY  - Oxford
ER  - 
TY  - CHAP
A1  - Kern, Alexander
A1  - Braun, Christian
T1  - Risk management according to IEC 62305-2 edition 2: 2010–12 assessment of structures with a risk of explosion
T2  - 2014 International Conference on Lightning Protection (ICLP), Shanghai, China
N2  - Risk management for structures with a risk of explosion should be considered very carefully when performing a risk analysis according to IEC 62305-2. In contrast to the 2006 edition of the standard, the 2010 edition describes the topic “Structures with a risk of explosion” in more detail. Moreover, in Germany separate procedures and parameters are defined for the risk analysis of structures with a risk of explosion (Supplement 3 of the German DIN EN 62305-2 standard). This paper describes the contents and the relevant calculations of this Supplement 3, together with a numerical example.
Y1  - 2014
SP  - 1237
EP  - 1242
ER  - 
TY  - CHAP
A1  - Rousseau, Alain
A1  - Kern, Alexander
T1  - How to deal with environmental risk in IEC 62305-2
T2  - 2014 International Conference on Lightning Protection (ICLP), Shanghai, China
N2  - The 2nd edition of the lightning risk management
standard (IEC 62305-2) considers structures, which may
endanger environment. In these cases, the loss is not limited to
the structure itself, which is valid for usual structures. In the past
(Edition 1) this danger was simply taken into account by a special
hazard factor, multiplying the existing risk for the structure with
a number. Now, in the edition 2, we add to the risk for the
structure itself a “second risk” due to the losses outside the
structure. The losses outside can be treated independently from
what occurs inside. This is a major advantage to analyze the risk
for sensitive structures, like chemical plants, nuclear plants, or
structures containing explosives, etc. In this paper, the existing
procedure given by the European version EN 62305-2 Ed.2 is
further developed and applied to a few structures.
Y1  - 2014
SP  - 521
EP  - 527
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  - Wetter, Martin
A1  - Kern, Alexander
T1  - Number of lightning strikes to tall structures - comparison of calculations and measurements using a modern lightning monitoring system
T2  - 2014 International Conference on Lightning Protection (ICLP), Shanghai, China
Y1  - 2014
SP  - 1
EP  - 7
ER  - 
TY  - CHAP
A1  - Pieper, Martin
A1  - Schulz, Silvia
T1  - Teaching Simulation Methods with COMSOL Multiphysics
N2  - This paper describes two courses on
simulation methods for graduate students:
“Simulation Methods” and “Simulation and
Optimization in Virtual Engineering” The
courses were planned to teach young engineers
how to work with simulation software as well as
to understand the necessary mathematical background.
As simulation software COMSOL is
used. The main philosophy was to combine
theory and praxis in a way that motivates the
students. In addition “soft skills” should be
improved. This was achieved by project work as
final examination. As underlying didactical principle
the ideas of Bloom’s revised taxonomy
were followed. The paper basically focusses on
educational aspects, e.g. how to structure the
course, plan the exercises, organize the project
work and include practical COMSOL examples.
KW  - COMSOL Multiphysics
KW  - Optimization module
KW  - LiveLink for MATLAB
KW  - Bloom Taxonomy
KW  - education
Y1  - 2014
ER  -