TY  - CHAP
A1  - Altherr, Lena
A1  - Ederer, Thorsten
A1  - Schänzle, Christian
A1  - Lorenz, Ulf
A1  - Pelz, Peter F.
T1  - Algorithmic system design using scaling and affinity laws
T2  - Operations Research Proceedings 2015
N2  - Energy-efficient components do not automatically lead to energy-efficient systems. Technical Operations Research (TOR) shifts the focus from the single component to the system as a whole and finds its optimal topology and operating strategy simultaneously. In previous works, we provided a preselected construction kit of suitable components for the algorithm. This approach may give rise to a combinatorial explosion if the preselection cannot be cut down to a reasonable number by human intuition. To reduce the number of discrete decisions, we integrate laws derived from similarity theory into the optimization model. Since the physical characteristics of a production series are similar, it can be described by affinity and scaling laws. Making use of these laws, our construction kit can be modeled more efficiently: Instead of a preselection of components, it now encompasses whole model ranges. This allows us to significantly increase the number of possible set-ups in our model. In this paper, we present how to embed this new formulation into a mixed-integer program and assess the run time via benchmarks. We present our approach on the example of a ventilation system design problem.
KW  - Optimal Topology
KW  - Piecewise Linearization
KW  - Ventilation System
KW  - Similarity Theory
Y1  - 2017
SN  - 978-3-319-42901-4
SN  - 978-3-319-42902-1
U6  - https://doi.org/10.1007/978-3-319-42902-1
N1  - International Conference of the German, Austrian and Swiss Operations Research Societies (GOR, ÖGOR, SVOR/ASRO), University of Vienna, Austria, September 1-4, 2015
SP  - 605
EP  - 611
PB  - Springer
CY  - Cham
ER  - 
TY  - CHAP
A1  - Altherr, Lena
A1  - Ederer, Thorsten
A1  - Vergé, Angela
A1  - Pelz, Peter F.
T1  - Algorithmische Struktursynthese eines hydrostatischen Getriebes
T2  - Antriebssysteme 2015 : Elektrik, Mechanik, Fluidtechnik in der Anwendung
Y1  - 2015
SN  - 978-3-18-092268-3
N1  - Antriebssysteme 2015 - Elektrik, Mechanik, Fluidtechnik in der Anwendung. VDI/VDE-Fachtagung. 11.11.15-12.11.15, Aachen.

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SP  - 145
EP  - 155
PB  - VDI-Verlag
CY  - Düsseldorf
ER  - 
TY  - JOUR
A1  - Grotendorst, Johannes
T1  - Algorithms of mixed symbolic-numeric type for rational approximation
JF  - Artificial intelligence, expert systems and symbolic computing : selected and revised papers from the IMACS 13th World Congress [on Computation and Applied Mathematics], Dublin, Ireland, July 1991 / ed. by Elias N. Houstis ...
Y1  - 1992
SN  - 0-444-89703-8
N1  - zgl.  Technical Report KFA-ZAM-IB-9205 ;      World Congress on Computation and Applied Mathematics <13, 1991, Dublin> ; International Association for Mathematics and Computers in Simulation
SP  - 145
EP  - 154
PB  - North-Holland
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Jeromin, Günter Erich
A1  - Scheidt, Annette
T1  - Aliphatic optically active alcohols by enzyme-aided synthesis
JF  - Tetrahedron Letters  . 32 (1991), H. 48
Y1  - 1991
SN  - 0040-4039
N1  - ISSN der E-Ausg.: 1359-8562
SP  - 7021
EP  - 7024
ER  - 
TY  - CHAP
A1  - Dylla, Frank
A1  - Ferrein, Alexander
A1  - Lakemeyer, Gerhard
T1  - AllemaniACs 2003 team description
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Y1  - 2003
SP  - 1
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ER  - 
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A1  - Vorst, Phillip
A1  - Ferrein, Alexander
A1  - Lakemeyer, Gerhard
T1  - AllemaniACs3D team description
Y1  - 2006
SP  - 1
EP  - 6
ER  - 
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A1  - Ferrein, Alexander
A1  - Lakemeyer, Gerhard
A1  - Schiffer, Stefan
T1  - AllemaniACs@ home 2006 team description
Y1  - 2006
SP  - 1
EP  - 6
ER  - 
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A1  - Wollert, Jörg
T1  - Alles automatisch : komplexes qualitätsorientiertes Logistikmanagement durch Vollautomatisierung
JF  - Elektrotechnik für die Automatisierung
Y1  - 1998
SN  - 0013-581X
VL  - Bd. 80
IS  - H. 4
SP  - 196
EP  - 199
ER  - 
TY  - BOOK
A1  - Alt, Helmut
T1  - Allgemeine Elektrotechnik, Nachrichtentechnik, Impulstechnik für UPN-Rechner. (Anwendung programmierbarer Taschenrechner ; 2)
Y1  - 1980
SN  - 3-528-04151-X
PB  - Vieweg
CY  - Braunschweig [u.a.]
ER  - 
TY  - JOUR
A1  - Laack, Walter van
T1  - Allgemeine physiotherapeutische Behandlung nach Hüft- und Kniegelenkoperationen
JF  - Physiotherapie. 77 (1986), H. 2
Y1  - 1986
SN  - 0031-9392
SP  - 68
EP  - 72
ER  -