@inproceedings{HendlerExtraLockanetal., author = {Hendler, Marco and Extra, Simon and Lockan, Michael and Bestle, Dieter and Flassig, Peter Michael}, title = {Compressor Design in the Context of Holistic Aero Engine Design}, series = {2017 AIAA Aviation Forum, Denver, AIAA-2017-3334, 2017}, booktitle = {2017 AIAA Aviation Forum, Denver, AIAA-2017-3334, 2017}, doi = {10.2514/6.2017-3334}, language = {en} } @inproceedings{ExtraLockanBestleetal., author = {Extra, Simon and Lockan, Michael and Bestle, Dieter and Flassig, Peter Michael}, title = {A Comparison of Strategies for Efficient Core Engine Optimization with Coupled Subsystems}, series = {Proceedings of Montreal 2018, Global Power and Propulsion Forum, 7-9.05.2018}, booktitle = {Proceedings of Montreal 2018, Global Power and Propulsion Forum, 7-9.05.2018}, pages = {8}, abstract = {The present paper compares four different optimization strategies for decoupled optimization in the context of preliminary core engine design for aero engines. An optimization with the AAO (All-At-Once) approach is performed as a baseline and compared against the performance and results of three cascaded optimization strategies: CO (Collaborative Optimization), BLISS 2000 (Bi-Level Integrated System Synthesis) and ISOC (Interface Segmentation Optimization Concept). The optimization problem is based on a thermodynamic core engine model representing an industrial application example. The results are assessed with respect to typical requirements for multidisciplinary core engine design. The impact of the used optimization strategy on the performance of the optimization concept is investigated and discussed.}, language = {en} } @inproceedings{ExtraLockanBestleetal., author = {Extra, Simon and Lockan, Michael and Bestle, Dieter and Flassig, Peter Michael}, title = {Coupled Subsystem Optimization for Preliminary Core Engine Design}, series = {Evolutionary and deterministic methods for design optimization and control with applications to industrial and societal problems, Sep. 13-15, 2017 in Madrid, Spain, EUROGEN 2017, Book of abstracts}, booktitle = {Evolutionary and deterministic methods for design optimization and control with applications to industrial and societal problems, Sep. 13-15, 2017 in Madrid, Spain, EUROGEN 2017, Book of abstracts}, publisher = {Technical University}, address = {Madrid}, isbn = {978-84-697-5112-1}, language = {en} } @inproceedings{ExtraLockanBestleetal., author = {Extra, Simon and Lockan, Michael and Bestle, Dieter and Flassig, Peter Michael}, title = {Coupled Subsystem Optimiziation for Preliminary Core Engine Design}, series = {Evolutionary and Deterministic Methods for Design Optimization and Control With Applications to Industrial and Societal Problems}, booktitle = {Evolutionary and Deterministic Methods for Design Optimization and Control With Applications to Industrial and Societal Problems}, editor = {Andr{\`e}s-P{\`e}rez, Esther and Gonz{\´a}lez, Leo M. and Periaux, Jacques and Gauger, Nicolas R. and Quagliarella, Domenico and Giannakoglou, Kyriakos C.}, publisher = {Springer International Publishing}, address = {Cham}, isbn = {978-3-319-89889-6}, doi = {10.1007/978-3-319-89890-2_33}, pages = {513 -- 527}, language = {en} } @inproceedings{DuttaFlassigBestle, author = {Dutta, Amit Kumar and Flassig, Peter Michael and Bestle, Dieter}, title = {Multi-Objective Blade Design using a Quasi-3D Non-Dimensional Parameterization Approach}, language = {en} } @inproceedings{Flassig, author = {Flassig, Peter Michael}, title = {Multi-Objective Compressor Blade Optimisation using a Non-Dimensional Parameterisation Approach}, language = {en} } @inproceedings{DuttaFlassigBestle, author = {Dutta, Amit Kumar and Flassig, Peter Michael and Bestle, Dieter}, title = {A Non-Dimensional Quasi-3D Blade Design approach with respect to Aerodynamic Criteria}, series = {Proceedings of the ASME Turbo Expo 2008, presented at the 2008 ASME Turbo Expo, June 9 - 13, 2008, Berlin, Germany, Vol 6., Part C}, booktitle = {Proceedings of the ASME Turbo Expo 2008, presented at the 2008 ASME Turbo Expo, June 9 - 13, 2008, Berlin, Germany, Vol 6., Part C}, publisher = {ASME}, address = {New York, NY}, isbn = {978-0-7918-4316-1}, pages = {2445 -- 2455}, language = {en} } @inproceedings{KeskinSwobodaFlassigetal., author = {Keskin, Akin and Swoboda, Marius and Flassig, Peter Michael and Dutta, Amit Kumar and Bestle, Dieter}, title = {Accelerated Industrial Blade Design Based on Multi-Objective Optimization Using Surrogate Model Methodology}, series = {Proceedings of the ASME Turbo Expo 2008, presented at the 2008 ASME Turbo Expo, June 9 - 13, 2008, Berlin, Germany, Vol 6., Part C}, booktitle = {Proceedings of the ASME Turbo Expo 2008, presented at the 2008 ASME Turbo Expo, June 9 - 13, 2008, Berlin, Germany, Vol 6., Part C}, publisher = {ASME}, address = {New York, NY}, isbn = {978-0-7918-4316-1}, pages = {2339 -- 2349}, language = {en} } @inproceedings{FlassigDuttaBestle, author = {Flassig, Peter Michael and Dutta, Amit Kumar and Bestle, Dieter}, title = {Robustheits- und zuverl{\"a}ssigkeitsbasierte Mehrkriterien-Optimierung von Verdichterschaufeln}, language = {de} } @inproceedings{DuttaFlassigBestleetal., author = {Dutta, Amit Kumar and Flassig, Peter Michael and Bestle, Dieter and Keskin, Akin and Swoboda, Marius}, title = {Validierung optimierter Verdichterschaufeln mit Hilfe der 3D-CFD}, series = {Deutscher Luft- und Raumfahrtkongress 2008, Darmstadt, 23. bis 25. September 2008, Bd. 2}, booktitle = {Deutscher Luft- und Raumfahrtkongress 2008, Darmstadt, 23. bis 25. September 2008, Bd. 2}, publisher = {Dt. Ges. f{\"u}r Luft- und Raumfahrt}, address = {Bonn}, pages = {1023 -- 1033}, language = {de} } @inproceedings{FlassigDuttaBestle, author = {Flassig, Peter Michael and Dutta, Amit Kumar and Bestle, Dieter}, title = {Robuste Auslegung von Verdichterschaufeln}, series = {Deutscher Luft- und Raumfahrtkongress 2008, Darmstadt, 23. bis 25. September 2008, Bd. 2}, booktitle = {Deutscher Luft- und Raumfahrtkongress 2008, Darmstadt, 23. bis 25. September 2008, Bd. 2}, publisher = {Dt. Ges. f{\"u}r Luft- und Raumfahrt}, address = {Bonn}, pages = {1001 -- 1010}, language = {de} } @inproceedings{SommerFlassigDuttaetal., author = {Sommer, Lars and Flassig, Peter Michael and Dutta, Amit Kumar and Bestle, Dieter}, title = {Kr{\"u}mmungs-Nebenbedingungen in der aerodynamischen Mehrkriterien-Optimierung von Verdichterschaufelprofilen}, series = {Deutscher Luft- und Raumfahrtkongress 2008, Darmstadt, 23. bis 25. September 2008, Bd. 2}, booktitle = {Deutscher Luft- und Raumfahrtkongress 2008, Darmstadt, 23. bis 25. September 2008, Bd. 2}, publisher = {Dt. Ges. f{\"u}r Luft- und Raumfahrt}, address = {Bonn}, pages = {1011 -- 1022}, language = {de} } @inproceedings{DuttaFlassigBestle, author = {Dutta, Amit Kumar and Flassig, Peter Michael and Bestle, Dieter}, title = {Validation of Q3D-Blade Optimisation Results by 3D-CFD}, language = {en} } @inproceedings{FlassigDuttaBestle, author = {Flassig, Peter Michael and Dutta, Amit Kumar and Bestle, Dieter}, title = {Robustheit und Zuverl{\"a}ssigkeit in der aerodynamischen Verdichterauslegung}, language = {de} } @inproceedings{DuttaFlassigOttoetal., author = {Dutta, Amit Kumar and Flassig, Peter Michael and Otto, Dierk and Bestle, Dieter}, title = {Process Integration for Multidisciplinary Multi-objective Blade Design}, language = {en} } @inproceedings{KeskinSwobodaFlassigetal., author = {Keskin, Akin and Swoboda, Marius and Flassig, Peter Michael and Dutta, Amit Kumar and Bestle, Dieter}, title = {New Optimization Strategy for Rapid industrial Blade Design}, language = {en} } @inproceedings{FlassigBestle, author = {Flassig, Peter Michael and Bestle, Dieter}, title = {Probabilistische Studien zur robusten aerodynamischen Verdichterauslegung}, language = {de} } @inproceedings{FlassigBestle, author = {Flassig, Peter Michael and Bestle, Dieter}, title = {Robust 2D Compressor Blading with respect to Measured Manufacturing Uncertainties}, language = {en} } @inproceedings{BestleFlassig, author = {Bestle, Dieter and Flassig, Peter Michael}, title = {Optimal Aerodynamic Compressor Blade Design Considering Manufacturing Noise}, language = {en} } @inproceedings{BestleFlassigDutta, author = {Bestle, Dieter and Flassig, Peter Michael and Dutta, Amit Kumar}, title = {Robust Design of Compressor Blades in the Presence of Manufacturing Noise}, series = {9th European Conference on turbomachinery, fluid dynamics and thermodynamics, Conference Proceedings, Vol. 1}, booktitle = {9th European Conference on turbomachinery, fluid dynamics and thermodynamics, Conference Proceedings, Vol. 1}, editor = {Sen, M.}, isbn = {978-975-561-390-1}, pages = {1303 -- 1314}, language = {en} } @inproceedings{PoehlmannBestleFlassigetal., author = {P{\"o}hlmann, Fiete and Bestle, Dieter and Flassig, Peter Michael and Hinz, Mich{\`e}l}, title = {Modular Automated Aerodynamic Compressor Design Process}, series = {Extended Abstracts Book, Evolutionary and Deterministic Methods for Design, Optimization and Control with Application to Industrial and Societal Problems, Las Palmas de Gran Canaria, 7.-9.10.2013}, booktitle = {Extended Abstracts Book, Evolutionary and Deterministic Methods for Design, Optimization and Control with Application to Industrial and Societal Problems, Las Palmas de Gran Canaria, 7.-9.10.2013}, editor = {Greiner, David and Galv{\´a}n, Blas and Periaux, Jacques and Gauger, Nicolas R. and Giannakoglou, Kyriakos C. and Winter, G.}, publisher = {Universidad de Las Palmas de Gran Canaria}, address = {Las Palmas de Gran Canaria}, isbn = {978-84-616-6249-4}, language = {en} } @inproceedings{PoehlmannBestleFlassigetal., author = {P{\"o}hlmann, Fiete and Bestle, Dieter and Flassig, Peter Michael and Hinz, Mich{\`e}l}, title = {Modular Automated Aerodynamic Compressor Design Process}, series = {Advances in Evolutionary and Deterministic Methods for Design, Optimiziation and Control in Engineering and Sciences}, booktitle = {Advances in Evolutionary and Deterministic Methods for Design, Optimiziation and Control in Engineering and Sciences}, editor = {Greiner, David and Galv{\`a}n, Blas and P{\`e}riaux, Jacques and Gauger, Nicolas R. and Giannakoglou, Kyriakos C. and Winter, Gabriel}, publisher = {Springer}, address = {Cham}, isbn = {978-3-319-11540-5}, doi = {10.1007/978-3-319-11541-2}, pages = {267 -- 276}, language = {en} } @phdthesis{Flassig, author = {Flassig, Peter Michael}, title = {Unterst{\"u}tzende Optimierungsstrategien zur robusten aerodynamischen Verdichterschaufelauslegung}, publisher = {Shaker}, address = {Aachen}, isbn = {978-3-8440-0580-6}, pages = {XVIII, 193}, language = {de} } @inproceedings{HendlerBestleFlassig, author = {Hendler, Marco and Bestle, Dieter and Flassig, Peter Michael}, title = {Cloning Strategy for Aerodynamic Compressor Design based on Throughflow Analysis}, series = {Proceedings of Montreal 2018, Global Power and Propulsion Forum, 7-9.05.2018}, booktitle = {Proceedings of Montreal 2018, Global Power and Propulsion Forum, 7-9.05.2018}, pages = {8}, abstract = {Due to their high complexity, aero engine development is a time-consuming and cost-intensive process. Therefore, pre-developed proven aerodynamic and geometric compressor information is often used as starting point and transferred to new compressor designs. In the present paper, a new approach for aerodynamic cloning of an already existing compressor flow to a new compressor geometry by use of a streamline curvature based Throughflow solver is presented. Parameterized compressor quantities are automatically modified with the help of optimization strategies, and the resulting compressor aerodynamics are compared to a reference design in each iteration step. The target is to minimize the discrepancy between reference design and new design regarding essential flow parameters like de Haller number, Mach number etc., and thereby to reproduce the aerodynamic image of the reference design. Thus, already collected experience from existing compressor flow fields can be used to reduce costs for developing as well as testing of new compressor configurations. Conducted investigations show a notable acceleration of the design process in comparison to former strategies starting from scratch while achieving an acceptable compliance of aerodynamic parameters.}, language = {en} } @misc{HendlerBestleFlassig, author = {Hendler, Marco and Bestle, Dieter and Flassig, Peter Michael}, title = {Component-specific Engine Design Taking into Account Holistic Design Aspects}, series = {International Journal of Turbomachinery, Propulsion and Power}, volume = {3}, journal = {International Journal of Turbomachinery, Propulsion and Power}, number = {2}, issn = {2504-186X}, doi = {10.3390/ijtpp3020012}, pages = {1 -- 16}, language = {en} } @misc{ExtraHendlerBestleetal., author = {Extra, Simon and Hendler, Marco and Bestle, Dieter and Flassig, Peter Michael}, title = {Verbesserte Vorauslegung des Kerntriebwerks mithilfe eines kaskadierten Optimierungsprozesses}, series = {Luft- und Raumfahrt - Digitalisierung und Vernetzung, Deutscher Luft- und Raumfahrtkongress 2018, 04.-06. September 2018, Friedrichshafen, Graf-Zeppelin-Haus}, journal = {Luft- und Raumfahrt - Digitalisierung und Vernetzung, Deutscher Luft- und Raumfahrtkongress 2018, 04.-06. September 2018, Friedrichshafen, Graf-Zeppelin-Haus}, publisher = {Deutsche Gesellschaft f{\"u}r Luft- und Raumfahrt - Lilienthal-Oberth e.V.}, address = {Bonn}, doi = {10.25967/480163}, url = {http://nbn-resolving.de/urn:nbn:de:101:1-2020011711475557798029}, pages = {10}, language = {de} } @misc{UrbanoBestleGerstbergeretal., author = {Urbano, Jos{\`e} and Bestle, Dieter and Gerstberger, Ulf and Flassig, Peter Michael}, title = {Low-Order Representation of Manufacturing Variations Based on B-Spline Morphing}, series = {ASME 2019 International Mechanical Engineering Congress and Exposition, November 11-14, 2019 Salt Lake City, Utah, USA}, journal = {ASME 2019 International Mechanical Engineering Congress and Exposition, November 11-14, 2019 Salt Lake City, Utah, USA}, publisher = {American Society of Mechanical Engineers}, isbn = {978-0-7918-5938-4}, doi = {10.1115/IMECE2019-10294}, language = {en} } @misc{ChaoKruegerFlassigetal., author = {Chao, Chen-Xiang and Kr{\"u}ger, David and Flassig, Peter Michael and Meissner, Bernd}, title = {Verfahren zur Herstellung einer Verzahnung und Verzahnung}, language = {de} } @misc{ChaoKruegerFlassigetal., author = {Chao, Chen-Xiang and Kr{\"u}ger, David and Flassig, Peter Michael and Meissner, Bernd}, title = {Method for manufacturing a toothing and toothing}, language = {en} } @misc{HenkelBestleFlassigetal., author = {Henkel, Clara and Bestle, Dieter and Flassig, Peter and Janke, Christian and Slaby, Michael}, title = {Consideration of balancing within the fan-blisk design process}, series = {GPPS Shanghai25 Technical Paper Proceedings}, journal = {GPPS Shanghai25 Technical Paper Proceedings}, publisher = {Global Power and Propulsion Society (GPPS)}, address = {Zug, Schweiz}, doi = {10.33737/gpps25-tc-017}, pages = {1 -- 9}, abstract = {The design of fan-blisks is a multi-criterion optimisation challenge primarily involving the aerodynamic shape optimisation of blade profiles and subsequent blade balancing, i.e., shifting profiles in axial and circumferential directions to avoid stress hotspots. Although it is already known that blade balancing affects aerodynamic properties, this correlation is often not taken into account, which is why it is usually performed as an independent step after solving the aerodynamic design problem. However, this assumption is questionable because such shifts should be used to control both secondary flow effects and resulting stress. Therefore, the paper proposes problem formulations combining both aspects. Since optimisation requires costly numerical evaluations, machine learning methods are investigated to predict aerodynamic performance and stress constraints more efficiently. This enables a global optimisation process by reducing computational costs. Various different surrogate types are investigated, where stress constraints are formulated either as regression task predicting stress maxima, or as classification problem directly assessing design feasibility.}, language = {en} }