Jan Gade

M.Sc.

Doktorand
Institut für Baustatik und Baudynamik

Kontakt

+49 711 685 66123
E-Mail
Website

Pfaffenwaldring 7
70550 Stuttgart
Deutschland

Fachgebiet

Beteiligt an Teilprojekten, inklusive Position:

A04 Formfindung, Strukturoptimierung und Systemoptimierung, projektbearbeitender Doktorand

Publikationen

2021
1. J. Gade, A. Tkachuk, M. von Scheven, und M. Bischoff, „A continuum-mechanical theory of redundancy in elastostatic structures“, International Journal of Solids and Structures, Bd. 226–227, 2021, doi: 10.1016/j.ijsolstr.2021.01.022.
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  @article{Gade_2021, abstract = {In the present paper, theoretical foundations of redundancy in spatially continuous, elastostatic, and linear representations of structures are derived. Adopting an operator-theoretical perspective, the redundancy operator is introduced, inspired by the concept of redundancy matrices, previously described for spatially discrete representations of structures. Studying symmetry, trace, rank, and spectral properties of this operator as well as revealing the relation to the concept of statical indeterminacy, a continuum-mechanical theory of redundancy is proposed. Here, the notion “continuum-mechanical” refers to the representation being spatially continuous. Apart from the theory itself, the novel outcome is a clear concept providing information on the distribution of statical indeterminacy in space and with respect to different load carrying mechanisms. The theoretical findings are confirmed and illustrated within exemplary rod, plane beam, and plane frame structures. The additional insight into the load carrying behavior may be valuable in numerous applications, including robust design of structures, quantification of imperfection sensitivity, assessment of adaptability, as well as actuator placement and optimized control in adaptive structures.}, author = {Gade, Jan and Tkachuk, Anton and von Scheven, Malte and Bischoff, Manfred}, doi = {10.1016/j.ijsolstr.2021.01.022}, journal = {International Journal of Solids and Structures}, title = {A continuum-mechanical theory of redundancy in elastostatic structures}, volume = {226-227}, year = 2021 }
2020
1. M. Böhm u. a., „Modellierung aktiver Strukturelemente als Erweiterung zum klassischen Workflow der FE-Analyse“, in Baustatik -- Baupraxis 14, in Baustatik -- Baupraxis 14. Universität Stuttgart, 2020.
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  @inproceedings{Boehm2020b, author = {Böhm, Michael and Steffen, Simon and Gade, Jan and Geiger, Florian and Sobek, Werner and Bischoff, Manfred and Sawodny, Oliver}, booktitle = {Baustatik -- Baupraxis 14}, file = {Boehm2020b_Modellierung_aktiver_Strukturelemente_BB14.pdf:..\\pdfs\\Boehm2020b_Modellierung_aktiver_Strukturelemente_BB14.pdf:PDF}, isys_authors = {mboehm, osawodny}, isys_group = {Bausystemtechnik, SFB}, publisher = {Universität Stuttgart}, title = {Modellierung aktiver Strukturelemente als Erweiterung zum klassischen Workflow der FE-Analyse}, year = 2020 }
2. M. Böhm u. a., „Input modeling for active structural elements – extending the established FE-Workflow for modeling of adaptive structures“, in IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM), in IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM). Juli 2020, S. 1595--1600. doi: 10.1109/AIM43001.2020.9158996.
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  @inproceedings{bohm2020input, author = {Böhm, Michael and Wagner, Julia and Steffen, Simon and Gade, Jan and Geiger, Florian and Sobek, Werner and Bischoff, Manfred and Sawodny, Oliver}, booktitle = {IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM)}, doi = {10.1109/AIM43001.2020.9158996}, month = {07}, pages = {1595--1600}, title = {Input modeling for active structural elements – extending the established FE-Workflow for modeling of adaptive structures}, year = 2020 }
3. F. Geiger, J. Gade, M. von Scheven, und M. Bischoff, „Optimal Design of Adaptive Structures vs. Optimal Adaption of Structural Design“, in IFAC-PapersOnLine, in IFAC-PapersOnLine, vol. 53. IFAC World Congress 2020, 11.-17.07.2020, Berlin, Germany, 2020, S. 8363--8369. doi: 10.1016/j.ifacol.2020.12.1604.
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  @inproceedings{geiger2020optimal, abstract = {Taking advantage of adaptivity in the field of civil engineering is an ongoing research topic. Integration of adaptive elements in the load-bearing structure is already well established in many other engineering fields. First investigations promise large material saving potentials also in the field of civil engineering, especially when it comes to high-rise buildings or wide spanned structures like roofs or bridges. In times of emission problems and shortage of materials, the potentials of adaptive civil structures open various new possibilities. In the design and optimization process of adaptive civil structures, we address the differences between classical approaches for passive systems and new practices considering adaptivity. By using a suitable actuator placement, it is possible to manipulate the displacements of the structure as well as the force distribution within the structure. Both material and energy savings can be accomplished with an integrated design of the adaptive structure taking into account the actuation, suitable combination of structural design and actuator placement. For demonstration of the differences in the design process and in the resulting optimized structure, we use a small case study on a truss structure, which is inspired by a high-rise building, and consider static loads.}, author = {Geiger, Florian and Gade, Jan and von Scheven, Malte and Bischoff, Manfred}, doi = {10.1016/j.ifacol.2020.12.1604}, journal = {{IFAC}-{PapersOnLine}}, number = 2, pages = {8363--8369}, publisher = {IFAC World Congress 2020, 11.-17.07.2020, Berlin, Germany}, title = {Optimal Design of Adaptive Structures vs. Optimal Adaption of Structural Design}, volume = 53, year = 2020 }
4. F. Geiger, J. Gade, M. von Scheven, und M. Bischoff, „A Case Study on Design and Optimization of Adaptive Civil Structures“, Frontiers in Built Environment, Bd. 6, Juli 2020, doi: 10.3389/fbuil.2020.00094.
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  @article{geiger2020study, author = {Geiger, Florian and Gade, Jan and von Scheven, Malte and Bischoff, Manfred}, doi = {10.3389/fbuil.2020.00094}, journal = {Frontiers in Built Environment}, month = {07}, publisher = {Frontiers Media {SA}}, title = {A Case Study on Design and Optimization of Adaptive Civil Structures}, url = {https://doi.org/10.3389%2Ffbuil.2020.00094}, volume = 6, year = 2020 }
  Link
  https://doi.org/10.3389%2Ffbuil.2020.00094
5. F. Geiger, J. Gade, M. von Scheven, und M. Bischoff, „Anwendung der Redundanzmatrix bei der Bewertung adaptiver Strukturen“, in Manfred Bischoff, Malte von Scheven, Bastian Oesterle (Hrsg.) Berichte der Fachtagung Baustatik – Baupraxis 14, 23. und 24. März 2020, Universität Stuttgart, in Manfred Bischoff, Malte von Scheven, Bastian Oesterle (Hrsg.) Berichte der Fachtagung Baustatik – Baupraxis 14, 23. und 24. März 2020, Universität Stuttgart. 2020, S. 119–128. doi: 10.18419/opus-10762.
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  @inproceedings{geiger2020anwendung, abstract = {Die Antwort einer Struktur auf Aktuierung wird maßgeblich vom Grad der statischen Unbestimmtheit und deren Verteilung in der Struktur beeinflusst. Die Redundanzmatrix enthält diese Informationen über das Tragwerk. Aus ihr können daher Rückschlüsse für die Aktorplatzierung und für die Bewertung der Aktuierbarkeit von Strukturen gezogen werden. Die Untersuchung eines Beispieltragwerks veranschaulicht einerseits die Einsatzmöglichkeiten der Redundanzmatrix und andererseits das Masseneinsparungspotential, das mithilfe des Einsatzes aktiver Elemente in passiven Strukturen erschlossen werden kann.}, author = {Geiger, Florian and Gade, Jan and {von Scheven}, Malte and Bischoff, Manfred}, booktitle = {Manfred Bischoff, Malte von Scheven, Bastian Oesterle (Hrsg.) Berichte der Fachtagung Baustatik – Baupraxis 14, 23. und 24. März 2020, Universität Stuttgart}, doi = {10.18419/opus-10762}, pages = {119-128}, title = {Anwendung der Redundanzmatrix bei der Bewertung adaptiver Strukturen}, year = 2020 }
2019
1. B. Fröhlich, J. Gade, F. Geiger, M. Bischoff, und P. Eberhard, „Geometric element parameterization and parametric model order reduction in finite element based shape optimization“, Computational Mechanics, Bd. 63, S. 853–868, 2019, doi: 10.1007/s00466-018-1626-1.
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  @article{frohlich2019geometric, abstract = {This contribution proposes a new approach to derive geometrically parameterized, reduced order finite element models. An element formulation for geometrically parameterized finite elements is suggested. The parameterized elements are used to derive models with a parameterized geometry where the parameterized system matrices are expressed in an affine representa- tion. Parametric model order reduction can then be efficiently used to reduce the full order parameterized model to a reduced order parameterized model. The approach shows two beneficial features. First, design studies and shape optimizations can be conducted with parameterized reduced order model of much lower dimension compared to the parameterized, full order model. Second, it is possible to compute sensitivities analytically, and therefore, to avoid the computation of finite differences gradients. The approach is illustrated with two numerical examples. The first example includes a detailed error analysis. The second example is a shape optimization example of an adaptive structure.}, author = {Fröhlich, Benjamin and Gade, Jan and Geiger, Florian and Bischoff, Manfred and Eberhard, Peter}, doi = {10.1007/s00466-018-1626-1}, journal = {Computational Mechanics}, pages = {853-868}, title = {Geometric element parameterization and parametric model order reduction in finite element based shape optimization}, volume = { 63}, year = 2019 }
2018
1. B. Fröhlich, F. Geiger, J. Gade, M. Bischoff, und P. Eberhard, „Model order reduction of coupled, parameterized elastic bodies for shape optimization“, in IUTAM Symposium on Model Order Reduction of Coupled Systems, May 22–25, 2018, Stuttgart, in IUTAM Symposium on Model Order Reduction of Coupled Systems, May 22–25, 2018, Stuttgart. 2018, S. 151--163. doi: 10.1007/978-3-030-21013-7_11.
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  @inproceedings{frohlich2018model, abstract = {In this contribution, coupled, parameterized second order systems are considered where the coupled, parameterized system is derived from the assembly of several parameterized component models. Two approaches for the Parametric Model Order Reduction of such coupled systems are presented and compared in a reduced order shape optimization example. In the first approach, the coupled, parameterized system is derived by coupling the parameterized, full order component models. Then, Parametric Model Order Reduction is executed for the coupled system. In the second approach, the parameterized, component models are first reduced independently of their actual mounting situation. Afterwards, the parameterized, reduced order component models are coupled to derive the parameterized, reduced order system model. It is shown that the first approach yields smaller parameterized, reduced order system models. However, the second approach allows to reuse and to recombine the parameterized, reduced order component models arbitrarily. It therefore introduces more flexibility in the modeling process, enabling for example a toolbox based optimization with parameterized, reduced order models.}, author = {Fröhlich, Benjamin and Geiger, Florian and Gade, Jan and Bischoff, Manfred and Eberhard, Peter}, booktitle = {IUTAM Symposium on Model Order Reduction of Coupled Systems, May 22–25, 2018, Stuttgart}, doi = {10.1007/978-3-030-21013-7_11}, pages = {151--163}, title = {Model order reduction of coupled, parameterized elastic bodies for shape optimization}, year = 2018 }
2. J. Gade, R. Kemmler, M. Drass, und J. Schneider, „Enhancement of a meso-scale material model for nonlinear elastic finite element computations of plain-woven fabric membrane structures“, Engineering Structures, Bd. 177, S. 668–681, 2018, doi: 10.1016/j.engstruct.2018.04.039.
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  @article{gade2018enhancement, abstract = {Due to their structure of crossed yarns embedded in coating, woven fabric membranes are characterised by a highly nonlinear stress-strain behaviour. In order to determine an accurate structural response of membrane structures, a suitable description of the material behaviour is required. Typical phenomenological material models like linear-elastic orthotropic models only allow a limited determination of the real material behaviour. A more accurate approach becomes evident by focusing on the meso-scale, which reveals an inhomogeneous however periodic structure of woven fabrics. The present work focuses on an established meso-scale model. The novelty of this work is an enhancement of this model with regard to the coating stiffness. By performing an inverse process of parameter identification using a state-of-the-art Levenberg-Marquardt algorithm, a close fit w.r.t. measured data from a common biaxial test is shown and compared to results applying established models. Subsequently, the enhanced meso-scale model is processed into a multi-scale model and is implemented as a material law into a finite element program. Within finite element analyses of an exemplary full scale membrane structure by using the implemented material model as well as by using established material models, the results are compared and discussed.}, author = {Gade, Jan and Kemmler, Roman and Drass, Michael and Schneider, Jens}, doi = {10.1016/j.engstruct.2018.04.039}, journal = {Engineering Structures}, pages = {668-681}, title = {Enhancement of a meso-scale material model for nonlinear elastic finite element computations of plain-woven fabric membrane structures}, volume = { 177}, year = 2018 }
3. J. Wagner u. a., „On steady-state disturbance compensability for actuator placement in adaptive structures“, at - Automatisierungstechnik, 2018, doi: 10.1515/auto-2017-0099.
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  @article{Wagner2018, author = {Wagner, Julia and Gade, Jan and Geiger, Florian and Heidingsfeld, Michael and Böhm, Michael and von Scheven, Malte and Bischoff, Manfred and Sawodny, Oliver}, doi = {10.1515/auto-2017-0099}, journal = {at - Automatisierungstechnik}, title = {On steady-state disturbance compensability for actuator placement in adaptive structures}, year = 2018 }
2017
1. J. Gade, M. Bischoff, und R. Kemmler, „Advanced approaches for analysis and form finding of membrane structures with finite elements, Part I: Comparison of a microstructural model with an anisotropically hyperelastic model gained by inverse problems of parameter identiﬁcation“, in K. Bletzinger, E. Onate, B. Kröplin (Eds.) Proceedings of VIII International Conference on Textile Composites and Inflatable Structures (STRUCTURAL MEMBRANES 2017), 9-11 October 2017. Munich, Germany, in K. Bletzinger, E. Onate, B. Kröplin (Eds.) Proceedings of VIII International Conference on Textile Composites and Inflatable Structures (STRUCTURAL MEMBRANES 2017), 9-11 October 2017. Munich, Germany. 2017.
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  @inproceedings{gade2020advanced, abstract = {Part I deals with material modelling of woven fabric membranes. Due to their structure of crossed yarns embedded in coating, woven fabric membranes are characterised by a highly nonlinear stress-strain behaviour. In order to determine an accurate structural response of membrane structures, a suitable description of the material behaviour is required. A linear elastic orthotropic model approach, which is current practice, only allows a relative coarse approximation of the material behaviour. The present work focuses on two different material approaches: A first approach becomes evident by focusing on the meso-scale. The inhomogeneous, however periodic structure of woven fabrics motivates for microstructural modelling. An established microstructural model is considered and enhanced with regard to the coating stiffness. Secondly, an anisotropic hyperelastic material model for woven fabric membranes is considered. By performing inverse processes of parameter identification, fits of the two different material models w.r.t. measured data from a common biaxial test are shown. The results of the inversely parametrised material models are compared and discussed.}, author = {Gade, Jan and Bischoff, Manfred and Kemmler, Roman}, booktitle = {K. Bletzinger, E. Onate, B. Kröplin (Eds.) Proceedings of VIII International Conference on Textile Composites and Inflatable Structures (STRUCTURAL MEMBRANES 2017), 9-11 October 2017. Munich, Germany}, title = {Advanced approaches for analysis and form finding of membrane structures with finite elements, Part I: Comparison of a microstructural model with an anisotropically hyperelastic model gained by inverse problems of parameter identiﬁcation}, year = 2017 }
2. R. Kemmler und J. Gade, „Erweiterte Ansätze zur Formfindung und Analyse von Membrantragwerken, Teil I: Parameteridentiﬁkation eines Mikrostrukturmodells für Gewebemembranmaterialien durch Lösung eines inversen Problems“, in G. Meschke et al. (Hrsg.) Berichte der Fachtagung Baustatik – Baupraxis 13, 20. und 21. März 2017, Bochum, in G. Meschke et al. (Hrsg.) Berichte der Fachtagung Baustatik – Baupraxis 13, 20. und 21. März 2017, Bochum. 2017.
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  @inproceedings{kemmler2017erweiterte, abstract = {Teil I thematisiert die Materialmodellierung von Gewebewerkstoffen. Gewebemembranen weisen aufgrund ihres herstellungsbedingten Aufbaus aus gekreuzten Fäden, die in eine schützende Beschichtung eingebettet sind, ein ausgeprägt nichtlineares Spannungs-Dehnungsverhalten auf. Mit üblicherweise verwendeten phänomenologischen Materialmodellen, wie linear-elastischen, orthotropen Modellen, kann das komplexe Verformungsverhalten lediglich stark vereinfacht abgebildet werden. Eine adäquatere Modellbildung gelingt stattdessen unter Heranziehung des strukturierten Aufbaus von Geweben auf der Mesoebene. Im Rahmen des vorliegenden Beitrags wird ein bereits in der Literatur verwendetes Mikrostrukturmodell herangezogen, erweitert und mittels Lösung eines inversen Problems der Parameteridentifikation auf Messdaten eines biaxialen Zugversuchs angepasst.}, author = {Kemmler, Roman and Gade, Jan}, booktitle = {G. Meschke et al. (Hrsg.) Berichte der Fachtagung Baustatik – Baupraxis 13, 20. und 21. März 2017, Bochum}, title = {Erweiterte Ansätze zur Formfindung und Analyse von Membrantragwerken, Teil I: Parameteridentiﬁkation eines Mikrostrukturmodells für Gewebemembranmaterialien durch Lösung eines inversen Problems}, year = 2017 }
2016
1. J. Gade, „Einbettung eines kinematischen Mikrostrukturmodells zur Beschreibung der Werkstoﬀeigenschaften von Gewebemembranen in Finite-Elemente-Analysen“, Masterarbeit. Fachgebiet Statik, Institut für Statik und Konstruktion, Technische Universität Darmstadt, 2016.
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  @mastersthesis{gade2016einbettung, abstract = { Membranen aus Gewebewerkstoffen weisen aufgrund ihres herstellungsbedingten Aufbaus aus gekreuzten Fäden, die in eine schützende Beschichtung eingebettet sind, ein ausgeprägt nichtlineares Spannungs-Dehnungsverhalten auf. Eine realitätsnahe Berechnung von Membranstrukturen erfordert daher u.a. eine zielsichere Beschreibung des Materialverhaltens. Mit üblicherweise verwendeten phänomenologischen Materialmodellen, wie linear- elastischen, orthotropen Modellen, kann das komplexe Verformungsverhalten lediglich stark vereinfacht abgebildet werden. Eine adäquatere Modellbildung gelingt stattdessen unter Heranziehung des strukturierten Aufbaus von Geweben auf der Mesoskala. Im Rahmen der vorliegenden Arbeit wird ein bereits in der Literatur verwendetes Mikrostrukturmodell herangezogen, erweitert und mittels Lösung eines inversen Problems der Parameteridentifikation auf Messdaten eines biaxialen Zugversuchs angepasst. Dieses wird in Form eines Mehrskalenmodells aufbereitet und anschließend als Materialgesetz in ein Finite-Elemente-Programm implementiert. Die Validierung des Modells durch Nachrechnung des ihm zugrundeliegenden Versuchs zeigt auf, dass das Modell zur Beschreibung des Kraft-Verformungsverhaltens von Gewebemembranen gut geeignet ist. In Vergleichsberechnungen werden anhand zweier beispielhafter Membranstrukturen die Ergebnisse unter Einsatz des implementierten Materialmodells den Resultaten unter Verwendung üblicher Materialmodelle gegenübergestellt und diskutiert.}, author = {Gade, Jan}, publisher = {Masterarbeit. Fachgebiet Statik, Institut für Statik und Konstruktion, Technische Universität Darmstadt}, title = {Einbettung eines kinematischen Mikrostrukturmodells zur Beschreibung der Werkstoﬀeigenschaften von Gewebemembranen in Finite-Elemente-Analysen}, year = 2016 }
2013
1. J. Gade, „Modellbildung für die Rahmenecke integraler Brücken mithilfe der Methode der Finiten Elemente“, Bachelorarbeit. Fachgebiet Massivbau, Institut für konstruktiven Ingenieurbau, Universität Kassel, 2013.
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  @mastersthesis{gade2013modellbildung, author = {Gade, Jan}, publisher = {Bachelorarbeit. Fachgebiet Massivbau, Institut für konstruktiven Ingenieurbau, Universität Kassel}, title = {Modellbildung für die Rahmenecke integraler Brücken mithilfe der Methode der Finiten Elemente}, year = 2013 }

Akademische Ausbildung mit Abschluss

Betriebswirtschaftslehre (2008-2011), Bachelorstudium mit Vertiefungsrichtung Management & Marketing im Hauptstudium, Philipps-Universität Marburg, Abschluss: Bachelor of Science (B.Sc.)

Bauingenieurwesen (2009-2013), Bachelorstudium mit Vertiefungsrichtung Konstruktiver Ingenieurbau im Hauptstudium, Universität Kassel, Abschluss: Bachelor of Science (B.Sc.)

Bauingenieurwesen (2013-2016), Masterstudium mit Vertiefungsrichtungen Statik, Baumechanik, Stahlbau, Technische Universität Darmstadt, Abschluss: Master of Science (M.Sc.)