Session Details
MS12-2: Multidisciplinary and Structural Design Optimization (Ganzes Minisymposium anzeigen)
Friday, 13. October 2017; 08:30 - 10:30 Uhr in Raum 7.12
Sitzungsleitung: Erich Wehrle
08:30
Advanced Optimization Methods for CFRP Components in the Motorcycle Industry
Martin Perterer (KTM Technologies), Michael Tischer (KTM Technologies), Mark Hölzl (KTM Technologies)
Kurzfassung:
Carbon fiber reinforced plastics (CFRP) are increasingly used in the motorcycle industry due to their good weight specific mechanical properties. Complex geometries, mechanical requirements as well as cost issues and manufacturing influences are the main design challenges here. Therefore, advanced optimization techniques have been developed for CFRP components in order to find an optimum between costs, weight and manufacturing robustness. This approach is shown using selected case studies.
Advanced Optimization Methods for CFRP Components in the Motorcycle Industry
Martin Perterer (KTM Technologies), Michael Tischer (KTM Technologies), Mark Hölzl (KTM Technologies)
Kurzfassung:
Carbon fiber reinforced plastics (CFRP) are increasingly used in the motorcycle industry due to their good weight specific mechanical properties. Complex geometries, mechanical requirements as well as cost issues and manufacturing influences are the main design challenges here. Therefore, advanced optimization techniques have been developed for CFRP components in order to find an optimum between costs, weight and manufacturing robustness. This approach is shown using selected case studies.
08:50
Optimization of topology and shape, combining phase field modelling and discrete stochastic algorithms
Alexander Keller (Karlsruhe Institute of Technology (KIT)), Ingo Münch (Karlsruhe Institute of Technology (KIT)), Werner Wagner (Karlsruhe Institute of Technology (KIT))
Kurzfassung:
For the design of frame structures in civil engineering we are interested in an approach to combine topology and shape optimization. We use a phase field model to generate topology as design concept first. However, it is not possible to estimate the overall fitness of obtained topologies concerning more complex criteria required in civil engineering. Therefore, as a second step, shape optimization with metaheuristic methods considering the normative constraints is performed.
Optimization of topology and shape, combining phase field modelling and discrete stochastic algorithms
Alexander Keller (Karlsruhe Institute of Technology (KIT)), Ingo Münch (Karlsruhe Institute of Technology (KIT)), Werner Wagner (Karlsruhe Institute of Technology (KIT))
Kurzfassung:
For the design of frame structures in civil engineering we are interested in an approach to combine topology and shape optimization. We use a phase field model to generate topology as design concept first. However, it is not possible to estimate the overall fitness of obtained topologies concerning more complex criteria required in civil engineering. Therefore, as a second step, shape optimization with metaheuristic methods considering the normative constraints is performed.
09:10
Shape optimization with application to inverse form finding and the use of mesh adaptivity
Michael Caspari (Friedrich-Alexander University of Erlangen-Nürnberg), Philipp Landkammer (Friedrich-Alexander University of Erlangen-Nürnberg), Paul Steinmann (Friedrich-Alexander University of Erlangen-Nürnberg)
Kurzfassung:
The aim of the novel inverse form finding approach is to determine the optimized workpiece geometry to its given target geometry after a forming process. During the optimization procedure, differences between the computed and the target spatial configuration have to be minimized. Material nodal positions act as design variables. The procedure is applied to a notch stamping process. As a special feature, mesh adaptivity is considered within the iteratively performed forming simulation.
Shape optimization with application to inverse form finding and the use of mesh adaptivity
Michael Caspari (Friedrich-Alexander University of Erlangen-Nürnberg), Philipp Landkammer (Friedrich-Alexander University of Erlangen-Nürnberg), Paul Steinmann (Friedrich-Alexander University of Erlangen-Nürnberg)
Kurzfassung:
The aim of the novel inverse form finding approach is to determine the optimized workpiece geometry to its given target geometry after a forming process. During the optimization procedure, differences between the computed and the target spatial configuration have to be minimized. Material nodal positions act as design variables. The procedure is applied to a notch stamping process. As a special feature, mesh adaptivity is considered within the iteratively performed forming simulation.
09:30
Determination of optimal damping for passive control of vibration based on the design of limit cycles
Rafael A. Rojas (Free University of Bozen-Bolzano), Erich Wehrle (Free University of Bozen-Bolzano), Renato Vidoni (Free University of Bozen-Bolzano)
Kurzfassung:
The optimal design of passive vibration control is a challenge for both application and research. These design methods are based on of structure optimization and models are typically solved in frequency domain. This work explores the benefits of introducing state-space methods on passive control. We propose an optimization approach based on the design of the limit cycles of mechanical systems under periodic forces. The method is applied to an example of damping optimization.
Determination of optimal damping for passive control of vibration based on the design of limit cycles
Rafael A. Rojas (Free University of Bozen-Bolzano), Erich Wehrle (Free University of Bozen-Bolzano), Renato Vidoni (Free University of Bozen-Bolzano)
Kurzfassung:
The optimal design of passive vibration control is a challenge for both application and research. These design methods are based on of structure optimization and models are typically solved in frequency domain. This work explores the benefits of introducing state-space methods on passive control. We propose an optimization approach based on the design of the limit cycles of mechanical systems under periodic forces. The method is applied to an example of damping optimization.
09:50
Sensitivity Analysis for Pedestrian Lower Leg Impact
Stefano Chiapedi (Technical University of Munich), Andreas Koukal (AUDI AG), Fabian Duddeck (Technical University of Munich)
Kurzfassung:
Pedestrian safety has gathered a lot of attention in recent years among academic and industrial researchers, promoted by the quick evolution of regulation and consumer test requirements. The current work presents the challenges involved in pedestrian lower leg impact test and attempts to deal with them in the field of structural optimization. A sensitivity analysis of the FlexPLI injury criteria is carried out, as motivation for the development of a parametric simplified vehicle front-end model.
Sensitivity Analysis for Pedestrian Lower Leg Impact
Stefano Chiapedi (Technical University of Munich), Andreas Koukal (AUDI AG), Fabian Duddeck (Technical University of Munich)
Kurzfassung:
Pedestrian safety has gathered a lot of attention in recent years among academic and industrial researchers, promoted by the quick evolution of regulation and consumer test requirements. The current work presents the challenges involved in pedestrian lower leg impact test and attempts to deal with them in the field of structural optimization. A sensitivity analysis of the FlexPLI injury criteria is carried out, as motivation for the development of a parametric simplified vehicle front-end model.