Session Details
MS02-1: Adaptive Structures: Theory, Modelling, Simulation and Evaluation (Ganzes Minisymposium anzeigen)
Wednesday, 11. October 2017; 10:30 - 12:30 Uhr in Raum 7.22
Sitzungsleitung: Florian Geiger
10:30
Gramian-Based Actuator Placement for Static Load Compensation in Adaptive Structures (Keynote)
Julia Wagner (University of Stuttgart), Michael Heidingsfeld (University of Stuttgart), Michael Böhm (University of Stuttgart), Oliver Sawodny (University of Stuttgart)
Kurzfassung:
The compensation of static loads aims at reducing stresses or displacements by applying energy to an adaptive structure. The performance in static adaption significantly depends on the location of the actuators. We present a method for optimal actuator placement regarding static adaption using a Gramian-based cost function. The method is demonstrated by means of a numerical model of an adaptive truss structure. Results indicate the method’s effectiveness to promote actuator placement.
Gramian-Based Actuator Placement for Static Load Compensation in Adaptive Structures (Keynote)
Julia Wagner (University of Stuttgart), Michael Heidingsfeld (University of Stuttgart), Michael Böhm (University of Stuttgart), Oliver Sawodny (University of Stuttgart)
Kurzfassung:
The compensation of static loads aims at reducing stresses or displacements by applying energy to an adaptive structure. The performance in static adaption significantly depends on the location of the actuators. We present a method for optimal actuator placement regarding static adaption using a Gramian-based cost function. The method is demonstrated by means of a numerical model of an adaptive truss structure. Results indicate the method’s effectiveness to promote actuator placement.
11:10
The implementation of an adaptive high-rise building
Stefanie Weidner (University of Stuttgart), Paula-Lie Sternberg (University of Stuttgart), Werner Sobek (University of Stuttgart)
Kurzfassung:
High-rises could be one solution for the future of urban planning. However, due to the increase of global population and the limits of available resources, new technologies become necessary. The collaborative research centre at the University of Stuttgart copes with these topics and will realize an adaptive high-rise building within the next few years. This project will be an experimental building with multiple research opportunities in the fields of structural engineering, building physics, system dynamics, architecture and many more.
The implementation of an adaptive high-rise building
Stefanie Weidner (University of Stuttgart), Paula-Lie Sternberg (University of Stuttgart), Werner Sobek (University of Stuttgart)
Kurzfassung:
High-rises could be one solution for the future of urban planning. However, due to the increase of global population and the limits of available resources, new technologies become necessary. The collaborative research centre at the University of Stuttgart copes with these topics and will realize an adaptive high-rise building within the next few years. This project will be an experimental building with multiple research opportunities in the fields of structural engineering, building physics, system dynamics, architecture and many more.
11:30
Realization of Adaptive Prestressing
Daniel Steiner (University of Duisburg-Essen), Martina Schnellenbach-Held (University of Duisburg-Essen)
Kurzfassung:
Adaptive Prestressing is based on the conventional passive design principle of prestressed concrete combined with active self-adjustment of structures. For realization of these systems a closed-loop control is developed utilizing Artificial Intelligence techniques like Fuzzy Logic, expert knowledge and machine learning processes. In the context of a feasibility study experiments on two prototypes – an aluminium truss and a concrete T-beam – are conducted to exhibit applicability and potentials.
Realization of Adaptive Prestressing
Daniel Steiner (University of Duisburg-Essen), Martina Schnellenbach-Held (University of Duisburg-Essen)
Kurzfassung:
Adaptive Prestressing is based on the conventional passive design principle of prestressed concrete combined with active self-adjustment of structures. For realization of these systems a closed-loop control is developed utilizing Artificial Intelligence techniques like Fuzzy Logic, expert knowledge and machine learning processes. In the context of a feasibility study experiments on two prototypes – an aluminium truss and a concrete T-beam – are conducted to exhibit applicability and potentials.
11:50
Variable filter radii for Vertex Morphing based design of adaptive structures
Armin Geiser (Technical University of Munich), Roland Wüchner (Technical University of Munich), Kai-Uwe Bletzinger (Technical University of Munich)
Kurzfassung:
Most optimization tasks on adaptive structures focus on the optimal actuator/sensor placement. Also, the shape of the controlled structure plays an important role for its efficiency. The initial applications of Vertex Morphing, a node based shape optimization method, made use of a single filter radius. This contribution will assess the effect of varying filter radii towards a better control of the shape, whereas the rich design space given with the Vertex Morphing method shall be maintained.
Variable filter radii for Vertex Morphing based design of adaptive structures
Armin Geiser (Technical University of Munich), Roland Wüchner (Technical University of Munich), Kai-Uwe Bletzinger (Technical University of Munich)
Kurzfassung:
Most optimization tasks on adaptive structures focus on the optimal actuator/sensor placement. Also, the shape of the controlled structure plays an important role for its efficiency. The initial applications of Vertex Morphing, a node based shape optimization method, made use of a single filter radius. This contribution will assess the effect of varying filter radii towards a better control of the shape, whereas the rich design space given with the Vertex Morphing method shall be maintained.