Manufacturing constraints in parameter-free sensitivity-based shape optimization

Schmitt O, Friederich J, Steinmann P (2014)

Publication Language: English

Publication Type: Conference contribution

Publication year: 2014

Publisher: National Technical University of Athens

Edited Volumes: OPT-i 2014 - 1st International Conference on Engineering and Applied Sciences Optimization, Proceedings

Book Volume: -

Pages Range: 2532-2542

Edition: -

Conference Proceedings Title: Proceedings of 1st International Conference on Engineering and Applied Sciences Optimization

Event location: Kos Island, Greece GR

ISBN: 978-960999946-5

Abstract

Structural shape optimization has become an important tool in engineering when it comes to improving components with respect to a given cost function. However, in many applications the designer has to ensure that the optimized part is still manufacturable. This work introduces two approaches on how to handle manufacturing constraints in parameter- free sensitivity-based shape optimization. In the so-called implicit method the set of design nodes is split into two groups of optimization nodes and dependent nodes. The optimization nodes are then handled as design nodes, whereas the dependent nodes are coupled to the optimization nodes in such a way that the manufacturing constraint is fulfilled. By that procedure no additional constraints have to be appended to the optimization problem. When no dependency can be determined additional equality and inequality constraints have to be formulated in terms of the coordinates of the design nodes. In this case the formulation of manufacturing constraints may lead to a large number of inequalities. Since most optimization algorithms are not able to handle highly restricted problems the use of aggregation formulations is investigated.

Authors with CRIS profile

Oliver Schmitt Lehrstuhl für Technische Mechanik Jan Friederich Lehrstuhl für Technische Mechanik Paul Steinmann Lehrstuhl für Technische Mechanik

How to cite

APA:

Schmitt, O., Friederich, J., & Steinmann, P. (2014). Manufacturing constraints in parameter-free sensitivity-based shape optimization. In Proceedings of 1st International Conference on Engineering and Applied Sciences Optimization (pp. 2532-2542). Kos Island, Greece, GR: National Technical University of Athens.

MLA:

Schmitt, Oliver, Jan Friederich, and Paul Steinmann. "Manufacturing constraints in parameter-free sensitivity-based shape optimization." Proceedings of the 1st International Conference on Engineering and Applied Sciences Optimization (OPT-i), Kos Island, Greece National Technical University of Athens, 2014. 2532-2542.

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