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Structural and Multidisciplinary Optimization

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30.10.2015 | RESEARCH PAPER

Minimizing the vibrational response of a lightweight building by topology and volume optimization of a base plate for excitatory machinery

verfasst von: Niels Olhoff, Bin Niu

Erschienen in: Structural and Multidisciplinary Optimization | Ausgabe 3/2016

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Abstract

This paper deals with the problem of minimizing the vibration amplitude response of a lightweight building from rotating machinery by extended topology optimization of a flexible, single material base plate for the machinery. A modular lightweight building is modeled and used for the analysis of the vibrational response. The excitation frequency is assumed to be given, and the design objective is chosen as minimization of the product of the frequency response of the building transmitted from the machinery base plate, and the volume of solid material used in the design of the base plate. The design and performance of optimized machinery base plates are illustrated and discussed by means of numerical example problems with different excitation frequencies, different levels of Rayleigh damping, and different installation positions of the base plate with the machinery in the building. Finally, the satisfaction of the KKT (Karush-Kuhn-Tucker) necessary condition for optimality is investigated for one of the numerically optimized designs.

Vorheriger Artikel Structural design using multi-objective metaheuristics. Comparative study and application to a real-world problem

Nächster Artikel Matrix-free aerostructural optimization of aircraft wings

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Titel: Minimizing the vibrational response of a lightweight building by topology and volume optimization of a base plate for excitatory machinery
verfasst von: Niels Olhoff
Bin Niu
Publikationsdatum: 30.10.2015
Verlag: Springer Berlin Heidelberg
Erschienen in: Structural and Multidisciplinary Optimization / Ausgabe 3/2016
Print ISSN: 1615-147X
Elektronische ISSN: 1615-1488
DOI: https://doi.org/10.1007/s00158-015-1345-6

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