Evolutionary Structural Optimization Based on Vibration Criteria 2001-01-3962
A simple evolutionary procedure is proposed for shape and layout optimization of structures with frequency constraints. The structure is modelled with a fine mesh of finite elements plus boundary conditions. It is considered the following hypothesis: small displacements and strains, homogenous and isotropic material. After each eigenvalue solution, a sensitivity number is determined for each element of the structure, so based in this parameter, a number of the elements are removed from the structure. The frequencies of the resulting structure will be shifted towards a desired direction. Several examples are presented to illustrate the options of changing structural frequencies such as: maximizing one or more frequencies simultaneously, maximizing the gap of arbitrary two frequencies
Citation: da Silva, J., Pavanello, R., and Ferreira, J., "Evolutionary Structural Optimization Based on Vibration Criteria," SAE Technical Paper 2001-01-3962, 2001, https://doi.org/10.4271/2001-01-3962. Download Citation
Author(s):
Julio Antonio Beltrami da Silva, Renato Pavanello, Janito Vaqueiro Ferreira
Affiliated:
State University of Campinas – UNICAMP
Pages: 8
Event:
International Mobility Technology Conference and Exhibit
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Optimization
Vibration
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