engleski

Optimization of Bus Frame Design

In this paper finite element (FE) method was used for optimization process of the airport bus frame design type Eurobus AE 141 A. FE model was determined and boundary conditions as well. Optimization with the objective of decreasing mass was conducted for maximal static load condition. Thicknesses of tube walls are chosen as design parameters because by changing parameters from the inner side of tubes, manufacturing could be handled without changing production tools. At the end of the continuous optimization, a discrete optimization had to be done manually. Such a calculation reduced eigen mass of FE model of 3, 2 t before optimization by 374 kg. Further optimization with regard to design limits was possible, but was not carried out because of increased assortment of tube cross sections.

FEM; optimisation; bus frame; design

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