Truss’ topology and shape optimization by genetic algorithms

Lietuvos Matematikos Rinkinys

PauliusRagauskas¹  DmitrijŠešok¹ 

[1] Vilnius Gediminas Technical University;

关键词: global optimization;    finite element method;    genetic algorithms;    topology optimization of truss systems;    shape optimization of truss systems;   

DOI  :  10.15388/LMR.2007.24249

来源: DOAJ

【 摘 要 】

In the paper the global optimization problem of truss systems is studied.  The genetic algorithms are employed for the optimization. As the objective function the structure mass is treated; the constraints include equilibrium, local stability and other requirements.  All the truss system characteristics needed for genetic algorithm are obtained via finite element solution. Topology optimization of truss system is performed using original modified genetic algorithm, while the shape optimization – using ordinary genetic algorithm. Numerical solutions are presented. The obtained solutions are compared with global extremes obtained using full search algorithm.  All the numerical examples are solved using original software.

【 授权许可】

Unknown