A concept of the independent-continuous topological variable is proposed to establish its corresponding smooth model of structural
topological optimization. The method can overcome difficulties that are encountered in conventional models and algorithms
for the optimization of the structural topology. Its application to truss topological optimization with stress and displacement
constraints is satisfactory, with convergence faster than that of sectional optimizations.
Key words structural topological optimization - smooth model - adaptive algorithm - truss structure - independent-continuous variable - filter function
The project supported by State Key Laboratory of Structural Analyses of Industrial Equipment