Enhancing Efficiency of Two Level Multipoint Approximation Method byan Efficient Move Limit Approach

摘要

This paper presents an improvement to the efficiency of Two Level MultipointrnApproximation Method (TMA) for structure optimization by means of move limits definition. Arnmove limit strategy, which was initially presented by Bloebaum, C. L., can efficiently enhancernrobustness of the method especially for the achievement of gauge (least) values of design variablesrnin truss structures. Method’s capability has been exploited for assigning a different move limit torneach design variable based upon statistical distribution of effectiveness coefficients. This paperrnsuggests an improved version of TMA as well as an improved definition of highest value of movernlimit for least heuristic definition of move limits.