Structural Engineering and Mechanics

Techno-Press (테크노프레스)
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Generation of OC and MMA topology optimizer by using accelerating design variables

  • Lee, Dongkyu (Department of Architectural Engineering, Sejong University) ;
  • Nguyen, Hong Chan (Department of Architectural Engineering, Sejong University) ;
  • Shin, Soomi (Research Institute of Industrial Technology, Pusan National University)
  • Received : 2014.07.09
  • Accepted : 2015.02.24
  • Published : 2015.09.10
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Abstract

The goal of this study is to investigate computational convergence of optimal solutions, with respect to optimality criteria (OC) method and methods of moving asymptotes (MMA) as optimization model for non-linear programming of material topology optimization using an acceleration method that makes design variables rapidly move toward almost 0 and 1 values. 99 line topology optimization MATLAB code uses loop vectorization and memory pre-allocation as properly exploiting the strengths of MATLAB and moves portions of code out of the optimization loop so that they are only executed once as restructuring the program. Numerical examples of a simple beam under a lateral load and a given material density limitation provide merits and demerits of the present OC and MMA for 99 line topology optimization code of continuous material topology optimization design.

Keywords

Acknowledgement

Supported by : National Research Foundation of Korea (NRF)

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