Buy article PDF
Instant access to
the full article PDF
for the next 48 hrs
US$ 35
|
Structural Engineering and Mechanics Volume 55, Number 5, September10 2015, pages 901-911 DOI: http://dx.doi.org/10.12989/sem.2015.55.5.901 |
|
|
|
Generation of OC and MMA topology optimizer by using accelerating design variables |
||
Dongkyu Lee, Nguyen Hong Chan and Soomi Shin
|
||
| 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. | ||
| Key Words | ||
| acceleration method; OC; MMA; MATLAB; topology optimization; convergence | ||
| Address | ||
| Dongkyu Lee and Nguyen Hong Chan: Department of Architectural Engineering, Sejong University, Seoul, 143-747, Korea Soomi Shin: Research Institute of Industrial Technology, Pusan National University, Busan, 609-735, Korea | ||