24.08.2020 | Educational Paper
A new generation 99 line Matlab code for compliance topology optimization and its extension to 3D
Erschienen in: Structural and Multidisciplinary Optimization | Ausgabe 4/2020
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Abstract
top99neo
, shows speedups from 2.55 to 5.5 times compared to the well-known top88
code of Andreassen et al. (Struct Multidiscip Optim 43(1):1–16, 2011). The 3D version, named top3D125
, is the most compact and efficient Matlab implementation for 3D TO to date, showing a speedup of 1.9 times compared to the code of Amir et al. (Struct Multidiscip Optim 49(5):815–829, 2014), on a discretization with 2.2 ⋅ 105 elements. For both codes, improvements are due to much more efficient procedures for the assembly and implementation of filters and shortcuts in the design update step. The use of an acceleration strategy, yielding major cuts in the overall computational time, is also discussed, stressing its easy integration within the basic codes.