Journal
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
Volume 59, Issue 4, Pages 1385-1400Publisher
SPRINGER
DOI: 10.1007/s00158-019-02209-7
Keywords
Topology optimization; OpenMDAO; Solid Isotropic Materials with Penalization (SIMP); Level-set Topology Optimization (LSTO)
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Funding
- NASA Transformational Tools and Technologies Project [NNX15AU22A]
- NASA [797696, NNX15AU22A] Funding Source: Federal RePORTER
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Recently, topology optimization has drawn interest from both industry and academia as the ideal design method for additive manufacturing. Topology optimization, however, has a high entry barrier as it requires substantial expertise and development effort. The typical numerical methods for topology optimization are tightly coupled with the corresponding computational mechanics method such as a finite element method and the algorithms are intrusive, requiring an extensive understanding. This paper presents a modular paradigm for topology optimization using OpenMDAO, an open-source computational framework for multidisciplinary design optimization. This provides more accessible topology optimization algorithms that can be non-intrusively modified and easily understood, making them suitable as educational and research tools. This also opens up further opportunities to explore topology optimization for multidisciplinary design problems. Two widely used topology optimization methodsthe density-based and level-set methodsare formulated in this modular paradigm. It is demonstrated that the modular paradigm enhances the flexibility of the architecture, which is essential for extensibility.
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