Journal
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
Volume 51, Issue 3, Pages 631-643Publisher
SPRINGER
DOI: 10.1007/s00158-014-1174-z
Keywords
Level-set method; Topology optimization; Constraints; Sequential linear programming
Categories
Funding
- Engineering and Physical Sciences Research Council [EP/M002322/1]
- Engineering and Physical Sciences Research Council [EP/M002322/1] Funding Source: researchfish
- EPSRC [EP/M002322/1] Funding Source: UKRI
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This paper introduces an approach to level-set topology optimization that can handle multiple constraints and simultaneously optimize non-level-set design variables. The key features of the new method are discretized boundary integrals to estimate function changes and the formulation of an optimization sub-problem to attain the velocity function. The sub-problem is solved using sequential linear programming (SLP) and the new method is called the SLP level-set method. The new approach is developed in the context of the Hamilton-Jacobi type level-set method, where shape derivatives are employed to optimize a structure represented by an implicit level-set function. This approach is sometimes referred to as the conventional level-set method. The SLP level-set method is demonstrated via a range of problems that include volume, compliance, eigenvalue and displacement constraints and simultaneous optimization of non-level-set design variables.
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