During the last 20 years, structural optimization has become one of the most important topics of engineering applications. Design optimization of structure has been an interesting area of research in the field of engineering design for its ability to short the design cycle and to enhance product quality. Significant research activity has occurred in the area of structural optimization in the la...

0045-7949/$ see front matter Crown Copyright 2 doi:10.1016/j.compstruc.2010.11.003 ⇑ Corresponding author. Tel.: +82 32 860 7310; fax E-mail addresses: [email protected], jhp@h [email protected] (H.G. Beom), [email protected] (Y. W (S. Lin), [email protected] (B. Liu). This paper proposes an evolutionary accelerated computational level set algorithm for structure topology optimization. It integ...

1. Abstract A novel strategy for handling the molding constraint for cast parts is presented. In a first step, a simple projection method for the velocity field is applied. If the optimized shape violates thickness constraints, this projection method is no longer sufficient and a general molding constraint is applied at the same time with thickness control. We apply an augmented Lagrangian meth...

We intend to propose a framework to handle the problem of mesh deformation in the context of shape optimization. The main idea is to combine the level set method with meshing tools specialized to deal with implicitly-defined geometries. The proposed method is then as well a topology optimization as a geometric optimization method.

Large-scale constrained convex optimization problems arise in several application 4 domains. First-order methods are good candidates to tackle such problems due to their low iteration 5 complexity and memory requirement. The level-set framework extends the applicability of first-order 6 methods to tackle problems with complicated convex objectives and constraint sets. Current methods 7 based on...

 This paper presents an optimal budget distribution method for low power circuit design using transistor sizing. The algorithm distributes the available budget on the transistors optimally by an efficient traversal of the Series Parallel Graph representations of functional units. The technique can be efficiently applied at different abstraction levels of the design as well as toward other opti...

This paper presents a new approach to structural topology optimization. We represent the structural boundary by a level set model that is embedded in a scalar function of a higher dimension. Such level set models are flexible in handling complex topological changes and are concise in describing the boundary shape of the structure. Furthermore, a wellfounded mathematical procedure leads to a num...