Abstract
The present paper revisits the problem of minimizing the weight of 2D skeletal structures under a single displacement constraint. The contribution lies on the development of an optimization procedure implementing three new features. The first feature is the formulation of a new and efficient Optimality Criterion-type redesign scheme where no Lagrange multipliers are required. The second feature is the introduction of a new categorization of the structural elements according to which members simultaneously being force-passive and area-active may lead search methods to local minima. The third feature is the application of a typical line-search optimization method on the structural elements diagnosed as force-passive/area-active so that their contribution to the structural weight is minimized and a better design is obtained. The validity of the proposed optimization procedure was successfully tested for determinate and indeterminate skeletal structures.
| Original language | English |
|---|---|
| Pages (from-to) | 125-155 |
| Number of pages | 31 |
| Journal | Structural and Multidisciplinary Optimization |
| Volume | 42 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jul 2010 |
Keywords
- Grid-like structure
- Layout optimization
- Single displacement constraint
- Virtual strain energy density
ASJC Scopus subject areas
- Control and Systems Engineering
- Software
- Computer Science Applications
- Computer Graphics and Computer-Aided Design
- Control and Optimization