Session
Civil Engineering, Infrastructure and Environment
Description
The paper discusses the mixed-integer non-linear programming (MINLP) approach to the optimization of structures. The MINLP is an optimization technique which is able to solve non-linear and discrete optimization problems. It calculates continuous variables (loads, dimensions, stresses, deflections, costs) and discrete variables (topology, standard sections, material grades). The MINLP optimization model of a structure should be developed. In the model, an objective function is subjected to structural analysis and dimensioning constraints in order to satisfied ultimate and serviceability limit states according to Eurocodes. Appropriate MINLP algorithms and strategies are used to solve the defined MINLP problem. Two numerical examples are presented at the end of the paper.
Keywords:
Structural Optimization, Discrete optimization, Mixed-Integer Non-Linear Programming, MINLP
Session Chair
Muhamet Ahmeti
Session Co-Chair
Feti Selmani
Proceedings Editor
Edmond Hajrizi
First Page
179
Last Page
185
Location
Lipjan, Kosovo
Start Date
31-10-2020 9:00 AM
End Date
31-10-2020 10:30 AM
DOI
10.33107/ubt-ic.2020.60
Recommended Citation
Kravanja, Stojan and Žula, Tomaž, "MINLP optimization of structures" (2020). UBT International Conference. 219.
https://knowledgecenter.ubt-uni.net/conference/2020/all_events/219
Included in
MINLP optimization of structures
Lipjan, Kosovo
The paper discusses the mixed-integer non-linear programming (MINLP) approach to the optimization of structures. The MINLP is an optimization technique which is able to solve non-linear and discrete optimization problems. It calculates continuous variables (loads, dimensions, stresses, deflections, costs) and discrete variables (topology, standard sections, material grades). The MINLP optimization model of a structure should be developed. In the model, an objective function is subjected to structural analysis and dimensioning constraints in order to satisfied ultimate and serviceability limit states according to Eurocodes. Appropriate MINLP algorithms and strategies are used to solve the defined MINLP problem. Two numerical examples are presented at the end of the paper.