Truss optimization with frequency constraints based on TLBO algorithm

Metaheuristic algorithm is preferred by the many researches to find the minimum weight of truss structures considering size and/or shape design variables which are the truss element's cross-sectional area and joint coordinates of the geometry of the trusses for the size and shape optimization, respectively. The design of plane and spatial truss structures are optimized by a popular metaheuristic optimization technique named Teaching-Learning-Based Optimization (TLBO). Finite element analyses of structures and optimization process were carried out by the computer program coded in MATLAB visually developed by the authors. Two benchmark problems (37-bar, and 72-bar) taken from literature were optimized and the optimal solutions belong this paper were compared with previous studies.