Abstract
This chapter intends to fill the research gap by addressing the lack of established procedures to optimize the design of truss structures with specified natural frequencies using quadratic interpolation optimization (QIO). This is achieved by applying the same to trusses under given natural frequency constraints with the QIO technique applied to trusses made of Fiber-Reinforced Polymer (FRP). Such problems are characterized by nonlinear and nonconvex search spaces, filled with numerous local optima, which are difficult to tackle using traditional methods. The proposed methodology provides the ability to arrive at high-quality solutions with reduced computational effort. Comparing the performance of carbon FRP, glass FRP, and steel trusses with a stated genetic QIO algorithm will assist in wise material selection and design. The results show that utilizing carbon FRP composite in truss construction significantly reduces weight compared to steel.