TY - JOUR N2 - The article presents the process of identifying discrete-continuous models with the use of heuristic algorithms. A stepped cantilever beam was used as an example of a discrete-continuous model. The theoretical model was developed based on the formalism of Lagrange multipliers and the Timoshenko theory. Based on experimental research, the theoretical model was validated and the optimization problem was formulated. Optimizations were made for two algorithms: genetic (GA) and particle swarm (PSO). The minimization of the relative error of the obtained experimental and numerical results was used as the objective function. The performed process of identifying the theoretical model can be used to determine the eigenfrequencies of models without the need to conduct experimental tests. The presented methodology regarding the parameter identification of the beams with the variable cross-sectional area (according to the Timosheno theory) with additional discrete components allows us to solve similar problems without the need to exit complex patterns. L1 - http://www.czasopisma.pan.pl/Content/122226/PDF/2379_corr.pdf L2 - http://www.czasopisma.pan.pl/Content/122226 PY - 2022 IS - 1 EP - e140150 DO - 10.24425/bpasts.2022.140150 KW - discrete-continuous model KW - experimental modal analysis KW - optimialization; identification KW - vibrations A1 - Cekus, Dawid A1 - Kwiatoń, Paweł A1 - Šofer, Michal A1 - Šofer, Pavel VL - 70 DA - 25.02.2022 T1 - Application of heuristic methods to identification of the parameters of discrete-continuous models SP - e140150 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/122226 T2 - Bulletin of the Polish Academy of Sciences Technical Sciences ER -