U radu ce se razmatrati odziv na harmonijsku pobudu najprije sistema s jednim stupnjem slobode a potom i s više stupnjeva slobode. Analizirat ce se svojstva odziva, frekvencijske funkcije odziva, pojam rezonancije i primjena na pokuse. Kod više stupnjeva slobode, razmatrat ce se slucaj prisilnog stanja za koje nije potrebna modalna analiza a nakon toga i primjena same modalne analize.
This paper examines system response to harmonic excitation, first discussing the single degree of freedom (sdof) system response, followed by analyzing the multiple degree of freedom (mdof) system response. It discusses response characteristics, frequency response functions, as well as the concept of resonance, and analyzes the theory’s experimental application. The mdof system analysis starts with a discussion on the steady state response, for which modal analysis is not necessary, and continues with the application of the modal analysis.