Application of variable excitation frequency for amplitude reduction

Dynamic systems are faced with large vibration amplitudes if they operate near the resonance frequency of system or while passing through resonance. With a suitable external excitation reduction amplitude oscillation can be achieved. The analysis variable was first carried out on force driven single degree freedom harmonic oscillator. influence various parameters seen after mathematical transformation signal. elimination natural from signal is possible specially selected parameters. It demonstrated that numerical values, correlations between and functions allow to reduce operation takes place also during passage. theoretical assertions validated an experimental setup parameter identification has been made. In addition worst case scenario analysed test rig. developed requirements extended oscillators multi freedom.