Premium
Reduction of the vibration amplitude with variable excitation frequency
Author(s) -
Simader Victoria,
Holl Helmut J.
Publication year - 2021
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.202000027
Subject(s) - amplitude , excitation , vibration , resonance (particle physics) , natural frequency , signal (programming language) , oscillation (cell signaling) , reduction (mathematics) , acoustics , physics , control theory (sociology) , nonlinear resonance , harmonic , mathematics , atomic physics , computer science , optics , chemistry , quantum mechanics , biochemistry , control (management) , artificial intelligence , programming language , geometry
In many dynamic systems large vibration amplitudes occur if the operation frequency is near the resonance frequency. Also during the resonance passage large amplitudes result. In order to reduce the amplitude of the oscillation a suitable excitation can be applied. The force driven single degree of freedom harmonic oscillator is used to analyse the reaction of the dynamic system to a variable excitation frequency. The analysis starts with a mathematical transformation of the excitation signal in order to identify the influence of the different excitation parameters. It is shown that for specific parameters the natural frequency of the system can be eliminated from the excitation signal. In both cases, the operation near the resonance frequency and the passage through resonance, suitable numerical values, correlations between the parameters and functions can be found to reduce the resulting vibration amplitude of the system.