Open AccessEstimation of the resonance amplitude in machines with inertia vibrator in the coast-down phase
Author(s) -
Grzegorz Cieplok
Publication year - 2018
Publication title -
mechanics and industry
Language(s) - English
Resource type - Journals
eISSN - 2257-7777
pISSN - 2257-7750
DOI - 10.1051/meca/2017035
Subject(s) - vibrator (electronic) , inertia , vibration , resonance (particle physics) , amplitude , natural frequency , acoustics , work (physics) , phase (matter) , control theory (sociology) , coupling (piping) , physics , mechanics , computer science , engineering , classical mechanics , mechanical engineering , atomic physics , optics , control (management) , quantum mechanics , artificial intelligence
The work concerns mechanical systems with transient resonance formed as a result of an unbalanced rotating mass passing through an area of the system's natural frequency. In particular, this concerns over-resonant vibrating machines driven by inertia vibrators, which during start-up and coast-down pass through the natural frequency area related to the vibrating mass – flexible suspension system. The work analyses a system consisting of a soft-mounted machine body excited into vibrations by means of the inertia vibrator in order to designate the amplitude of resonant vibration, taking into consideration strong coupling between movements of the body and vibrator. The research results are presented in the form of nomograms and approximation formulas expressed in terms of relative parameters. The results of the theoretical research were verified on the laboratory model and industrial machines.