Open AccessInvestigation of the influence of the dynamic system parameters on its frequency and modal spectrums
Author(s) -
M Lahtyukhov,
А. Б. Фоминых
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/820/1/012029
Subject(s) - modal , modal testing , natural frequency , modal analysis , interval (graph theory) , mathematics , chain (unit) , spectral line , control theory (sociology) , modal analysis using fem , mathematical analysis , vibration , physics , acoustics , computer science , materials science , control (management) , combinatorics , astronomy , artificial intelligence , polymer chemistry
The influence of parameters of dynamic system on its frequency and modal spectra is investigated by the example of chain unbranched dynamic system with finite number of degrees of freedom. The general regularities between the parameters of the chain dynamic system and its frequency and modal spectra are determined. It is established that according to the own spectrum of the chain dynamic system the inflated estimation of the interval width of eigenfrequency change at variation of any parameter may be given. The criterion, allowing to determine the structural parameters of the system, which significantly affect the given natural frequencies, is obtained.