Mechanics & Industry
Volume 17, Number 4, 2016
|Number of page(s)||11|
|Published online||23 May 2016|
Effects of mistuning on dynamic behavior of nonlinear cyclic systems with lump masses and cubic nonlinearity
Department of Mechanical Engineering, University of
2 Department of Mechanical Engineering, Isfahan University of Technology, Isfahan, Iran
3 Departament de Matematica Aplicada III, LaC‘aN, Universitat Polit‘ecnica de Catalunya (UPC), 08034 Barcelona, Spain
a Corresponding author: firstname.lastname@example.org
Received: 19 November 2014
Accepted: 19 October 2015
Mistuning in cyclic symmetric systems increases severely the forced response of system and splits the modes. This paper concerns with nonlinear behavior of mistuned cyclic systems. A nonlinear, mistuned model based on the method of multiple scales is proposed and formulated in which nonlinearity and mistuning parameter is assumed to be in of low order. Next, two mistuned systems were considered and solved by the multiple scale technique. Numerical results demonstrate that mistuning can lead to repeating and scattering of jump phenomena during the excitation frequency whereas in tuned cyclic system it occurs simultaneously (synchronously).
Key words: Nonlinear vibrations / bladed disk / mistuned system / multiple scale method
© AFM, EDP Sciences 2016
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.