NDLI: Non-linear vibrations of free-edge thin spherical shells: Experiments on a 1:1:2 internal resonance

Content Provider	Springer Nature Link
Author	Thomas, O. Touzé, C. Luminais, É.
Copyright Year	2006
Abstract	This study is devoted to the experimental validation of a theoretical model of large amplitude vibrations of thin spherical shells described in a previous study by the same authors. A modal analysis of the structure is first detailed. Then, a specific mode coupling due to a 1:1:2 internal resonance between an axisymmetric mode and two companion asymmetric modes is especially addressed. The structure is forced with a simple-harmonic signal of frequency close to the natural frequency of the axisymmetric mode. The experimental setup, which allows precise measurements of the vibration amplitudes of the three involved modes, is presented. Experimental frequency response curves showing the amplitude of the modes as functions of the driving frequency are compared to the theoretical ones. A good qualitative agreement is obtained with the predictions given by in the model. Some quantitative discrepancies are observed and discussed, and improvements of the model are proposed.
Starting Page	259
Ending Page	284
Page Count	26
File Format	PDF
ISSN	0924090X
Journal	Nonlinear Dynamics
Volume Number	49
Issue Number	1-2
e-ISSN	1573269X
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2006-09-30
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Shallow spherical shells Geometrical nonlinearities Internal resonance Non-linear vibrations Experiments Automotive and Aerospace Engineering, Traffic Mechanical Engineering Mechanics Vibration, Dynamical Systems, Control
Content Type	Text
Resource Type	Article
Subject	Ocean Engineering Applied Mathematics Control and Systems Engineering Mechanical Engineering Electrical and Electronic Engineering Aerospace Engineering

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