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Dynamic response of Blue Honeysuckle fruit-stem system based on mathematical model. [PDF]

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Wei Y, Ruiyin W, Yecheng W, Fang F, Decai M.   +4 more
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Forced Vibrations of a Nonhomogeneous String

SIAM Journal on Mathematical Analysis, 2008
We prove existence of vibrations of a nonhomogeneous string under a nonlinear time periodic forcing term in the case in which the forcing frequency avoids resonances with the vibration modes of the string (nonresonant case). The proof relies on a Lyapunov–Schmidt reduction and a Nash–Moser iteration scheme.
Baldi, P., Berti, M.
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ON THE FORCED VIBRATION TEST BY VIBRODYNE

Proceedings of the 5th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COMPDYN 2015), 2015
In civil engineering, Experimental Modal Analysis (EMA) dynamic tests are powerful aids to the seismic design of new structures, and useful tools for the structural identification of existing structures. EMA tests require to accurately evaluate the harmonic forcing function that is applied to the structure under testing, in order to correctly apply ...
MODANO, MARIANO, Fabbrocino, F., GESUALDO, ANTONIO, Matrone, G., Farina, I., Fraternali, F.   +5 more
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Nonlinear Forced Vibrations of Beams

Journal of Applied Mechanics, 1985
An iterative procedure for computing periodic solutions of nonlinear vibrating beams is presented. The nonlinear partial differential equation is replaced by a coupled system of equations. The contraction mapping principle is then applied to generate a method of successive approximations.
Countryman, M., Kannan, R.
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Forced vibrations of a beam with a non-linear dynamic vibration absorber

Journal of Sound and Vibration, 1983
Abstract Forced vibrations of a simply supported beam having an attached non-linear dynamic vibration absorber and excited by sinusoidal motion of its supporting base are investigated analytically. The absorber produces a hardening spring force in the form of a cubic curve. The governing partial differential equation reduces to the well-known Duffing
Kojima, H., Saito, H.
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Forced Vibrations of a Circular Plate

Journal of Applied Mechanics, 1959
Abstract A solution is presented for the response of a clamped, circular plate to the action of an arbitrarily placed, harmonically oscillating, transverse, concentrated force. The method may be extended to a variety of loading and boundary conditions and can also be applied to ring-shaped plates.
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Forced vibration resonators and free vibration of the hull

International Shipbuilding Progress, 1971
As ships increase in size, the formulas previously used to describe ships' vibrations are being found to contain errors which are leading to expensive repairs and lost time. The article describes the various differences between the previous calculations used and the vibrations which are actually being found to occur.
Bourceau, G., Volcy, G.C.
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Forced vibration of strings

American Journal of Physics, 1982
The forced vibration of strings has much in common with, on the one hand, their free vibration and, on the other hand, the forced harmonic motion of single objects. But there are also peculiarities, some of which are investigated here. It is found useful to distinguish two kinds of forcing; and some suggestions are made about vibrating strings in such ...
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Forced vibrations of a circular muscle ring

Bulletin of Mathematical Biology, 1973
We consider the small radial displacement of a circular ring of cardiac muscle subjected to periodic forcing. The ring in question is that in the middle layer, at the transverse midsection, of the left ventricle. We show that the ring reacts in a periodic manner when forced in a periodic manner. This is accomplished by writing the differential equation
Delsemme, Pierre, Vayo, H. Westcott
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