Results 211 to 220 of about 7,121 (266)

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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Lattice Vibrations and Harmonic Forces in Solids

Proceedings of the Physical Society. Section B, 1957
A discussion is given of the interpretation in terms of harmonic forces between atoms of the phonon frequency against wave vector data which is provided by the results of both X-ray and neutron scattering experiments. A knowledge of the phonon polarization vectors is required before a calculation of the components of the interatomic harmonic force ...
Foreman, A. J. E., Lomer, W. M.
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Control of Forced Vibrations

2015
Magnetoelastic forced vibrations of a conducting plate caused by either nonstationary external forces of nonelectromagnetic origin, or with the help of a nonstationary harmonic magnetic field, are examined. The following results are conditioned by the interaction of mechanical and electromagnetic processes in oscillating thin bodies.
Gevorg Baghdasaryan, Marine Mikilyan
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Forced vibration of a multidirectional nonlinear oscillator

2017 4th International Conference on Systems and Informatics (ICSAI), 2017
This paper presents a nonlinear piezoelectric oscillator structure capable of collecting multi-directional vibrational energy. The structure is mainly composed of universal coupling, piezoelectric spring, flexible hinge and mass block. The dynamical response of the structure is similar to the spring pendulum system.
Yang Chen, Yipeng Wu
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A numerical method for the forced nonlinear vibration

Mechanics Research Communications, 1983
The authors give graphs of steady periodic solutions of two special cases of two problems: a) A harmonic oscillator subject to a resistive force proportional to the velocity and a frictional force under a periodic excitation. b) A mass excited by a harmonic external force which causes another mass to move between two walls and to bounce off them. There
Kim, Ock Hyun, Lee, Byung Ho
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Grip Force Estimation by Emitting Vibration

Adjunct Publication of the 30th Annual ACM Symposium on User Interface Software and Technology, 2017
We propose a method for determining grip force based on active bone-conducted sound sensing, which is an active acoustic sensing. In our previous studies, we estimated the joint angle, hand pose, and contact force by emitting a vibration to the body. We aspired to expand to an additional application of an active bone-conducted sound sensing, thus, we ...
Nobuhiro Funato, Kentaro Takemura
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Forced Vibrations of Arches

2011
This chapter is devoted to forced vibration analysis of arches and arched structures subjected to disturbing loads. Different types of arches and theirs loading are considered. Analytical methods of analysis are applied.
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Forced Vibration with Damping

American Journal of Physics, 1955
The experimental determination of the response curves for forced vibration with velocity damping, using a moving-coil galvanometer, is described. The mechanism for producing a sinusoidal emf, of continuously variable frequency ranging from zero to 0.4 cy/sec, is described, together with a method for the determination of the phase angle between the ...
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