Results 151 to 160 of about 376,126 (204)

Vibration Transmissibility and Apparent Mass Changes From Vertical Whole-Body Vibration Exposure During Stationary and Propelled Walking [PDF]

Applied Ergonomics, 2021
Whole-Body Vibration (WBV) is an occupational hazard affecting employees working with transportation, construction or heavy machinery. To minimize vibration-induced pathologies, ISO identified WBV exposure limits based on vibration transmissibility and ...
Stefano Marelli, Marco Tarabini, Enrico Marchetti   +2 more
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Vibration of Overhead Transmission Lines

Transactions of the American Institute of Electrical Engineers, 1932
STUDIES of vibration of overhead conductors have been prosecuted vigorously for several years in laboratory and fields. The importance of magnitude and distribution of stresses in multiplestrand conductors led to the development of a unique method for measuring stresses in vibrating conductors in the laboratory under conditions closely simulating field
R. A. Monroe, R. L. Templin
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Transmission line vibrations

Journal of Sound and Vibration, 1978
Various forms of dampers are used to suppress vibrations in transmission lines. In the present paper a study has been made on vibrations of transmission lines having one or more dampers (Stockbridge type) near each end of the span for different cable lengths.
M.S. Dhotarad, N. Ganesan, B.V.A. Rao
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Conductor vibration on transmission lines — I

Electrical Engineering, 1932
Laboratory tests reveal some interesting characteristics of conductor vibration and its effect upon conductor life; common hardware accessories, and less-common vibration dampers, are shown to have marked effects. Mathematical analyses of the stresses in standard sizes of conductors as commonly used for electric power transmission lines check closely ...
R. A. Monroe, R. L. Templin
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Transmission of Sound and Vibrations in Buildings

The Journal of the Acoustical Society of America, 1937
Three problems are discussed: The insulation from air-borne sound by multiple walls. Structure-borne sound transmission. Measurements of vibrations by electrical apparatus. It is known that a single wall vibrates almost as a mass, provided its lowest natural period is much lower than the sound frequencies.
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A model of transmission line vibration [PDF]

, 2022
A mathematical model is developed to predict the dynamic response of a long-span transmission line conductor excited sinusoidally by a point force and fitted with a damper. Previous studies of a long-span transmission line modelled as a stiff string have led to computational difficulty due to numerical overflow.
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Apparatus for preventing transmission of vibration of a vibration machine

The Journal of the Acoustical Society of America, 1981
An apparatus for preventing transmission of vibration of a vibration machine to the hands of an operator includes a vibration-absorbing action of an elastic air bag fitted as a grip to the vibration machine.
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Notes on the vibration of transmission-line conductors

Journal of the A.I.E.E., 1926
This paper describes tests made with a graphic recorder to show the vibration of transmission-line conductors under various conditions of wind velocity, conductor tension and span length. The method of taking the records is discussed. Formulas are given for determining the velocity of propagation of transverse waves along a conductor, the wavelength of
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Vibration transmission across the temporomandibular joint

Journal of Oral Rehabilitation, 1997
summary A non‐invasive method of assessing the status of the temporomandibular joint is presented. The method involves placing a computer‐controlled vibrator against a lower incisor, and microphones over the temporal bones. The amplitude of the signal transmitted is shown to be a function of the input frequency, the position of the mandible and ...
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Transmission Line Vibration Due to Sleet

Transactions of the American Institute of Electrical Engineers, 1932
PHENOMENA of vibration in transmission lines due to the action of a transverse wind are encountered most frequently at moderate wind velocities (about 5 miles per hr.) and are characterized by rather high frequencies (5 to 15 cycles per sec.) and small amplitudes (up to a few cable diameters).
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