Results 231 to 240 of about 36,803 (267)

Intensification of bubble columns by vibration excitement

Catalysis Today, 2003
In this paper we show that application of low-frequency vibrations, in the 40-120 Hz range, to the liquid phase of an air-water bubble column causes significantly smaller bubbles to be generated at the nozzle. In experiments with a single capillary nozzle, the bubble size is reduced by about 40-50%, depending on the vibration frequency and amplitude ...
Ellenberger, J., van Baten, J.M., Krishna, R.   +2 more
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Hydrophone Calibration in a Vibrating Column of Liquid

The Journal of the Acoustical Society of America, 1962
Absolute pressure calibrations of hydrophones have been performed in the laboratory by immersing the hydrophone in a column of liquid set into vibration. Sound pressures of over 1000 dyne/cm2 can easily be obtained. Various limitations on the procedure, such as those due to fluid motion around the hydrophone, and wave effects in the liquid column are ...
F. Schloss, M. Strasberg
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Vibrations of the Reed and the Air Column in the Clarinet

The Journal of the Acoustical Society of America, 1961
The vibrations of an artificially blown clarinet were studied by a photoelectric method in which light from a source placed at the bell of the instrument passed through the aperture between the reed and the mouthpiece and into a photomultiplier tube whose output was observed on an oscilloscope.
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Investigation on nonlinear coupled vibration of columns.

2011
The oscillation of a column subjected to periodic axial end excitation was analytically and experimentally investigated. The initial crookedness of the column and the longitudinal inertia of a column element give rise to coupled, longitudinal-flexural oscillations. A snap-thru phenomenon and complex subharmonics of natural flexural modes of oscillation
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Vibration column extractors

Chemical and Petroleum Engineering, 1980
V. L. Pebalk, A. E. Kostanyan, B. N. Parfanovich   +2 more
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Vibration of a Two-Section Standing Column

Journal of Engineering Mechanics, 2013
The vibration of a two-section column under gravity effects is studied using an efficient initial value method. The problem is governed by the length and area ratios of the two sections in addition to gravity. For the standing column, the stability boundaries show looped properties.
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The Hanging Column as a Dynamic Vibration Absorber

International Journal of Structural Stability and Dynamics, 2018
A simple mass–spring system with an attached hanging column is investigated. The problem is formulated and the frequencies obtained with an efficient initial value method. Under forced vibration, the amplitude of the mass may be greatly reduced by adding a hanging column.
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Vibration Response of Beam-Column Structures

The Journal of the Acoustical Society of America, 1962
The higher audio frequencies are becoming of great interest in vibration studies, due to structure-borne noise considerations. In the uniform beam-column structures described, meaningful results are obtained when shear, rotary-inertia, and impedance terminations and corner joints are included. A distributed analysis is obtained using a multipole matrix
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Passive vibration control of engineering structures based on an innovative column-in-column (CIC) concept

Engineering Structures, 2021
Hong Hao, Kaiming Bi
exaly  

Vibrations of a Cantilevered Pump Column

1980
Wei-Yih Chow, Alexander B. Rudavsky
openaire   +1 more source