Results 111 to 120 of about 1,509 (163)
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Equipment and Technologies for Oil and Gas Complex, 2018
FIELD: oil and gas industry.SUBSTANCE: invention relates to support-centering elements of a drill string and can be used in drilling deep oil and gas wells. Vibration damper-calibrator includes a housing with a central hole for the flushing liquid supply to the well shaft and two connecting threads for its installation into the drill string, divided by
R.M. Bogomolov, D.Yu. Serikov
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FIELD: oil and gas industry.SUBSTANCE: invention relates to support-centering elements of a drill string and can be used in drilling deep oil and gas wells. Vibration damper-calibrator includes a housing with a central hole for the flushing liquid supply to the well shaft and two connecting threads for its installation into the drill string, divided by
R.M. Bogomolov, D.Yu. Serikov
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The Journal of the Acoustical Society of America, 1985
A vibration-damping device is disclosed for damping the vibrations between a vibration generating and a vibration receiving assembly such as is found with the casing and the handles of a chain saw. In a preferred embodiment, the chain saw casing is provided with a fitting hole having two pairs of radially projecting arcuate portions each designed for ...
Yoshiaki Takayanagi, Takao Matsunaga
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A vibration-damping device is disclosed for damping the vibrations between a vibration generating and a vibration receiving assembly such as is found with the casing and the handles of a chain saw. In a preferred embodiment, the chain saw casing is provided with a fitting hole having two pairs of radially projecting arcuate portions each designed for ...
Yoshiaki Takayanagi, Takao Matsunaga
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The Journal of the Acoustical Society of America, 1996
An active vibration damper for a reciprocating machine part, comprising an inertial mass that can be displaced in the direction of the reciprocating motion and a support plate that can be fastened to the machine part. The inertial mass and the support plate are connected to one another by a spring element.
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An active vibration damper for a reciprocating machine part, comprising an inertial mass that can be displaced in the direction of the reciprocating motion and a support plate that can be fastened to the machine part. The inertial mass and the support plate are connected to one another by a spring element.
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The Journal of the Acoustical Society of America, 1986
A vibration damper assembly which includes an output hub with circumferentially spaced plural radial arms and arcuate openings between the arms; input covers disposed at both sides of the hub and having openings axially faced to the openings in the hub; plural torsion springs arranged circumferentially tandem in each set of the openings in the hub and ...
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A vibration damper assembly which includes an output hub with circumferentially spaced plural radial arms and arcuate openings between the arms; input covers disposed at both sides of the hub and having openings axially faced to the openings in the hub; plural torsion springs arranged circumferentially tandem in each set of the openings in the hub and ...
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The Journal of the Acoustical Society of America, 2004
A particle vibration damper (66) for a vibrating component (38, 40, 78, 80, 82, 84, 86, 88) comprising a body (68) having a chamber (72), the chamber (72) partially filled with a plurality of particles (74), the particle vibration damper (66), in use, disposed on or in a vibrating component (38, 40, 78, 80, 82, 84, 86, 88).
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A particle vibration damper (66) for a vibrating component (38, 40, 78, 80, 82, 84, 86, 88) comprising a body (68) having a chamber (72), the chamber (72) partially filled with a plurality of particles (74), the particle vibration damper (66), in use, disposed on or in a vibrating component (38, 40, 78, 80, 82, 84, 86, 88).
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The Journal of the Acoustical Society of America, 1982
The disclosure illustrates a tuned viscous torsional vibration damper having a hub member for attachment to an internal combustion engine crankshaft. An annular inertia mass is journaled within the hub member to form a working chamber which contains a viscous liquid to damp out torsional oscillations of the inertia member relative to the hub.
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The disclosure illustrates a tuned viscous torsional vibration damper having a hub member for attachment to an internal combustion engine crankshaft. An annular inertia mass is journaled within the hub member to form a working chamber which contains a viscous liquid to damp out torsional oscillations of the inertia member relative to the hub.
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Suppression of vortex-induced high-mode vibrations of a cable-damper system by an additional damper
Engineering Structures, 2021Lin Chen, Limin Sun, Fangdian Di
exaly
The Journal of the Acoustical Society of America, 1994
Uwe Weltin, Hermann Schilling
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Uwe Weltin, Hermann Schilling
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