Results 251 to 260 of about 13,495 (286)
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Rubber/viscous torsional vibration dampers
The Journal of the Acoustical Society of America, 1986Tuned rubber/viscous torsional vibration damper assemblies of the kind having a supporting rotor disk mounting an inertia mass coupled to the disk by viscous damping medium and elastic tuning spring, spacing and sealing rubber rings located in rubber ring accommodating grooves. A viscous damping medium working chamber is defined within the inertia mass
Ronald L. McLean, Gordon W. Kamman
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Self-leveling viscous elastic damper
The Journal of the Acoustical Society of America, 1983A self-leveling viscous elastic damper comprising an inner member at least partially received in an outer member and joined to the outer member with an elastomeric shear spring. A main fluid chamber is included in the outer member in communication with a second fluid chamber in the inner member through restricted orifice means.
Gerald E. Eaton +2 more
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Flexible column viscous spring damper
The Journal of the Acoustical Society of America, 1986A viscous spring damper for damping and levelling structural agitation comprising a first outer member joined to a connecting member by a first elastomeric shear spring, the first outer member including a first fluid chamber and a first elastomeric diaphragm.
Gerald E. Eaton, Emile M. Shtarkman
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The Journal of the Acoustical Society of America, 1981
Disclosed herein is a rotary viscous damper using a magnetic fluid as the damping medium. The damper comprises a permanent magnet rotor enclosed in a magnetically permeable housing. The magnetic fluid fills the space between the rotor and the housing and is held in place using magnetic forces generated by the magnet rotor.
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Disclosed herein is a rotary viscous damper using a magnetic fluid as the damping medium. The damper comprises a permanent magnet rotor enclosed in a magnetically permeable housing. The magnetic fluid fills the space between the rotor and the housing and is held in place using magnetic forces generated by the magnet rotor.
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The Journal of the Acoustical Society of America, 1981
In a viscous shear damper the seismic mass is chamfered at all its corners. Thus, the clearances between the seismic mass and its casing are gaps with oppositely widening out sections separated by middle sections of smallest widths.
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In a viscous shear damper the seismic mass is chamfered at all its corners. Thus, the clearances between the seismic mass and its casing are gaps with oppositely widening out sections separated by middle sections of smallest widths.
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Viscous damper development and future trends
The Structural Design of Tall Buildings, 2001AbstractViscous dampers can protect structures against wind excitation, blast and earthquakes. Viscous damper technology originated with military and aerospace applications. Approximately 10 years ago it was found that the same fluid viscous dampers that protect missiles against nuclear attack and guard submarines against near‐miss underwater ...
D. Lee, D. P. Taylor
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A stay cable with viscous damper and tuned mass damper
Australian Journal of Structural Engineering, 2015AbstractStay cables in cable-stayed bridges are vulnerable to dynamic excitation because their intrinsic damping is very low. The cables have often been exhibiting undesirable and excessive vibrations which result in increasing maintenance frequency and disruption to normal operations of the entire bridges.
Viet Hung Cu, Bing Han
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2020
The dissipating energy mechanism and characteristics, including types and characteristics of damping medium, energy dissipation mechanism and calculation models of viscous fluid damper are introduced. In the section of properties and improvement of viscous fluid materials, modification of viscous fluid damping materials, material property test of ...
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The dissipating energy mechanism and characteristics, including types and characteristics of damping medium, energy dissipation mechanism and calculation models of viscous fluid damper are introduced. In the section of properties and improvement of viscous fluid materials, modification of viscous fluid damping materials, material property test of ...
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Torsional Viscous-Friction Dampers
Journal of Fluids Engineering, 1949Abstract This paper describes the large torsional viscous-friction or “Lanchester” dampers manufactured by the author’s company for use on Diesel engines. Some properties of the new silicone fluids, that are necessary for damper design, are given.
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Partially Filled Viscous Ring Nutation Damper
Journal of Spacecraft and Rockets, 1974The problem of a spinning satellite with a partially filled viscous ring nutation damper is investigated. It is shown that there are two distinct modes of motion, previously named the nutation synchronous mode and the spin synchronous mode. An approximate solution for the nutation angle time history is obtained and time constants for the two modes are ...
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