On the stability of the impact damper.
Periodic symmetric two-impacts-per-cycle motion of impact damper solved, determining asymptotically stable regions
SYSTEM STABILITY↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Effectiveness of external dampers for attenuating launch vehicle oscillations.
External damper effectiveness in attenuating vibration of launch vehicle near launch umbilical tower
LAUNCH VEHICLE↗
Electric-analog studies of impact dampers.
Electric analog and mechanical model used to investigate single particle impact dampers
ELECTRIC ANALOGY↗
Method of relating modal damping to local dampers in lumped-parameter systems.
Individual section dampers relation to modal damping of series mass spring in lumped parameter systems
INFLUENCE COEFFICIENT↗
A split-damper inertially coupled passive gravity-gradient attitude control system.
Attitude errors of inertially coupled gravity gradient satellite with solar radiation pressure as dominant disturbance, noting slot problems in stabilized package accommodating damper motion
PRESSURE EFFECT↗
Damper Placement for Spaceborne Interferometers Using H(inf)-Norm, Genetic Algorithm, and Simulated Annealing, Optimization
A general methodology for damper placement in spaceborne interferometers is introduced.
Interferometry Optimization Damper Placement↗
Viscous-pendulum damper suppresses structural vibrations
The viscous pendulum damper consists of a cylinder containing round trays on which round lead slugs rest. When assembled, the container is filled with a viscous liquid and attached, with axis vertical, to the structure. The device permits varying the damping of structural vibrations.
Reed, W. H., III↗
Damper reduces effects of resonance on force transducer
Viscous-film damper eliminates response lag of resonance generated noise when inserted into the thrust measuring system. This technique can be applied to automated devices when pulsed force or low order impact is involved, and where signal noise is produced by stopping or reversal of mechanical travel or by water hammer.
Postma, R. W.↗
Analysis and design of elasto-plasto-viscous point vibration dampers Final report
Point vibration dampers whose basic energy absorption mechanism is elastoplastic hysteresis, supplemented by rubber damping elements
ELASTOPLASTICITY↗
Decay rates of a passive precession damper and bounds.
Bounds for decay times of pendulum damper vibrating in plane containing spin axis of space vehicle
VIBRATION DAMPING↗
A viscous ring damper for a freely precessing satellite.
Viscous ring damper for removing wobble motion of spin-stabilized satellite analyzed by studying energy dissipation
VISCOUS DAMPING↗
Method of relating model damping to local dampers in lumped parameter systems
Relation between modal damping characteristics and section dampers in lumped-parameter system for approximating longitudinal launch vehicle motion
VIBRATION DAMPING↗
On the stability of the impact damper.
Stability of two-impacts-per-cycle motion of impact damper
IMPACT ACCELERATION↗
Study of a passive damper for atmospheric entry bodies Final report
Design and operation of damper for spinning or nonspinning, slender or blunt atmospheric entry bodies
Auelmann, R. R.↗
Dampers to suppress wind-induced oscillations of tall flexible structures
Viscous dampers for suppressing wind-induced oscillations of large flexible structures, antenna arrays, and Saturn 5 launch vehicle
Duncan, R. L.↗
Friction and wear under fretting conditions of materials for use as wire friction dampers of compressor blade vibration
Friction and fretting wear tests on materials used as friction dampers to reduce vibrational stresses in compressor blades for turbine engines
Johnson, R. L.↗
Feasibility study and model development for a ferrofluid viscous damper Final report, 8 Nov. 1966 - 8 Mar. 1967
Development of magnetic fluid viscous oscillation damper for scientific satellites
Source record↗