Results 121 to 130 of about 33,921 (168)
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Damping of composite materials
Polymer Composites, 1984AbstractA rule of mixture for the prediction of the loss factor of hybrid laminates of graphite/epoxy and kevlar/epoxy composite materials is developed. The theoretical values agree reasonably with the experimental values for ten samples. An optimal laminate having the modulus of aluminium and twice the loss factor of graphite/epoxy laminates is ...
S. V. Hoa, P. Ouellette
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Damping material, damping arrangement and method for designing a damping arrangement
The Journal of the Acoustical Society of America, 2008A laminate material for damping a vibrational mode of a structure is provided, the laminate material comprising a viscoelastic layer and a stiff constrained layer adhered to the viscoelastic layer, wherein the viscoelastic layer is elastomer based and the constrained layer is made of steel, galvanized steel or aluminum.
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The Journal of the Acoustical Society of America, 1985
A sound damping material is disclosed, which is a composite structural body comprising honeycomb or corrugated core, plain sheet and pressure sensitive adhesive layer, a height direction of the honeycomb or corrugated core being perpendicular to a surface of a vibrating body.
Yoshihide Fukahori +3 more
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A sound damping material is disclosed, which is a composite structural body comprising honeycomb or corrugated core, plain sheet and pressure sensitive adhesive layer, a height direction of the honeycomb or corrugated core being perpendicular to a surface of a vibrating body.
Yoshihide Fukahori +3 more
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Effect of material damping on bone remodelling
Journal of Biomechanics, 1987This paper considers the effect of internal material damping on the stresses, strains, and surface and internal remodelling behaviour in a section of axisymmetrical bone with a force-fitted axially oriented medullary pin. The bone response to several loading situations is modelled using visco-elastic equations.
J C, Misra, S, Samanta
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Cryo Magnetic Damping: Material Characterization and Damping Demonstration
48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2007The aim of this research is to develop analytical techniques that are supported by experimental data to predict the behavior of a passive magnetic damper in a cryogenic environment. The applications are far reaching--projects with high precision pointing requirements, such as JWST, operate in harsh environments where traditional damping techniques may ...
Sarah Brennan +2 more
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Damping Efficiency of Ribbed Panels with Different Damping Materials
SAE Technical Paper Series, 1997<div class="htmlview paragraph">Geometrical stiffening of the panels via rib design are considered due to vehicle design requirement and vibro-acoustic considerations. This paper studies the damping effectiveness of different damping treatments (extensional, shear damping structural damping layer - based on friction and inelastic collision) for ...
Yang Qian, Anuj Aggarwal, Hameed Khan
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The Impact of Damping Material Application Parameters on Damping Performance
SAE Technical Paper Series, 2007<div class="htmlview paragraph">Structure-borne excitations are significant contributors to vehicle interior sound and vibration. Damping treatments applied to the body panels dissipate vibration energy and reduce interior levels of sound and vibration.
Nikolina Samardzic, Sergiy Sergiyenko
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1991
The dynamic resonances and sound barrier properties of a structure are governed primarily by mass, stiffness, and damping. Mass and stiffness were discussed in Chapter 3. Damping is perhaps the most unpredictable and complex property. The word “damping” has been used loosely for many years to denote any number of noise abatement procedures.
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The dynamic resonances and sound barrier properties of a structure are governed primarily by mass, stiffness, and damping. Mass and stiffness were discussed in Chapter 3. Damping is perhaps the most unpredictable and complex property. The word “damping” has been used loosely for many years to denote any number of noise abatement procedures.
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