Results 1 to 10 of about 246,253 (259)
Control of Material Damping in High-Q Membrane Microresonators [PDF]
, 2012 We study the mechanical quality factors of bilayer aluminum/silicon-nitride membranes. By coating ultrahigh-Q Si3N4 membranes with a more lossy metal, we can precisely measure the effect of material loss on Q's of tensioned resonator modes over a large ...
A. W. Leissa +5 more
core +1 more source
Dual-Phase Damping Material [PDF]
The Journal of the Acoustical Society of America, 1965 Small, overlapping platelets of structural material mixed in a matrix of viscoelastic damping material form a dual-phase damping material. This composite is an excellent extensional damping treatment because the viscoelastic damping material can be chosen for environmental resistance and high damping without regard for stiffness.
G. E. Warnaka +2 more
openaire +1 more source
Damping of the woodwind instrument reed material Arundo donax L [PDF]
, 2018 The viscoelastic properties (E', G', tanΦ, δ) of Arundo donax (AD) and a polypropylene-beech fiber composite (PPC) were measured from RT to 580K for various frequencies and strains.
Arlic, Uwe +4 more
core +2 more sources
Universal response of optimal granular damping devices [PDF]
, 2012 Granular damping devices constitute an emerging technology for the attenuation of vibrations based on the dissipative nature of particle collisions. We show that the performance of such devices is independent of the material properties of the particles ...
Bai +26 more
core +2 more sources
Viscoelastic High-Damping Materials [PDF]
The Journal of the Acoustical Society of America, 1963 An intensive investigation of polymers, polymer systems, and fillers was conducted that provided a material that effectively damps steel-plating up to 2 in. thick. The damping material exhibited greater than 3% critical damping over two decades of frequency and a 25°C temperature range, at a 13 plate-weight application. At an optimized temperature, the
George L. Ball, Ival O. Salyer
openaire +1 more source
, 2015 In the dynamic analysis of structural engineering systems, it is common practice to introduce damping models to reproduce experimentally observed features.
Cottereau, Régis, Jehel, Pierre
core +3 more sources
Vibration Damping of Carbon Nanotube Assembly Materials
, 2017 Vibration reduction is of great importance in various engineering applications, and a material that exhibits good vibration damping along with high strength and modulus has become more and more vital.
Li, Qingwen(李清文) +7 more
core +1 more source
The Damping Tail of CMB Anisotropies [PDF]
, 1996 By decomposing the damping tail of CMB anisotropies into a series of transfer functions representing individual physical effects, we provide ingredients that will aid in the reconstruction of the cosmological model from small-scale CMB anisotropy data ...
Aghanim N. +10 more
core +3 more sources
Fabrication and mechanical testing of a new sandwich structure with carbon fiber network core [PDF]
, 2010 The aim is the fabrication and mechanical testing of sandwich structures including a new core material known as fiber network sandwich materials.
Amir Shahdin +18 more
core +2 more sources
Damped finite-time-singularity driven by noise
, 2003 We consider the combined influence of linear damping and noise on a dynamical finite-time-singularity model for a single degree of freedom. We find that the noise effectively resolves the finite-time-singularity and replaces it by a first-passage-time or
A. Johansen +23 more
core +1 more source