Results 121 to 130 of about 8,512,124 (296)

Reduced joint models for damping design of multi-jointed structures [PDF]

open access: yes, 2014
− Design of damping in multi-jointed structures is studied here. − Dissipation sources are viscoelastic behavior and contact/friction at joints interfaces. − Reduction on meta-models of nonlinear joints models is investigated.
BALMES, Etienne   +2 more
core  

Comparison study of damping performance between tuned mass damper and track nonlinear energy sink

open access: yes上海师范大学学报. 自然科学版
Based on a 2-story steel frame model, the damping performance of tuned mass damper (TMD) and nonlinear energy sink (NES) under the seismic action was compared in shaking-table tests.
WU Chunlei   +3 more
doaj   +1 more source

Can Elastomers Combine Stiffness, Toughness and Fatigue Resistance?

open access: yesAdvanced Materials, EarlyView.
This review studies how the molecular and macroscopic architecture of elastomers influence their mechanical properties including: stiffness, stretchability, toughness, fatigue resistance, and damping behavior. By linking the structure to performance, it proposes design principles for advanced elastomeric systems that combine mechanical properties ...
Eva Baur, Esther Amstad
wiley   +1 more source

Dissipation mechanisms identification of soft hollow particle-dampers in honeycomb structures for micro-vibrations environment [PDF]

open access: yes, 2009
Particle dampers are enclosures partially filled with metallic or glass small spheres, attached to the vibrating structure. This paper deals with replacing hard classical particles by soft hollow ones to maximize damping and mass ratio. Hence, one aspect
Heurteau, Jean-Pierre   +5 more
core  

Controlling Radiative Phonons in the van der Waals Ferroelectric NbOI2

open access: yesAdvanced Materials, EarlyView.
Using a simple mirror geometry, this work demonstrates local‐density‐of‐optical‐states control of THz phonon emission in van der Waals ferroelectric NbOI2. By engineering the photonic environment, the phonon Q‐factor, linewidth, peak frequency, and emission intensity are reversibly tuned by over an order of magnitude, revealing radiative phonons as ...
Baolong Zhang   +5 more
wiley   +1 more source

RESEARCH ON ELASTIC-RING ISOLATOR’S DAMPING BASED ON PIEZOELECTRIC SHUNT DAMPING TECHNIQUE

open access: yesJixie qiangdu, 2015
To analyze the present problems of the elastic-ring isolator,such as the unideal damping effect,the unadjustable damping and so on,the piezoelectric shunt damping technique was adopted to study the vibration control performance of the elastic ring.Using ...
YIN Shuang, WEN LiHua, LIU Yong
doaj  

Vibration Suppression Analysis of Spatial Pipelines with Viscoelastic Damping Layer Based on the Topology Optimization

open access: yesApplied Sciences
Under the premise of a certain damping layer volume, topological optimization design of its attach shape can enable a pipeline system to achieve optimal damping performance.
Dongxu Du, Hongwei Ma, Wei Sun
doaj   +1 more source

Ultrathin Hydrogel Membranes Inspired by Soap Films Enable Physiologically Relevant Breathing Lung Models

open access: yesAdvanced Materials, EarlyView.
A soap‐film inspired strategy enables the fabrication of ultrathin yet robust GelMA‐PAAm membranes for breathing lung culture. The hydrogel membrane supports long‐term cyclic deformation under air‐liquid interface conditions, enabling physiologically relevant breathing motions of engineered lung tissue culture. ABSTRACT Breathing continuously stretches
Yunji Lee   +9 more
wiley   +1 more source

Surface-wave damping in a brimful circular cylinder [PDF]

open access: yes, 1998
The natural frequencies and damping rates of surface waves in a circular cylinder with pinned-end boundary conditions are calculated in terms of the gravitational Reynolds and Bond numbers, C[minus sign]1 and B, and the slenderness of the cylinder ...
Martel, Carlos, Nicolás, José A.
core  

Additive manufacturing-induced anisotropy in damping performance of a dual-phase high-entropy alloy

open access: yesJournal of Materials Research and Technology
Additive manufacturing (AM) can endow materials with specific microstructures, inducing anisotropy. In this study, we employed the AM technique to fabricate a dual-phase high-entropy alloy (HEA) and evaluated the damping properties of this alloy cut ...
Yadong Li   +5 more
doaj   +1 more source

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