Results 31 to 40 of about 9,838,392 (346)

Monitoring the effects of impact damages on modal parameters in carbon fiber entangled sandwich beams [PDF]

open access: yes, 2009
The aim is to study the impact toughness of two types of entangled sandwich materials (heavy and light) with the help of vibration testing. A simple case of symmetrical impacts is studied in this article as no literature is available regarding impact ...
Bouvet, Christophe   +4 more
core   +1 more source

Effects of Y content on microstructure, mechanical and damping properties of Mg–Al–Y alloys

open access: yesMaterials Research Express, 2021
The effect of Y on microstructure, mechanical properties, and damping properties of the extruded and annealed Mg–1Al– x Y ( x  = 4, 6, 8) alloys has been studied. The grain sizes of Mg–Al–Y alloys decreased with the increase of Y.
Hongbin Ma, Jinhui Wang
doaj   +1 more source

Investigating the influence of multi-walled carbon nanotubes on the mechanical and damping properties of ultra-high performance concrete

open access: yesScience and Engineering of Composite Materials, 2020
In this paper, the effects of multiwalled carbon nanotubes (MWCNTs) on the mechanical and damping properties of ultra-high performance concrete (UHPC) were investigated.
Wenhua Zhang   +6 more
semanticscholar   +1 more source

Preparation and properties of marine high-damping nitrile rubber/phenolic resin/chlorinated paraffin composites

open access: yesHecheng xiangjiao gongye, 2023
Phenolic resin (PF) was combined with nitrile rubber (NBR) as vulcanizing agent and blend respectively, the effects of PF amount on mechanical properties, damping properties and oil resistance of NBR were studied, and chlorinated paraffin (CP 52) was ...
WANG Qing-xin, QU He-xiang, XIE Yong-gang, AI Jian-yang, KE Nan
doaj   +1 more source

Improving the Damping Properties of Nanocomposites by Monodispersed Hybrid POSS Nanoparticles: Preparation and Mechanisms. [PDF]

open access: yesPolymers (Basel), 2019
In this work, a series of heptaphenyl siloxane trisilanol/polyhedral oligomeric silsesquioxane (T7-POSS) modified by polyols with different molecular weights were synthesized into liquid-like nanoparticle–organic hybrid materials using the grafted-from ...
Wei W   +7 more
europepmc   +2 more sources

EXPERIMENTAL PROCESS FOR DETERMINING THE DAMPING PROPERTIES OF BARS WITH AROPOL MATRIX [PDF]

open access: yesFiabilitate şi Durabilitate, 2016
In this paper, I have built a composite sample made from glass fiber as reinforcement and Aropol as matrix. For this sample, I have used an experimental procedure to determine the damping properties and the frequency of the first eigenmode.
Claudia Alina IOVAN
doaj  

An Effective Damping Control Approach in Grid-Connected Converters [PDF]

open access: yesInternational Journal of Industrial Electronics, Control and Optimization, 2023
The primary objective of this paper is to address the adverse effects of active power fluctuations on grid-connected converters. One of the challenges in integrating high levels of solar photovoltaic power into the utility grid is the lack of inertia ...
Anwer Ali   +4 more
doaj   +1 more source

Simultaneous non-destructive identification of multiple elastic and damping properties of spruce tonewood to improve grading

open access: yes, 2020
The tonewoods used in musical instruments are finely selected and are subject to current and upcoming availability issues. Wood grading assesses the quality of the tonewood and depends on both subjective and objective criteria.
R. Viala, V. Placet, S. Cogan
semanticscholar   +1 more source

Investigation of Damping Coefficient For Magnetorheological Elastomer

open access: yesMATEC Web of Conferences, 2018
Magnetorheological elastomer (MRE) is a smart material where its stiffness vary with presence of magnetic field.These special properties lead to various application as mechanical devise such as damper.
Hadzir M.N.Hazwan   +3 more
doaj   +1 more source

Isolation and damping properties of magnetorheologic elastomers

open access: yesJournal of Physics: Conference Series, 2009
This paper considers two systems based on a magnetorheological elastomer (MRE): a MRE isolator under a frequency varying harmonic excitation and a MRE Dynamic Vibration Absorber (DVA) mounted on a frequency-varying structure under a random excitation. It is shown that the commandability of the elastomer improves the isolation performances in the first ...
Collette, Christophe   +5 more
openaire   +3 more sources

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