Results 21 to 30 of about 33,921 (168)

A Novel Approach of the Viscoelasticity of Axially Functional Graded Bar and Application of Harmonic Vibration Analysis of an Isotropic Beam as Support

open access: yesApplied Sciences
The use of smart materials and passive controllers in modern technologies has stimulated the study of vibration in elastic systems with viscoelastic damping.
Cihan Demir
doaj   +1 more source

In-situ material damping measurements using the crosshole seismic method [PDF]

open access: yesE3S Web of Conferences
Crosshole seismic testing is commonly used to determine detailed and reliable wave velocity profiles. Material damping measurements can also be performed in crosshole seismic testing, but these measurements require a window function to maintain similar ...
Hwang Sungmoon, Stokoe, II Kenneth H.
doaj   +1 more source

Damping mechanisms of vibration reduction system with granular materials for vibration system with high natural frequency (Proposal of “relative motion mass”, “rotating mass”, and their consideration)

open access: yesNihon Kikai Gakkai ronbunshu, 2017
We investigated the damping mechanism of a granular material damping system applied to reducing vibration in structures that have a high natural frequency and small vibration displacement. Experiments were conducted under several conditions of total mass
Tomoko KOGA   +3 more
doaj   +1 more source

Taking into Account Material Damping in Seismic Analysis of Structures

open access: yesTehnički Glasnik, 2020
The purpose of this paper is to justify that it is necessary to take into account physical and mechanical properties of soil and different materials of erected structures for damping vibrations in dynamic loads, and to suggest tools for modelling the ...
Mariia S. Barabash   +2 more
doaj  

An assessment of transmission efficiency on a hard disk’s vibration

open access: yesMATEC Web of Conferences, 2018
At present, there is a trend to design a hard disk with a larger capacity, a faster revolution speed, and a precise mechanism. Therefore, the influence of data transmission with respect to vibration is obvious.
Chang Ying-Chun   +3 more
doaj   +1 more source

Damping measurements of a controlled composite material [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1974
Increased use of filamentary materials as reinforcements in structural components has necessitated obtaining information on the response of such material systems to a wide variety of loading conditions. One such technically important problem area is that associated with the dynamic response of composite materials to impact-type loading situations.
E. R. Jones   +2 more
openaire   +1 more source

Dynamic characteristics of Mn-Cu high damping alloy subjected to impact load

open access: yesAdvances in Mechanical Engineering, 2021
Mn-Cu high damping alloy is a twin-type damping alloy. Owing to its martensite twin structure at room temperature, it can convert vibration energy into heat energy, thereby reducing vibration.
Rui Zhu   +6 more
doaj   +1 more source

Effect of cyclic loading on the internal damping of magnesium alloy AZ31

open access: yesProduction Engineering Archives, 2017
The article focuses on the analysis of the internal damping changes depending on the amplitude of the magnesium alloy AZ31. Internal damping reflects the ability of the material irreversibly dissipating mechanical energy oscillations.
Uhríčik Milan   +2 more
doaj   +2 more sources

Optimization Design for Vibration Reduction of Polyurethane–Rubber Composite Damping Material

open access: yes工程科学与技术, 2020
Stand-off free layer damping is a vibration reduction treatment established on the traditional free layer damping structure. Based on the theory of stand-off free layer damping, polyurethane-rubber stand-off layer damping material was prepared by using ...
Longqiang LIANG   +4 more
doaj  

Study on the Damping Dynamics Characteristics of a Viscoelastic Damping Material

open access: yesProcesses, 2022
Viscoelastic damping materials are an effective means to control structural vibration, and are widely used in various fields. In this paper, we use the Dynamic Mechanical Analysis (DMA) characterization data of viscoelastic damping materials and dynamic characteristics experiments to study the dynamic characteristics of structural damping, analyze and ...
Fei Wang   +5 more
openaire   +1 more source

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