Results 11 to 20 of about 33,921 (168)

Torsional Shear Device for Testing the Dynamic Properties of Recycled Material

open access: yesStudia Geotechnica et Mechanica, 2016
From the viewpoint of environmental preservation and effective utilization of resources, it is beneficial and necessary to reuse wastes, for example, concrete, as the recycled aggregates for new materials.
Gabryś Katarzyna   +3 more
doaj   +1 more source

Modal damping ratio maximization of a vehicle frame under load using multi-material topology optimization

open access: yesNihon Kikai Gakkai ronbunshu, 2021
In recent years, automobiles have improved the comfort inside the vehicle due to the improvement of noise reduction technology. However, there is a problem of road noise caused by the vibration of contact between the tire and the road surface.
Seita INOZUME, Tatsuhito AIHARA
doaj   +1 more source

Influence of Material-Dependent Damping on Brake Squeal in a Specific Disc Brake System

open access: yesApplied Sciences, 2021
The connection of two phenomena, nonconservative friction forces and dissipation-induced instability, can lead to many interesting engineering problems.
Juraj Úradníček   +3 more
doaj   +1 more source

An alternative J2 material model with isotropic hardening for coupled thermal-structural finite-strain elastoplastic analyses

open access: yesMATEC Web of Conferences, 2018
In this paper an alternative J2 material model with isotropic hardening for finite-strain elastoplastic analyses is presented. The model is based on a new nonlinear continuum mechanical theory of finite deformations of elastoplastic media which allows us
Écsi Ladislav   +2 more
doaj   +1 more source

Optimal layout of unconstrained damping material on a thin panel by using topology optimization

open access: yesNihon Kikai Gakkai ronbunshu, 2014
Damping material is usually applied on the steel panel of a vehicle to reduce vibration level. On the other hand, the weight reduction is also required to improve fuel consumption.
Takashi YAMAMOTO   +3 more
doaj   +1 more source

Damping mechanisms of vibration reduction system with granular materials for vibration system with high natural frequency (Study for high damping)

open access: yesNihon Kikai Gakkai ronbunshu, 2023
We investigated the damping mechanism of granular material dampers when using a structure with a relatively high natural frequency and small vibration displacement as the target of vibration damping.
Tomoko KOGA, Taichi SATO
doaj   +1 more source

Effect of Electromagnetic Damping on System Performance of Voice-Coil Actuator Applied to Balancing-Type Scale

open access: yesActuators, 2020
Changing a time-varying magnetic field induces an electromotive force (EMF) in non-magnetic conductive materials, resulting in an eddy current across the conductor. Thus, electromagnetic damping can be used as viscous damping.
Abdullah, Jung-Hwan Ahn, Hwa-Young Kim
doaj   +1 more source

Experimental investigation of dynamic characteristics of material applied to reduced scale physical models in the elastic state

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2022
Dynamic and vibration difficulties have begun to play a major part in structural analysis as a result of the increasing complexity and slimness of bridges.
Jennifer DM Cavalheiro   +2 more
doaj   +1 more source

Dynamic Optimization of Constrained Layer Damping Structure for the Headstock of Machine Tools with Modal Strain Energy Method

open access: yesShock and Vibration, 2017
Dynamic stiffness and damping of the headstock, which is a critical component of precision horizontal machining center, are two main factors that influence machining accuracy and surface finish quality. Constrained Layer Damping (CLD) structure is proved
Yakai Xu   +6 more
doaj   +1 more source

Ship mounting structure damping material optimization distribution and experimental study

open access: yesZhongguo Jianchuan Yanjiu, 2017
[Objectives] The mounting structure of a ship is an important piece of equipment for vibration reduction. In order to improve the vibration reduction effect of the mounting structure, damping material is often pasted onto its surface.[Methods] The ...
LI Leixin, LIU Chaojun, CHEN Luyun
doaj   +1 more source

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