Results 41 to 50 of about 30,349 (319)

Fluid inertia damper using MR fluid with a long spiral bypass pipe

Mechanical Engineering Journal, 2016
An inertia damper with a long spiral bypass pipe was developed in order to obtain a series inertia effects for vibration suppression of structures in practical use. The damper comprised a cylinder, piston, and MR fluid. The gap was spirally formed around
Taichi MATSUOKA, Kazuhiko HIRAMOTO, Katsuaki SUNAKODA, Naoto ABE, Pei-Yang LIN   +4 more
doaj   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

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

Nihon 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

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Supporting brace sizing in structures with added linear viscous fluid dampers: A filter design solution [PDF]

, 2014
Viscous fluid dampers have proved to be effective in suppressing unwanted vibrations in a range of engineering structures. When dampers are fitted in a structure, a brace is typically used to attach them to the main structure. The stiffness of this brace
Londoño Monsalve, Julian Mauricio, Neild, S.A., Simon A. Neild, Neild, Simon A, David J. Wagg, Wagg, David J, Londono, J.M., Wagg, D.   +7 more
core   +1 more source

Variable Natural Frequency Damper for Minimizing Response of Offshore Wind Turbine: Effect on Dynamic Response According to Inner Water Level

Journal of Marine Science and Engineering
Offshore wind turbines (OWTs) are exposed to cyclic loads resulting from wind, waves, and rotor rotation. These loads can induce resonance, thereby significantly increasing the amplitude of the structure and accelerating the accumulation of fatigue ...
Dong-Ju Kim, Young-Suk You, Min-Young Sun   +2 more
doaj   +1 more source

Evaluating Energy Absorption Performance of Filled Lattice Structures

Advanced Engineering Materials, EarlyView.
Maximum stress must be considered to robustly evaluate energy absorber designs. This approach was applied to compare all types of absorbers in a single Ashby diagram and determine the utility of filling lattice voids with a second material. High‐performance fillers can improve the performance of lattices that are limited by buckling or catastrophic ...
Christian Bonney, William P. King, Iwona Jasiuk   +2 more
wiley   +1 more source

Evaluation of dampers using a resonance adhesion tester

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2013
This paper describes the diagnostics of dampers using resonant adhesion tester. This kind of test is non-invasive and evaluation is based on the EUSAMA methodology.
Stanislav Koláček, Petr Dostál
doaj   +1 more source

Low Cycle Repetitive Loading of Ti‐6Al‐4V‐Epoxy Composite Lattice Structures for Enhanced Energy Dissipation and Damage Tolerance

Advanced Engineering Materials, EarlyView.
Composite Ti–6Al–4V–epoxy lattice structures are additively manufactured and epoxy infiltrated for cyclic loading. At low lattice volume fractions, hybridization produces synergistic gains in stiffness and energy dissipation. At higher volume fractions, synergy diminishes, although composites still exceed metallic lattices in specific energy ...
Joey Tallon, Jordan Noronha, Justin Dirrenberger, Andrey Molotnikov   +3 more
wiley   +1 more source

Design and simulation of a controller for an active suspension system of a rail car

Cogent Engineering, 2018
The quest to increase the performance of rail car in terms of stability, safety and ride comfort has triggered research into the design, modelling and dynamic simulation of the suspension system of a rail car.
I. A Daniyan, K. Mpofu, D. F. Osadare
doaj   +1 more source