Results 41 to 50 of about 99,528 (347)

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

open access: yesAdvanced 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   +2 more
wiley   +1 more source

Forced vibrations of piezoceramic cylindrical shells [PDF]

open access: yes, 2015
Статтю присвячено аналізу проблеми вимушених коливань п’єзокерамічних циліндричних оболонок у вигляді коротких і високих кілець з радіальною поляризацією.
Bezverkhyi, O.   +4 more
core  

Simulation of tail boom vibrations using main rotor-fuselage Computational Fluid Dynamics (CFD) [PDF]

open access: yes, 2017
In this work, fully-resolved rotor-fuselage interactional aerodynamics is used as the forcing term in a model based on the Euler-Bernoulli equation, aiming to simulate helicopter tail-boom vibration.
Barakos, George N.   +4 more
core   +2 more sources

Powder Optimization Strategies for Binder Jetting Printing of BaTiO3 and Ba0,6Sr0,4TiO3 Ceramics

open access: yesAdvanced Engineering Materials, EarlyView.
Powder optimization is investigated to enable binder jetting of BaTiO3 and Ba0.6Sr0.4TiO3 ferroelectric ceramics. The antagonistic relationship between flowability and binder compatibility is addressed through binder impregnation of granulated powders and fumed silica addition to fine powders.
Fanny Pruvost   +4 more
wiley   +1 more source

Effect of Hydrostatic Guideway on Reduction of Machine Tool Ram Vibration [PDF]

open access: yes, 2018
The guideways provide translational movement of machine parts and have a major impact on the resulting utility properties of the ma-chine tools, such as machining accuracy, surface quality and productivity.
Lazák T., Stach E., Sulitka M.
core  

Assessment of dynamic and long-term performance of an innovative multi-story timber building via structural monitoring and dynamic testing [PDF]

open access: yes, 2012
Peer ...
Desgeorges, Yohann   +5 more
core   +1 more source

Investigation of Oxygen‐Free Wetting Behavior of Aluminum on Copper via Molecular Dynamics Simulations and Experiments

open access: yesAdvanced Engineering Materials, EarlyView.
The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu   +8 more
wiley   +1 more source

Evaluation and control of induced vibrations for a passenger car ferry

open access: yesAnnals of "Dunărea de Jos" University of Galaţi: Fascicle XI Shipbuilding, 2015
The aim of this paper is to present some examples related to the evaluation of the level of the global forced vibrations and to highlight the possible vibration problems of the ship.
Octavian Neculet, Liviu Crudu
doaj  

Harmonic analysis of the torque of the YAMZ-5340 engine

open access: yesОмский научный вестник
The purpose of the study is to find a technique and conduct on its basis a harmonic analysis of the torque of an internal combustion engine for the subsequent determination of resonant vibrations of the crankshaft. The method of calculating the harmonics
Yu. P. Makushev, T. A. Polyakova
doaj   +1 more source

Исследование вынужденных колебаний двух лопаток с учетом контакта в межбандажном соединении [PDF]

open access: yes, 2006
In the given work the task about forced vibrations of blades is considered in view of contact interaction in blade-to-blade connection.
Демуз, Я. Д.   +2 more
core  

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