Results 61 to 70 of about 126,696 (263)
Calculation of a Shock Response Spectra [PDF]
Acta Montanistica Slovaca, 2011 As it is stated in the ISO 18431-4 Standard, a Shock Response Spectrum is defined as the response to a given accelerationacting at a set of mass-damper-spring oscillators, which are adjusted to the different resonance frequencies while their ...
Jiri Tuma, Marek Babiuch, Petr Koci
doaj
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 +4 more
wiley +1 more source
Nihon Kikai Gakkai ronbunshu, 2019 We investigated the damping mechanism of a granular-material damper for a structure with a high natural frequency. We focused on the flow of the granular-material vibration energy and considered its relationship with the damping characteristics.
Tomoko KOGA, Taichi SATO, Rei KAGEYAMA
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Interaction of Connected Single-Degree-of-Freedom Systems
Procedia Engineering, 2011 AbstractIn most industrial complexes many structures are connected to each other by secondary elements, since the connections between main structures are carried out by these secondary elements, modeling of links is relinquished in primary and also sometimes main seismic analysis, so their effects on the main structures and elements are not considered.
Taheri, Ali, Behnamfar, Farhad
openaire +1 more source
Advanced Engineering Materials, EarlyView.Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth +6 more
wiley +1 more source
Impact of blast wave arrival delay on the dynamic behavior of protective structures
Будівельні конструкції. Теорія і практикаThe article examines methods for calculating protective structures under the action of a blast wave, the pressure of which reaches different points at different times.
Анатолій Перельмутер +3 more
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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 +2 more
wiley +1 more source
A Clamped Bar Model for the Sompoton Vibrator
Archives of Acoustics, 2013 The sompoton is one of famous traditional musical instruments in Sabah. This instrument consists of several parts with the vibrator being the most important one.
Tee Hao WONG +4 more
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Phonon number measurements using single photon opto-mechanics
New Journal of Physics, 2012 We describe a system composed of two coupled optical cavity modes with a coupling modulated by a bulk mechanical resonator. In addition, one of the cavity modes is irreversibly coupled to a single photon source.
S Basiri-Esfahani, U Akram, G J Milburn
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Advanced Engineering Materials, EarlyView.Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies +2 more
wiley +1 more source