Results 31 to 40 of about 469,050 (204)

Dynamic behavior of a rotating delaminated composite beam including rotary inertia and shear deformation effects [PDF]

open access: yes, 2015
A finite element (FE) model is developed to study the free vibration of a rotating laminated composite beam with a single delamination. The rotary inertia and shear deformation effects, as well as the bending–extension, bending–twist and extension–twist ...
Della, Christian   +1 more
core   +2 more sources

VIBRATION FREE 4.5 K SORPTION COOLER [PDF]

open access: yesAIP Conference Proceedings, 2008
At the University of Twente, a breadboard 4.5 K sorption cooler was developed under ESA contract. It has no moving parts and, therefore, is essentially vibration-free. Moreover, it has the potential of a very long life. This cooler is a favorite option for missions such as ESA's Darwin mission, which is a future space interferometer consisting of a few
J. F. Burger   +19 more
openaire   +1 more source

Free vibration analysis of a string with vibration suppressor located at center of the string (When gap between string and vibration suppressor is zero)

open access: yesNihon Kikai Gakkai ronbunshu, 2015
When an elevator rope for a high-rise building is forcibly excited by the displacements of the building induced by wind forces and/or by long-period ground motion, rope displacement becomes large even if the ground acceleration and the buildings ...
Hiroyuki KIMURA
doaj   +1 more source

Free Vibration Characteristics of Multi-Material Lattice Structures

open access: yesVibration, 2023
This paper presents a modal analysis of honeycomb and re-entrant lattice structures to understand the change in natural frequencies when multi-material configuration is implemented.
Kadir Gunaydin, Ahmet Yavuz, Aykut Tamer
doaj   +1 more source

Vibration isolation and pressure compensation apparatus for sensitive instrumentation [PDF]

open access: yes, 1983
A system for attenuating the inherent vibration associated with a mechanical refrigeration unit employed to cryogenically cool sensitive instruments used in measuring chemical constituents of the atmosphere is described.
Averill, R. D.
core   +1 more source

Buckling and vibration analysis of laminated composite plate/shell structures via a smoothed quadrilateral flat shell element with in-plane rotations [PDF]

open access: yes, 2011
This paper presents buckling and free vibration analysis of composite plate/shell structures of various shapes, modulus ratios, span-to-thickness ratios, boundary conditions and lay-up sequences via a novel smoothed quadrilateral flat element.
Allman   +57 more
core   +2 more sources

Free vibration analysis of a string with vibration suppressor (When the position of vibration suppressor is opposite to the pulled position)

open access: yesMechanical Engineering Journal, 2016
A vibration suppressor is used to change the natural frequency of an elevator rope, and to prevent resonance. The elevator rope is modeled using a string.
Hiroyuki KIMURA
doaj   +1 more source

Experimental Study on Robustness of an Eddy Current-Tuned Mass Damper

open access: yesApplied Sciences, 2017
In this paper, an eddy current tuned mass damper (ECTMD) is utilized to control the vibration of a cantilever beam. The robustness of the ECTMD against frequency detuning is experimentally studied in cases of both free vibration and forced vibration. The
Junda Chen   +5 more
doaj   +1 more source

Free Vibration Analysis of Sandwich Plate-Reinforced Foam Core Adopting Micro Aluminum Powder

open access: yesФізика і хімія твердого тіла, 2022
Analytical study of free vibration behavior of foam core sandwich plates strengthened with Aluminum micro spherical powder were presented in this paper. Sandwich plate with polyurethane foam core sandwiched between two Aluminum faces.
Muhannad Al-Waily   +2 more
doaj   +1 more source

Free vibration of axially loaded thin-walled composite box beams [PDF]

open access: yes, 2009
A general analytical model applicable to flexural–torsional coupled vibration of thin-walled composite box beams with arbitrary lay-ups under a constant axial force has been presented.
Banerjee   +23 more
core   +2 more sources

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