The effect of beam inclination on the performance of a passive vibration isolator using buckled beams
The effect of beam inclination on the performance of a passive vibration isolator using buckled beams
Passive vibration isolators are desired to have both high static stiffness to support large static load and low local stiffness to reduce the displacement transmissibility at frequencies greater than resonance. Utilization of a vertical buckled beam as a spring component is one way to realize such a stiffness characteristic since it exhibits a smaller ratio of local stiffness to static stiffness than that of a linear spring. This paper investigates the behaviour of a vibration isolator using inclined beams as well as vertical ones and examines the effect of beam inclination for the purpose of improving the isolation performance. The experimental system investigated has an
isolated mass which is supported by a combination of two types of beams: buckled beams and constraining beams. The buckled beams can be inclined from the vertical by attachment devices, and the constraining beams are employed to prevent off-axis motion of the isolated mass. The results demonstrate that the inclination of the buckled beams reduces the resonance frequency and improves the displacement transmissibility at frequencies greater than resonance.
1-7
Mori, H.
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Waters, T.
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Saotome, N.
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Nagamine, T.
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Sato, Y.
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Mori, H.
fcac8133-6490-4ee8-9d83-5c7825a79959
Waters, T.
348d22f5-dba1-4384-87ac-04fe5d603c2f
Saotome, N.
c97140b6-7bff-4610-ae3a-e7be95c1b83d
Nagamine, T.
ce998ae6-945c-4047-9bdb-71fc18dda9dd
Sato, Y.
b5f65c08-aa8c-42f1-9af3-e2f44ef1889d
Mori, H., Waters, T., Saotome, N., Nagamine, T. and Sato, Y.
(2016)
The effect of beam inclination on the performance of a passive vibration isolator using buckled beams.
Journal of Physics: Conference Series, .
(In Press)
Abstract
Passive vibration isolators are desired to have both high static stiffness to support large static load and low local stiffness to reduce the displacement transmissibility at frequencies greater than resonance. Utilization of a vertical buckled beam as a spring component is one way to realize such a stiffness characteristic since it exhibits a smaller ratio of local stiffness to static stiffness than that of a linear spring. This paper investigates the behaviour of a vibration isolator using inclined beams as well as vertical ones and examines the effect of beam inclination for the purpose of improving the isolation performance. The experimental system investigated has an
isolated mass which is supported by a combination of two types of beams: buckled beams and constraining beams. The buckled beams can be inclined from the vertical by attachment devices, and the constraining beams are employed to prevent off-axis motion of the isolated mass. The results demonstrate that the inclination of the buckled beams reduces the resonance frequency and improves the displacement transmissibility at frequencies greater than resonance.
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Accepted/In Press date: 12 August 2016
Organisations:
Dynamics Group
Identifiers
Local EPrints ID: 399619
URI: http://eprints.soton.ac.uk/id/eprint/399619
ISSN: 1742-6588
PURE UUID: a93a2d24-e123-4665-970f-1e3f8cd669b8
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Date deposited: 22 Aug 2016 10:56
Last modified: 15 Mar 2024 05:50
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Author:
H. Mori
Author:
N. Saotome
Author:
T. Nagamine
Author:
Y. Sato
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