Transmissibility characteristics of stiffened profiles for designed-in viscoelastic damping pockets in beams

Nigel D. Butler; S. Olutunde Oyadiji

doi:10.1016/j.compstruc.2007.02.003

Transmissibility characteristics of stiffened profiles for designed-in viscoelastic damping pockets in beams

Nigel D. Butler, S. Olutunde Oyadiji

Mechanical and Aerospace Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

It has been show in previous work that the levels of damping produced by these designed-in viscoelastic damping pockets (VDP's) can be greater than that of a traditional CLD treatment, but the loss in structural stiffness can be most undesirable. In this work, the use of different shaped damping pockets which produce webs and structural stiffeners running along the length of the beam are investigated using the finite element method. It is shown that the introduction of the stiffening profiles greatly reduces the loss in structural stiffness, and the levels of damping achieved by the designed-in damping is still substantial. © 2007 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	437-446
Number of pages	9
Journal	Computers and Structures
Volume	86
Issue number	3-5
DOIs	https://doi.org/10.1016/j.compstruc.2007.02.003
Publication status	Published - Feb 2008

Keywords

Constrained layer dampers (CLD)
Damping
Damping pockets
Sandwich beams
Stiffening profiles
Viscoelastic

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10.1016/j.compstruc.2007.02.003

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title = "Transmissibility characteristics of stiffened profiles for designed-in viscoelastic damping pockets in beams",

abstract = "It has been show in previous work that the levels of damping produced by these designed-in viscoelastic damping pockets (VDP's) can be greater than that of a traditional CLD treatment, but the loss in structural stiffness can be most undesirable. In this work, the use of different shaped damping pockets which produce webs and structural stiffeners running along the length of the beam are investigated using the finite element method. It is shown that the introduction of the stiffening profiles greatly reduces the loss in structural stiffness, and the levels of damping achieved by the designed-in damping is still substantial. {\textcopyright} 2007 Elsevier Ltd. All rights reserved.",

keywords = "Constrained layer dampers (CLD), Damping, Damping pockets, Sandwich beams, Stiffening profiles, Viscoelastic",

author = "Butler, {Nigel D.} and Oyadiji, {S. Olutunde}",

year = "2008",

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language = "English",

volume = "86",

pages = "437--446",

journal = "Computers and Structures",

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T1 - Transmissibility characteristics of stiffened profiles for designed-in viscoelastic damping pockets in beams

AU - Butler, Nigel D.

AU - Oyadiji, S. Olutunde

PY - 2008/2

Y1 - 2008/2

N2 - It has been show in previous work that the levels of damping produced by these designed-in viscoelastic damping pockets (VDP's) can be greater than that of a traditional CLD treatment, but the loss in structural stiffness can be most undesirable. In this work, the use of different shaped damping pockets which produce webs and structural stiffeners running along the length of the beam are investigated using the finite element method. It is shown that the introduction of the stiffening profiles greatly reduces the loss in structural stiffness, and the levels of damping achieved by the designed-in damping is still substantial. © 2007 Elsevier Ltd. All rights reserved.

AB - It has been show in previous work that the levels of damping produced by these designed-in viscoelastic damping pockets (VDP's) can be greater than that of a traditional CLD treatment, but the loss in structural stiffness can be most undesirable. In this work, the use of different shaped damping pockets which produce webs and structural stiffeners running along the length of the beam are investigated using the finite element method. It is shown that the introduction of the stiffening profiles greatly reduces the loss in structural stiffness, and the levels of damping achieved by the designed-in damping is still substantial. © 2007 Elsevier Ltd. All rights reserved.

KW - Constrained layer dampers (CLD)

KW - Damping

KW - Damping pockets

KW - Sandwich beams

KW - Stiffening profiles

KW - Viscoelastic

U2 - 10.1016/j.compstruc.2007.02.003

DO - 10.1016/j.compstruc.2007.02.003

M3 - Article

VL - 86

SP - 437

EP - 446

JO - Computers and Structures

JF - Computers and Structures

IS - 3-5

ER -

Transmissibility characteristics of stiffened profiles for designed-in viscoelastic damping pockets in beams

Abstract

Keywords

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