Effects of damping and damping mistuning on the forced vibration response of bladed disks

C. C. Lin; Marc Mignolet

doi:10.1006/jsvi.1996.0300

Effects of damping and damping mistuning on the forced vibration response of bladed disks

C. C. Lin, Marc Mignolet

Mechanical and Aerospace Engineering

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

42 Scopus citations

Abstract

The effects of blade-to-blade variations in the damping coefficients on the forced response of a bladed disk are investigated. It is found that this non-uniformity of the disk can lead to variations in the blades' amplitudes of response which are similar, in magnitude, to those obtained with stiffness mistuning but are potentially more dangerous because of the far extending large amplitude tail of the distribution. The influence of various structural parameters on the scatter of blade amplitudes is also studied. Finally, the adequacy of the combined Closed Form - Perturbation (CFP) method is demonstrated by comparison with simulation results.

Original language	English (US)
Pages (from-to)	525-543
Number of pages	19
Journal	Journal of Sound and Vibration
Volume	193
Issue number	2
DOIs	https://doi.org/10.1006/jsvi.1996.0300
State	Published - Jun 6 1996

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Acoustics and Ultrasonics
Mechanical Engineering

Access to Document

10.1006/jsvi.1996.0300

Cite this

@article{047ff629c09249008ae6f0dff8c74aa2,

title = "Effects of damping and damping mistuning on the forced vibration response of bladed disks",

abstract = "The effects of blade-to-blade variations in the damping coefficients on the forced response of a bladed disk are investigated. It is found that this non-uniformity of the disk can lead to variations in the blades' amplitudes of response which are similar, in magnitude, to those obtained with stiffness mistuning but are potentially more dangerous because of the far extending large amplitude tail of the distribution. The influence of various structural parameters on the scatter of blade amplitudes is also studied. Finally, the adequacy of the combined Closed Form - Perturbation (CFP) method is demonstrated by comparison with simulation results.",

author = "Lin, {C. C.} and Marc Mignolet",

note = "Funding Information: The partial support of this work by a grant from the Allied/Signal Aerospace Company is gratefully acknowledged. The authors also wish to thank Dr O. Ditlevsen for a fruitful discussion of Appendix A. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.",

year = "1996",

month = jun,

day = "6",

doi = "10.1006/jsvi.1996.0300",

language = "English (US)",

volume = "193",

pages = "525--543",

journal = "Journal of Sound and Vibration",

issn = "0022-460X",

publisher = "Academic Press Inc.",

number = "2",

}

TY - JOUR

T1 - Effects of damping and damping mistuning on the forced vibration response of bladed disks

AU - Lin, C. C.

AU - Mignolet, Marc

N1 - Funding Information: The partial support of this work by a grant from the Allied/Signal Aerospace Company is gratefully acknowledged. The authors also wish to thank Dr O. Ditlevsen for a fruitful discussion of Appendix A. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 1996/6/6

Y1 - 1996/6/6

N2 - The effects of blade-to-blade variations in the damping coefficients on the forced response of a bladed disk are investigated. It is found that this non-uniformity of the disk can lead to variations in the blades' amplitudes of response which are similar, in magnitude, to those obtained with stiffness mistuning but are potentially more dangerous because of the far extending large amplitude tail of the distribution. The influence of various structural parameters on the scatter of blade amplitudes is also studied. Finally, the adequacy of the combined Closed Form - Perturbation (CFP) method is demonstrated by comparison with simulation results.

AB - The effects of blade-to-blade variations in the damping coefficients on the forced response of a bladed disk are investigated. It is found that this non-uniformity of the disk can lead to variations in the blades' amplitudes of response which are similar, in magnitude, to those obtained with stiffness mistuning but are potentially more dangerous because of the far extending large amplitude tail of the distribution. The influence of various structural parameters on the scatter of blade amplitudes is also studied. Finally, the adequacy of the combined Closed Form - Perturbation (CFP) method is demonstrated by comparison with simulation results.

UR - http://www.scopus.com/inward/record.url?scp=0030572270&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030572270&partnerID=8YFLogxK

U2 - 10.1006/jsvi.1996.0300

DO - 10.1006/jsvi.1996.0300

M3 - Article

AN - SCOPUS:0030572270

VL - 193

SP - 525

EP - 543

JO - Journal of Sound and Vibration

JF - Journal of Sound and Vibration

SN - 0022-460X

IS - 2

ER -

Effects of damping and damping mistuning on the forced vibration response of bladed disks

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this