Backscattering from a baffled finite plate strip with fuzzy attachments

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

A formulation for predicting the effect of fuzzy attachments on the response of a master structure was originally provided by the fuzzy structure theory of Soize. An extension of Soize's theory was recently developed by Pierce et al. (ASME 1993 Winter Meeting, New Orleans, LA). This new formulation is applied to a finite plate strip simply supported in an infinite rigid baffle. An incident plane-wave pulse is incident upon the plate and the effect of the fuzzy attachments on the target strength is determined. The primary effect of a large number of 1-DOF fuzzy attachments is an apparent added mass and an apparent added damping to the plate. Both of these effects depend directly on the mass distribution of the 1-DOF attachments with respect to their natural frequencies. A representative distribution is considered. It is found that if the most probable natural frequency of the fuzzy attachments coincides with a plate resonance, the amplitude at the target frequency is significantly reduced, the amount of reduction increasing as the total mass of all attachments increases. Plate resonances above the target frequency are shifted upward, and those below are shifted downward.

Original languageEnglish (US)
Pages (from-to)1527-1533
Number of pages7
JournalJournal of the Acoustical Society of America
Volume98
Issue number3
DOIs
StatePublished - Jan 1 1995

Fingerprint

attachment
strip
backscattering
resonant frequencies
formulations
baffles
mass distribution
winter
Fuzzy
plane waves
damping
pulses

All Science Journal Classification (ASJC) codes

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics

Cite this

@article{b9b33c13c4fc43deaa63f194a4d253ca,
title = "Backscattering from a baffled finite plate strip with fuzzy attachments",
abstract = "A formulation for predicting the effect of fuzzy attachments on the response of a master structure was originally provided by the fuzzy structure theory of Soize. An extension of Soize's theory was recently developed by Pierce et al. (ASME 1993 Winter Meeting, New Orleans, LA). This new formulation is applied to a finite plate strip simply supported in an infinite rigid baffle. An incident plane-wave pulse is incident upon the plate and the effect of the fuzzy attachments on the target strength is determined. The primary effect of a large number of 1-DOF fuzzy attachments is an apparent added mass and an apparent added damping to the plate. Both of these effects depend directly on the mass distribution of the 1-DOF attachments with respect to their natural frequencies. A representative distribution is considered. It is found that if the most probable natural frequency of the fuzzy attachments coincides with a plate resonance, the amplitude at the target frequency is significantly reduced, the amount of reduction increasing as the total mass of all attachments increases. Plate resonances above the target frequency are shifted upward, and those below are shifted downward.",
author = "Russell, {Daniel Allen} and Sparrow, {Victor Ward}",
year = "1995",
month = "1",
day = "1",
doi = "10.1121/1.414346",
language = "English (US)",
volume = "98",
pages = "1527--1533",
journal = "Journal of the Acoustical Society of America",
issn = "0001-4966",
publisher = "Acoustical Society of America",
number = "3",

}

TY - JOUR

T1 - Backscattering from a baffled finite plate strip with fuzzy attachments

AU - Russell, Daniel Allen

AU - Sparrow, Victor Ward

PY - 1995/1/1

Y1 - 1995/1/1

N2 - A formulation for predicting the effect of fuzzy attachments on the response of a master structure was originally provided by the fuzzy structure theory of Soize. An extension of Soize's theory was recently developed by Pierce et al. (ASME 1993 Winter Meeting, New Orleans, LA). This new formulation is applied to a finite plate strip simply supported in an infinite rigid baffle. An incident plane-wave pulse is incident upon the plate and the effect of the fuzzy attachments on the target strength is determined. The primary effect of a large number of 1-DOF fuzzy attachments is an apparent added mass and an apparent added damping to the plate. Both of these effects depend directly on the mass distribution of the 1-DOF attachments with respect to their natural frequencies. A representative distribution is considered. It is found that if the most probable natural frequency of the fuzzy attachments coincides with a plate resonance, the amplitude at the target frequency is significantly reduced, the amount of reduction increasing as the total mass of all attachments increases. Plate resonances above the target frequency are shifted upward, and those below are shifted downward.

AB - A formulation for predicting the effect of fuzzy attachments on the response of a master structure was originally provided by the fuzzy structure theory of Soize. An extension of Soize's theory was recently developed by Pierce et al. (ASME 1993 Winter Meeting, New Orleans, LA). This new formulation is applied to a finite plate strip simply supported in an infinite rigid baffle. An incident plane-wave pulse is incident upon the plate and the effect of the fuzzy attachments on the target strength is determined. The primary effect of a large number of 1-DOF fuzzy attachments is an apparent added mass and an apparent added damping to the plate. Both of these effects depend directly on the mass distribution of the 1-DOF attachments with respect to their natural frequencies. A representative distribution is considered. It is found that if the most probable natural frequency of the fuzzy attachments coincides with a plate resonance, the amplitude at the target frequency is significantly reduced, the amount of reduction increasing as the total mass of all attachments increases. Plate resonances above the target frequency are shifted upward, and those below are shifted downward.

UR - http://www.scopus.com/inward/record.url?scp=0029130615&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029130615&partnerID=8YFLogxK

U2 - 10.1121/1.414346

DO - 10.1121/1.414346

M3 - Article

VL - 98

SP - 1527

EP - 1533

JO - Journal of the Acoustical Society of America

JF - Journal of the Acoustical Society of America

SN - 0001-4966

IS - 3

ER -