Analysis of Constrained-Layer Damping of Flexural and Extensional Waves in Infinite, Fluid-Loaded Plates

reportActive / Technical Report | Accession Number: ADA247936 | Open PDF

Abstract:

This study contains a mathematical analysis of constrained-layer damping CLD in plates of infinite extent, with an emphasis on the physical understanding of some special features, including fluid loading. Previous work is expanded to cover extensional waves. Some essential aspects of fluid loading may be understood by applying thin-plate theory. Therefore, thin-plate theory of extensional waves in a fluid-loaded plate was developed as a counterpart to that for flexural waves. The description and examples of CLD follow three models the first is an extension of Kerwins 1959 model, the second a hybrid model for which the base plate is treated by exact elasticity theory, and finally a fully exact model for all three layers. Examples and comparisons are given.

Author(s):
Dubbelday, Pieter S.
Author Organization(s):
NAVAL RESEARCH LAB ORLANDO FL UNDERWATER SOUND REFERENCE DETACHMENT
Supplementary Note:
DOI: 10.21236/ADA247936
Pagination:
0009

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Task Number(s):
RR0110842
Project Number(s):
RR01108
Monitor Series:
ONR
 Subject Terms
Joint Capability Areas:
JCA_8.2.4_Leverage Capacities and Capabilities of Security Establishments; JCA_8.2_Shape; JCA_8_Building Partnerships; JCA_5_Command and Control; JCA_5.3_Planning; JCA_1_Force Support
Modernization Areas:
Fully Networked C3
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*MECHANICAL WAVES, INTERACTIONS, LAYERS, THEORY, PLATES, MATHEMATICAL ANALYSIS, FLUIDS, FLEXURAL PROPERTIES, MODELS, DAMPING
Field(s)/Group(s):
Mechanics
Keyword(s):
CONSTRAINED LAYER DAMPING, THIN PLATE THEORY, EXTENSIONAL WAVES
Report Date:
1992 Mar 01