The Direct Measurement of Damping Coefficients Using an Inverse Eigenvalue Method

reportActive / Technical Report | Accession Number: ADA258214 | Open PDF

Abstract:

A direct measurement technique to identify the viscous damping coefficient of one-dimensional devices has been developed. The frequency- dependent properties of the damping coefficient are inherent in this formulation. It has been shown that the variance in the prediction of the damping coefficient is small. The experimental apparatus is extremely easy to build, and the raw data necessary to make the calculations are readily obtained with standard modal techniques.

Author(s):
Austin, Stephen A. ; Hull, Andrew J. ; Kasper, Kent D. ; Hurdis, David A.
Author Organization(s):
NAVAL UNDERSEA WARFARE CENTER NEWPORT DIV NEW LONDON CT NEW LONDON DETACHMENT
Descriptive Note:
Technical rept.
Pagination:
0017

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

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

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
NUWC-NL-TR-10195
Monitor Series:
NUWC-NL
 Subject Terms
Joint Capability Areas:
JCA_1_Force Support; JCA_1.2.7_Experimentation; JCA_1.3_Human Capital Management; JCA_1.3.2_Personnel Management; JCA_1.2_Force Preparation; JCA_1.2.3_Educating; JCA_6_Net Centric
Communities of Interest:
Air Platforms
Descriptor(s):
*MEASUREMENT, *DAMPING, *STATISTICAL ANALYSIS, *COEFFICIENTS, FREQUENCY, IMPACT, IMPACT TESTS, EIGENVALUES, FREQUENCY RESPONSE, STANDARDS, RESPONSE, FORMULATIONS, ONE DIMENSIONAL, PREDICTIONS, FUNCTIONS
Field(s)/Group(s):
Statistics and Probability
Keyword(s):
DAMPING COEFFICIENT, INVERSE EIGENVALUE, FREQUENCY RESPONSE FUNCTION, MODAL IMPACT TEST, PE62936N
Report Date:
1992 Nov 06