Accession Number : ADA258214


Title :   The Direct Measurement of Damping Coefficients Using an Inverse Eigenvalue Method


Descriptive Note : Technical rept.


Corporate Author : NAVAL UNDERSEA WARFARE CENTER NEWPORT DIV NEW LONDON CT NEW LONDON DETACHMENT


Personal Author(s) : Austin, Stephen A ; Hull, Andrew J ; Kasper, Kent D ; Hurdis, David A


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a258214.pdf


Report Date : 06 Nov 1992


Pagination or Media Count : 17


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.


Descriptors :   *MEASUREMENT , *DAMPING , *STATISTICAL ANALYSIS , *COEFFICIENTS , FREQUENCY , IMPACT , IMPACT TESTS , EIGENVALUES , FREQUENCY RESPONSE , STANDARDS , RESPONSE , FORMULATIONS , ONE DIMENSIONAL , PREDICTIONS , FUNCTIONS


Subject Categories : Statistics and Probability


Distribution Statement : APPROVED FOR PUBLIC RELEASE