Accession Number : AD0445028


Title :   DETERMINATION OF DAMPING CONSTANTS FOR A DRY FRICTION-VISCOUS DAMPED OSCILLATOR


Corporate Author : NAVAL CIVIL ENGINEERING LAB PORT HUENEME CA


Personal Author(s) : DaDeppo, D A


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/445028.pdf


Report Date : 03 Aug 1964


Pagination or Media Count : 30


Abstract : The method of least squares is applied to the problem of analyzing a decay record to determine the damping constants for a dry friction-viscous damped, single-degree-of-freedom system. Solution of the set of non-linear equations which yield the constants is obtained by applying the Newton-Raphson method of iteration. Sample calculations show that the method is not well suited for manual computation. A program is presented for calculating the damping constants by means of a digital computer.


Descriptors :   *VIBRATORS(MECHANICAL) , VIBRATION , COMPUTER PROGRAMMING , DAMPING , NUMERICAL METHODS AND PROCEDURES , FRICTION , VISCOSITY , LINEAR SYSTEMS , MATHEMATICAL ANALYSIS


Subject Categories : Machinery and Tools


Distribution Statement : APPROVED FOR PUBLIC RELEASE