Accession Number : AD0288079

Title :   RESULTS OF LOSS FACTOR MEASUREMENTS ON STEEL AND CONCRETE BEAMS USING A VISCOELASTIC OR SAND DAMPING SYSTEM

Corporate Author : AERONAUTICAL SYSTEMS DIV WRIGHT-PATTERSON AFB OH

Personal Author(s) : WOLF, NELSON D.

Report Date : SEP 1962

Pagination or Media Count : 51

Abstract : The results of tests to measure loss factors on steel and concrete beams using a viscoelastic or sand damping system are discussed. The significance of the tests using the viscoelastic material was the rather large size of the system; for the sand damping system, data was obtained at frequencies down to 36 cps. Numerous configurations are tested. For the sand damping case, loss factors are measured as a function of acceleration. (Author)

Descriptors :   *BEAMS (ELECTROMAGNETIC), *BEAMS (STRUCTURAL), *CONCRETE, *SANDWICH PANELS, *STEEL, DAMPING, ELASTIC PROPERTIES, FATIGUE (MECHANICS), FREQUENCY, MECHANICS, SAND, STRESSES, TEST METHODS, THEORY, VIBRATION, VISCOSITY.

Distribution Statement : APPROVED FOR PUBLIC RELEASE