Accession Number : AD0484558

Title :   THE USE OF CROSS CORRELATION IN STUDYING THE RESPONSE OF LIGHTLY DAMPED STRUCTURES TO NOISE.

Descriptive Note : Summary rept. Nov-64-Nov 65,

Corporate Author : SOUTHAMPTON UNIV (UNITED KINGDOM)

Personal Author(s) : Clarkson, B. L.

Report Date : MAY 1966

Pagination or Media Count : 21

Abstract : It is the purpose of this note to study the application of cross - correlation techniques to determine the overall frequency response to random forces of a typical aerospace vehicle structure. The effect of truncation of the cross correlation function in the estimated cross spectrum is discussed with reference to a single degree of freedom system excited by white noise. Application to multi degree of freedom systems is discussed and an ullustration is given of the use of the technique in the analysis of panel vibration in a typical rear fuselage excited by jet noise. (Author)

Descriptors :   (*JET ENGINE NOISE, DAMPING), (*CORRELATION TECHNIQUES, VIBRATION), AIRCRAFT, PRESSURE, MATHEMATICAL ANALYSIS, FUSELAGES.

Subject Categories : Aircraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE