Accession Number : ADP003677

Title :   Foolproof Methods for Frequency Response Measurements,

Corporate Author : UNITED KINGDOM ATOMIC ENERGY AUTHORITY LONDON (ENGLAND)

Personal Author(s) : Goyder,H. G. D.

Report Date : 1984

Pagination or Media Count : 10

Abstract : It is the objective of this paper to present three techniques which greatly enhance the accuracy and precision of structural vibration measurements. The measurement techniques considered below all relate to the frequency response function or transfer function which express the steady state response of a structure to a harmonic excitation. Three problems which cause significant errors in the measurement of frequency response functions are: Nonlinearities and Noise; Errors due to electrodynamic shakers; and Interpretation and model fitting of frequency response functions. Techniques for overcoming these problems are presented below.

Descriptors :   *Structural mechanics, *Test methods, *Frequency response, *Measurement, Vibration, Structural mechanics, Problem solving, Errors

Distribution Statement : APPROVED FOR PUBLIC RELEASE