Foolproof Methods for Frequency Response Measurements,

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.

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1984
Accession Number
ADP003677

Entities

People

  • H. G. D. Goyder

Organizations

  • United Kingdom Atomic Energy Authority

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Dynamics
  • Errors
  • Excitation
  • Frequency
  • Frequency Response
  • Frequency Shift
  • Measurement
  • Precision
  • Steady State
  • Transfer Functions
  • Universities
  • Vibration

Fields of Study

  • Engineering

Readers

  • Structural Dynamics.
  • Systems Analysis and Design