A MANUAL FOR WAVEFORM ANALYSIS,

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Abstract:

In the analysis of vibration records a laborious harmonic analysis may frequently be avoided by direct comparison of the records with the waveforms obtained by combining simple harmonic functions of various frequencies, phase relations, and amplitudes. A reasonably accurate harmonic analysis of such records is essential for their interpretation. The purpose of this manual is to present a simple guide for the approximate analysis of such records. A group of sample curves and their sinusoidal components, which represent the most frequent forms encountered, has been plotted for the convenience of technical personnel working in the fields of vibration, sound, and electricity. The waveforms included are combinations of the fundamental and higher harmonics up to and including the fourth harmonic. Each combination is plotted for phase angles from 0 to 2 Pi taken in increments of pPi4.

Author(s):
Mathewson, Alice W.
Author Organization(s):
DAVID TAYLOR MODEL BASIN WASHINGTON D C
Annotation:
A manual for waveform analysis.
Pagination:
0027

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
DTMB-794
 Subject Terms
Joint Capability Areas:
JCA_5.3_Planning; JCA_5_Command and Control
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*INSTRUCTION MANUALS, HARMONIC ANALYSIS), (*HARMONIC ANALYSIS, INSTRUCTION MANUALS), WAVE ANALYZERS, VIBRATION, SOUND, ELECTRICITY, NUMERICAL ANALYSIS, POTENTIAL THEORY
Keyword(s):
WAVEFORMS
Report Date:
1952 Jan 01