Accession Number : AD0717201

Title :   Brief Handbook for the Sum of Two Harmonics,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE AEROELASTIC AND STRUCTURES RESEARCH LAB

Personal Author(s) : Dugundji,John ; Hore,Prakash

Report Date : NOV 1970

Pagination or Media Count : 47

Abstract : A systematic illustration of the sum of two harmonics is presented. Various patterns for the response such as 'waviness', 'beats', and 'jiggles' are obtained. The general relation of these patterns to the frequencies and amplitudes of the two harmonics is indicated. The patterns are shown to be repeatable for phase shifts of generally less than 360 degrees between the two harmonics. Numerous and systematic examples for the responses are given over a wide range of frequencies, amplitudes, and phase angles. (Author)

Descriptors :   (*VIBRATION, HARMONIC ANALYSIS), FOURIER ANALYSIS, NONLINEAR SYSTEMS, PHASE SHIFT CIRCUITS, RESONANT FREQUENCY, AIRFRAMES

Subject Categories : Theoretical Mathematics
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE