Transfer function representation by cumulative harmonic analysis (CHA)

Abstract

This article describes cumulative harmonic analysis (CHA) that was achieved by introducing a spectral accumulation function into Berman and Fincham's conventional cumulative spectral analysis(CSA), thus enabling potential new areas in cumulative analysis to be explored. This article can be represented some examples; the principal resonant frequency estimation before it starts howling, and structural health monitoring by CHA of random vibration.