Спектр стрічкового акустопроводу з періодично розподіленими діафрагмами. Сильний зв'язок

Abstract

The structure sensitive properties of frequency spectrum of stripe acoustic waveguide have been investigated in the work. The waveguide is formed by periodic translations of identical diaphragms along the structure axis. By applying conform mapping approach elementary cell of the such periodic waveguide was transformed into the canonical one with simple rectangular geometry. The parameters related to the frequency spectrum in the tight binding apptoximation were determined in terms of perturbation theory and expressed by geometric factores. The qualitative features of the spectrum have been considered too.