Rectification Effect on Solitary Waves in the Symmetric Y-shaped Granular Chain

TL;DR

This study numerically investigates how the rectification effect influences solitary wave propagation in a symmetric Y-shaped granular chain, highlighting the impact of branch angle and incident wave direction for potential acoustic diode applications.

Contribution

It introduces the effect of heterojunctions with mass mismatch and branch angle adjustments on solitary wave rectification in Y-shaped granular chains.

Findings

Heavy-light heterojunctions facilitate wave passing.

Adjusting branch angle improves rectification efficiency.

Results are relevant for designing acoustic diode devices.

Abstract

The rectification effect on the propagation of solitary waves in the symmetric Y-shaped granular chain is numerically investigated in this Letter. A heterojunction with mass mismatch occurs at the position of Y-junction by adjusting the branch angle. And the heavy-light heterojunction is more favorable for the solitary wave passing. The energy rectification efficiency can be improved by adjusting the branch angle and the direction of incident solitary wave. The results have particularly practical significance for the potential design of acoustic diode devices.