Quasi-periodicity and multi-scale resonators for the reduction of seismic vibrations in fluid-solid systems

TL;DR

This paper introduces a mathematical model and systematic approach for reducing seismic vibrations in fluid-filled containers using multi-scale resonators, validated through analytical and numerical simulations.

Contribution

It presents a novel analytical framework for vibration suppression in fluid-solid systems with multi-scale resonators, incorporating full fluid-solid interaction and dispersion analysis.

Findings

Effective vibration reduction within targeted frequency intervals

Validated analytical model with numerical simulations

Applicable to finite and periodic multi-scale systems

Abstract

This paper presents a mathematical model for an industry-inspired problem of vibration isolation applied to elastic fluid-filled containers. A fundamental problem of suppression of vibrations within a finite-width frequency interval for a multi-scale fluid-solid system has been solved. We have developed a systematic approach employing full fluid-solid interaction and dispersion analysis, which can be applied to finite and periodic multi-scale systems. The analytical findings are accompanied by numerical simulations, including frequency response analyses and transient regime computations.