614 research outputs found
Rotational inertia interface in a dynamic lattice of flexural beams
The paper presents a novel analysis of a transmission problem for a network
of flexural beams incorporating conventional Euler-Bernoulli beams as well as
Rayleigh beams with the enhanced rotational inertia. Although, in the
low-frequency regime, these beams have a similar dynamic response, we have
demonstrated novel features which occur in the transmission at higher
frequencies across the layer of the Rayleigh beams.Comment: 20 page
Quasi-periodicity and multi-scale resonators for the reduction of seismic vibrations in fluid-solid systems
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
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