Study the effect of thickness on the natural and resonant frequencies of polyurethane foams

Mehran Heidari, Abolfazl Hasani Baferani, Department of Mechanical Engineering, Amirkabir University of Technology , Tehran Polytechnic, Department of Mechanical Engineering, Tafresh University

Journal of Vibration and Control

Published online on July 31, 2025

Abstract

Journal of Vibration and Control, Ahead of Print.
In this paper, the effects of thickness variations on the natural and resonant frequencies of polyurethane foams have been studied. The governing Biot’s equations are solved using an analytical method, and the natural and resonant frequencies are ...