Vibro-acoustic modeling of a free-flooded ring transducer using a radiation impedance matrix

Junsu Lee, Kyounghun Been, Wonkyu Moon, Department of Mechanical Engineering, Pohang University of Science and Technology, Republic of Korea, Space Launch Vehicle Research Directorate, Korea Aerospace Research Institute, Republic of Korea

Journal of Vibration and Control

Published online on April 10, 2026

Abstract

Journal of Vibration and Control, Ahead of Print.
Free-flooded ring (FFR) transducers are widely used low-frequency underwater transducers with broad bandwidth and compact size. This paper presents two modified lumped-parameter models (mLPMs) and a hybrid model for analyzing the electrical and acoustic ...