State-of-the-art finite-element methods for time-harmonic acoustics governed by the
Helmholtz equation are reviewed. Four major current challenges in the field are specifically …

In various engineering applications, the solution of the Helmholtz equation is required over a
broad frequency range. The simplest approach, which consists in solving the system of …

A reduced order model is developed for low frequency, undamped, fully coupled structural–
acoustic analysis of interior cavities backed by flexible structural systems. The reduced order …

In this work, a solution strategy is investigated for the resolution of multi‐frequency structural‐
acoustic problems including 3D modeling of poroelastic materials. The finite element …

Part III of this paper on normal modes in external acoustics is devoted to solution
reconstruction by using the frequency independent eigenvectors or normal modes that have …

This paper uses the ZPST multilayered shell element developed by Sulmoni et al. to
compute the dynamic response of multilayered viscoelastic structures such as windscreens …

This paper presents a case study on structural-acoustic optimization. It demonstrates the
potential of the application of normal modes in external acoustics for optimization of …

Multi-frequency calculation is usually very time-consuming due to the repeated numerical
integration for numerous frequencies in acoustic scattering or radiation problems. A series …

A Krylov subspace projection method which provides simultaneous solutions of the
Helmholtz equation at multiple frequencies in one solution step is presented. The projector …

Abstract Noise, Vibration and Harshness (NVH) is a critical consideration in the design of
automotive and aerospace vehicles for comfort, and fatigue of components arising from …