Work

A condensed transfer function method as a tool for solving vibroacoustic problems

Year: 2015

Type: article

Abstract: Substructuring approaches are nowadays widely used to predict numerically the vibroacoustic behavior of complex mechanical systems. Some of these methods are based on admittance or mobility frequency transfer functions at the coupling interfaces. They have already been used intensively to couple subsystems linked by point contacts and enable to solve problems at higher frequency while saving computation costs. In the case of subsystems coupled along lines, a Condensed Transfer Function method is developed in the present paper. The admittances on the coupling line are condensed in order to reduce the number of coupling forces evaluated. Three variants are presented, where the transfer functions are condensed using three different functions. After describing the principle of the CTF method, simple structures will be given as test cases for validation.

Source: Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science

DOI: 10.1177/0954406215615627

Authors: Valentin Meyer, Laurent Maxit, Jean-Louis Guyader, Thomas Leissing, Christian Audoly

Institutions: Naval Group (France), Laboratoire Vibrations Acoustique, Institut National des Sciences Appliquées de Lyon

Language: English

Topic: Vehicle Noise and Vibration Control

Subfield: Automotive Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: green

Funder: Agence Nationale de la Recherche