VIBRO-ACOUSTIC CALIBRATION FOR THE FEM SIMULATION OF A THIN-WALLED DUCT SYSTEM AND FAN HOUSING

Heidegger P, Czwielong F, Schoder S, Becker S, Kaltenbacher M (2025)

Publication Language: English

Publication Type: Conference contribution, Original article

Publication year: 2025

Event location: Malaga ES

Abstract

Evaluating the acoustic behavior of a ducted ventilation
system poses multiple challenges, e.g., possibly changing
cross-sections, a lack of symmetry due to a non-straight
layout, or a thin-walled structure acting as a bypass for
sound waves traveling to the exterior. These aspects can
be tackled via numerical simulation methods, like the finite
element method, but uncertainties remain. Examples
are the necessity to omit geometrical details for obtaining
a computable model, the unknown and often non-ideal behavior
of parts like the suspension or connecting joints,
and unknown material properties. This proceeding discusses
the calibration process for the vibroacoustic simulation
of a thin-walled aluminum duct and a centrifugalfan
housing belonging to a high-precision aeroacoustic
test rig.

Authors with CRIS profile

Felix Czwielong Lehrstuhl für Strömungsmechanik (LSTM) Stefan Becker Lehrstuhl für Strömungsmechanik (LSTM)

Involved external institutions

Technische Universität Graz AT Austria (AT)

How to cite

APA:

Heidegger, P., Czwielong, F., Schoder, S., Becker, S., & Kaltenbacher, M. (2025). VIBRO-ACOUSTIC CALIBRATION FOR THE FEM SIMULATION OF A THIN-WALLED DUCT SYSTEM AND FAN HOUSING. In Proceedings of the 11th Convention of the European Acoustics Association. Malaga, ES.

MLA:

Heidegger, Patrick, et al. "VIBRO-ACOUSTIC CALIBRATION FOR THE FEM SIMULATION OF A THIN-WALLED DUCT SYSTEM AND FAN HOUSING." Proceedings of the 11th Convention of the European Acoustics Association, Malaga 2025.

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