Publication detail

Extraction of tortuosity of melamine foam from ultrasonic transmission measurements: experimental improvement

GOMEZ, T. S. JUN, D. CUENCA, J. SEBAA, N., DE RYCK, L., ARMSTRONG, R., PIANA, E., and GLORIEUX, C.

Original Title

Extraction of tortuosity of melamine foam from ultrasonic transmission measurements: experimental improvement

Type

conference paper

Language

English

Original Abstract

This work addresses the influence of experimental artefacts and the limitations of fitting models used to de- termine porous material parameters by an experiment exploiting ultrasound transmission, with an emphasis on tortuosity. The sensitivity of the transmitted ultrasonic signal to geometrical factors, such as transducer and sample alignment, as well as transmitter-receiver distance-dependent diffraction, is reported, and the influence of signal bandwidth and dynamic range on the signal analysis is assessed. To establish the an- ticipated limitations of the selected fitting models, the different effects are investigated by fitting porous material property values in different controlled scenarios of an ultrasonic transmission setup. Validation of determined tortuosity values is done by comparison with values extracted from impedance tube measure- ments in the audio frequency range.

Keywords

Pressure vessels; Ultrasonic testing; Ultrasonic transducers; Dynamic range; Fitting model; Geometrical factors; Materials parameters; Melamine foams; Signal bandwidth; Signal dynamics; Transmission measurements; Ultrasonic signals; Ultrasound transmissions; Ultrasonic transmission

Authors

GOMEZ, T. S.; JUN, D.; CUENCA, J.; SEBAA, N., DE RYCK, L., ARMSTRONG, R., PIANA, E., and GLORIEUX, C.

Released

9. 9. 2024

Publisher

Katholieke Universiteit Leuven, Department of Mechanical Engineering

Location

Leuven

ISBN

9789082893175

Book

Proceedings of ISMA 2024 - International Conference on Noise and Vibration Engineering and USD 2024 - International Conference on Uncertainty in Structural Dynamics

Pages from

313

Pages to

322

Pages count

10

URL

https://www.proceedings.com/77246.html

BibTex

@inproceedings{BUT190096,
  author="GOMEZ, T. S. and JUN, D. and CUENCA, J. and SEBAA, N., DE RYCK, L., ARMSTRONG, R., PIANA, E., and GLORIEUX, C.",
  title="Extraction of tortuosity of melamine foam from ultrasonic transmission measurements: experimental improvement",
  booktitle="Proceedings of ISMA 2024 - International Conference on Noise and Vibration Engineering and USD 2024 - International Conference on Uncertainty in Structural Dynamics",
  year="2024",
  pages="313--322",
  publisher="Katholieke Universiteit Leuven, Department of Mechanical Engineering",
  address="Leuven",
  isbn="9789082893175",
  url="https://www.proceedings.com/77246.html"
}