Characterization and Optimization of Sound Transmission Loss of PVC Foam Sandwich Structure Reinforced by Carbon Fiber Columns DOI Creative Commons
Kangle Li, Zhiwei Zhou, Jichao Lei

et al.

Journal of Marine Science and Engineering, Journal Year: 2025, Volume and Issue: 13(2), P. 380 - 380

Published: Feb. 19, 2025

This study presents a foam sandwich structure reinforced with carbon fiber columns (FSS-CFC), which exhibits strong mechanical and sound insulation properties. The FSS-CFC consists of two face-sheets polyvinyl chloride (PVC) core containing multiple CFC cylinders arranged in periodic array. transmission loss (STL) measured acoustic tube experiments closely aligns the finite element simulation results, validating reliability present research. Through characteristic analyses, reveals mechanism FSS-CFC, identifying three distinct dips caused by standing wave resonance core, column-driven same-direction bending vibrations, column-constrained opposite-direction vibrations sheets. It is also demonstrated that performance insensitive to hydrostatic pressure changes. Finally, optimized genetic algorithm MATLAB COMSOL. displays good improvements both compared initial structure. average STL frequency 500 Hz 25,000 has increased 3 dB, representing an improvement approximately 25%. could provide valuable insights for development pressure-resistant use on deep-water vehicles.

Language: Английский

Design and laboratory validation of multistructured acoustic resonators for the attenuation of airborne machinery noise in ships DOI Creative Commons

Mathis Vulliez,

Giuseppe Catapane,

Marc-André Guy

et al.

Ocean Engineering, Journal Year: 2025, Volume and Issue: 322, P. 120515 - 120515

Published: Feb. 5, 2025

Language: Английский

Citations

1
Characterization and Optimization of Sound Transmission Loss of PVC Foam Sandwich Structure Reinforced by Carbon Fiber Columns DOI Creative Commons
Kangle Li, Zhiwei Zhou, Jichao Lei

et al.

Journal of Marine Science and Engineering, Journal Year: 2025, Volume and Issue: 13(2), P. 380 - 380

Published: Feb. 19, 2025

This study presents a foam sandwich structure reinforced with carbon fiber columns (FSS-CFC), which exhibits strong mechanical and sound insulation properties. The FSS-CFC consists of two face-sheets polyvinyl chloride (PVC) core containing multiple CFC cylinders arranged in periodic array. transmission loss (STL) measured acoustic tube experiments closely aligns the finite element simulation results, validating reliability present research. Through characteristic analyses, reveals mechanism FSS-CFC, identifying three distinct dips caused by standing wave resonance core, column-driven same-direction bending vibrations, column-constrained opposite-direction vibrations sheets. It is also demonstrated that performance insensitive to hydrostatic pressure changes. Finally, optimized genetic algorithm MATLAB COMSOL. displays good improvements both compared initial structure. average STL frequency 500 Hz 25,000 has increased 3 dB, representing an improvement approximately 25%. could provide valuable insights for development pressure-resistant use on deep-water vehicles.

Language: Английский

Citations

0