Passive acoustic liners for aero-engine noise control: A review

Ma, Pengwei; Wang, Han; Li, Danwang; Yuan, Shanhu; Fan, Xueling

doi:10.1080/15376494.2024.2329309

Mechanics of Advanced Materials and Structures

2024

DOI: 10.1080/15376494.2024.2329309

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Passive acoustic liners for aero-engine noise control: A review

Pengwei Ma,

Han Wang,

Danwang Li

et al.

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2024

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Cited by 9 publications

References 164 publications

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The Energy Absorption Characteristics and Sound Absorption Behavior of In Situ Integrated Aluminum Lattice Structure Filled Tubes

Wang,

et al. 2024

Adv Eng Mater

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Lattice structures, as integrated structure‐function engineering materials, have developed rapidly in industrial fields. In this study, the in situ integrated solid/hollow aluminum lattice structure filled tubes are designed and manufactured by a selective laser melting technique. The effects of structure parameters on compressive properties, energy absorption, and sound absorption are analyzed. The in situ integrated aluminum lattice structure filled tubes with hollow lattice structure and strengthened hollow lattice structure can achieve a wide adjustment of compressive property (31.04–185.64 MPa) and energy absorption density (11.21–51.70 MJ m−3) in a narrow density range. The compressive property and energy absorption are superior compared with ex situ aluminum lattice structure filled tubes due to the interaction and metallurgical bonding between the thin‐walled tubes and the aluminum lattice structures. The hollow structure design and altering its structure parameters can regulate the sound absorption coefficient and the corresponding peak frequency (the highest absorption peak is 0.723 at 2098 Hz). In addition, the hollow structure design can realize double absorption peaks (0.360 at 1462 Hz and 0.503 at 2122 Hz), presenting the potential for broadband sound absorption. Eventually, superior integrated energy/sound absorption structures can be obtained by the hollow structure design and its corresponding optimization.

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The Energy Absorption Characteristics and Sound Absorption Behavior of In Situ Integrated Aluminum Lattice Structure Filled Tubes

Wang,

et al. 2024

Adv Eng Mater

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Dissipative stratified elastic metamaterials for broadband blast-wave impact mitigation

Liu,

Huang,

2024

Mechanics of Advanced Materials and Structures

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Double-panel metamaterial with multi-resonator for broadband sound insulation

Yao,

Guo,

Sun

et al. 2024

Mechanics of Advanced Materials and Structures

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Passive acoustic liners for aero-engine noise control: A review

Cited by 9 publications

References 164 publications

The Energy Absorption Characteristics and Sound Absorption Behavior of In Situ Integrated Aluminum Lattice Structure Filled Tubes

The Energy Absorption Characteristics and Sound Absorption Behavior of In Situ Integrated Aluminum Lattice Structure Filled Tubes

Dissipative stratified elastic metamaterials for broadband blast-wave impact mitigation

Double-panel metamaterial with multi-resonator for broadband sound insulation

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