Browsing AE Research Publications by Subject "Acoustic wave absorption"

Now showing items 1-3 of 3

    • 3D printed multifunctional low-frequency sound absorbers 

      Johnston, William; Kankanamalage, Pulitha G.; Sharma, Bhisham N. (Institute of Noise Control Engineering, 2021-08-01)
      Cellular porous materials are an attractive choice for lightweight structural design. However, though their open porous architecture is ideally suited for multifunctional applications, their use is typically limited by the ...

    • Acoustic absorption properties of granular silica aerogels 

      Dasyam, Amrutha; Khaleel, Ola; Sharma, Bhisham N. (Institute of Noise Control Engineering, 2020-10-12)
      Aerogels are a class of synthetic materials derived using supercritical drying to extract the liquid component of a gel and replacing it with a gas. This process results in the formation of an ultra-lightweight nanoporous ...

    • Low-frequency noise control using layered granular aerogel and limp porous media 

      Xue, Yutong; Dasyam, Amrutha; Bolton, J. Stuart; Sharma, Bhisham N. (Institute of Noise Control Engineering, 2021-08-01)
      The acoustic absorption of granular aerogel layers with a granule sizes in the range of 2 to 40 μm is dominated by narrow-banded, high absorption regions in the low-frequency range and by reduced absorption values at higher ...