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Module 15. Gas turbine engine

Acoustic linings made from composite materials are used in what section of the engine?

  • Not used to suppress noise.
  • Hot section and Cold Section.
  • Cold section only.

Explanation

Composite acoustic linings are fitted in the cold (fan, intake and bypass) sections, where temperatures are low enough for the bonded honeycomb materials to survive while absorbing fan noise. The hot section's high temperatures would damage composite linings, so they are not used there.

Jordi asking:

i dont understand

Community Comments (4)

C
ciprian.serdin Posts: 2 17.08.2020 / 23:30
The acustic linings or panels are situate just before The fan or 1st stage compressor which îs part of the cold sectiin
J
Jordi Posts: 198 31.08.2020 / 09:02
thank you
H
hudson.dagge Posts: 1 25.07.2024 / 11:14
There is also acoustic panels located in the tailpipe however they are not made from composite materials.
J
Jordi Posts: 198 17.10.2024 / 16:14
thnanks

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