Helicopter internal noise - An overview
Abstract
The basic mechanisms involved in the generation of helicopter cabin noise are discussed together with the engineering constraints and other issues relevant to the noise reduction task. Consideration is given to gearbox isolation, damping, soundproofing, inner cabin concept, and the low frequency problem.
- Publication:
-
Symposium on Internal Noise in Helicopters
- Pub Date:
- 1980
- Bibcode:
- 1980inh..symp....4L
- Keywords:
-
- Aircraft Compartments;
- Aircraft Noise;
- Helicopters;
- Noise Intensity;
- Noise Reduction;
- Gears;
- Helicopter Design;
- Low Frequencies;
- Low Noise;
- Specifications;
- Acoustics