Model of sound and vibration discomfort in helicopter cabins

Noise and vibrations are major sources of discomfort in helicopter cabins manufacturers seeking to estimate passenger based on noise vibration measurements. To this end, series perceptive experiments have been conducted link subjective assessments objective Firstly, it has shown that is governed by perceived intensity an acoustic comfort equation established a sound loudness metric. A second tests presented document aims the global due simultaneous vibrations. Discomfort indicators specific were used create equation. This shows similar contribution from two but demonstrates interaction term which disadvantages if one dominant.