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Transactions on Aerospace Research
Volume 2023 (2023): Numero 1 (March 2023)
Accesso libero
Vibroacoustic Helicopter Impact on Elevated Helipad
Sławomir Cieślak
Sławomir Cieślak
e
Wiesław Krzymień
Wiesław Krzymień
| 17 mar 2023
Transactions on Aerospace Research
Volume 2023 (2023): Numero 1 (March 2023)
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Pubblicato online:
17 mar 2023
Pagine:
1 - 9
Ricevuto:
14 giu 2022
Accettato:
12 dic 2022
DOI:
https://doi.org/10.2478/tar-2023-0001
Parole chiave
mechanical engineering
,
helipad
,
helicopter
,
noise
,
vibrations
,
impact
© 2023 Sławomir Cieślak et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Figure 1.
EC-135 helicopter over the tested helipad.
Figure 2.
The building scheme and the location of measuring points.
Figure 3.
Sound pressure level recorded during helicopter manoeuvres on the landing pad.
Figure 4.
Sound pressure level recorded during helicopter manoeuvres indoors.
Figure 5.
Vibration acceleration during the helicopter manoeuvres: on the landing pad (blue curve); and indoors (green curve).
Figure 6.
Amplitude-frequency characteristics of noise measured on the landing pad, corrected according to curve A.
Figure 7.
Amplitude-frequency characteristics of noise measured indoors, corrected according to curve A.
Figure 8.
Amplitude-frequency graphs of the vibrations measured: on the landing pad (blue diagram); and indoors (green diagram).
Figure 9.
Amplitude-frequency characteristics of the noise measured indoors (uncorrected).
Figure 10.
Amplitude-frequency characteristics of the noise measured on the landing pad (uncorrected).
Figure 11.
Amplitude-frequency graphs of the measured vibrations (uncorrected).