The Research of Acoustic Emission of a Low-Power Aircraft Engine-Reference-Cited by-同舟云学术

The Research of Acoustic Emission of a Low-Power Aircraft Engine

Published:2018-09-01 Issue:3 Volume:2018 Page:14-25
ISSN:2545-2835
Container-title:Transactions on Aerospace Research
language:en
Short-container-title:

Author:

Gęca Michał¹,Pietrykowski Konrad¹,Rosiński Karol¹

Affiliation:

1. Department of Thermodynamics, Fluid Mechanics and Aviation Propulsion Systems , Faculty of Mechanical Engineering, Lublin University of Technology , ul. Nadbystrzycka 36, 20-618 Lublin , Poland

Abstract

Abstract This paper presents the methodology and investigation of the sound power level produced by a radial piston aircraft engine operating at varied speeds. The research model aircraft engine of a maximum power of 5.5 kW with a two-bladed airscrew was placed on a test bend. Its sound power level was calculated from the sound pressure level measured at 9 measurement points distributed on a hemispherical surface in a confined space in line with PN-EN 3744. Mean sound power generated by the ASP FS400AR engine is 96 dB at idle (2,880 rpm) and 105 dB at a cruising speed (4,740 rpm). Accordingly, it can be concluded that a sound level meter registered a higher sound power level at the points in front of the model aircraft engine than at the points behind it, whereas the lowest sound power level was registered directly above the engine.

Publisher

Walter de Gruyter GmbH

Link

https://www.sciendo.com/pdf/10.2478/tar-2018-0019

Reference23 articles.

1. [1] Mazur, E., 2000: Hazards to the natural environment and economic and legal aspects of its protection (Zagrożenia środowiska przyrodniczego a ekonomiczno-prawne aspekty jego ochrony). Uniwersytet Szczeciński, Szczecin.

2. [2] Kijewski, T., 2002: „Aircraft and environment - noise and exhaust emissions” („Samolot a środowisko – hałas i emisja spalin”), Ph.D. thesis, Wydział Budowy Maszyn i Lotnictwa, Politechnika Rzeszowska.

3. [3] Szczeciński, S., 2009: Aircraft power units (Lotnicze zespoły napędowe), WAT, Warszawa.

4. [4] Cieślak, M., Rojek, M., 2013: „Owls’ silent flight inspires aerodynamic aircraft noise reduction” („Cichy lot sów inspiracją do redukcji aerodynamicznego hałasu lotniczego”), Prace Instytutu Lotnictwa, 229, 55-110.10.5604/05096669.1076172

5. [5] Muller, G., Moser, M., 2013: Handbook of Engineering Acoustics, Springer.