RESONANCE 2023

Session

11 juil. 2023 à 10:40

Toulouse

Présidents de session

JISFA 1 / Aircraft Exterior Noise

• Frank Simon ()

Liste des contributions Ordre du jour

262. JISFA1#1 - Engine noise: panorama of future architectures

Stefan Moal (AIRBUS, Toulouse)

11/07/2023 10:40

As a key brick of aviation decarbonization challenge, Airbus is curently exploring many engine architectures. This presentation will give an overview of the various engines currently studied, concentrating on noise aspects.

263. JISFA1#2 - Combustion noise and engine noise: current computational capabilities and fuel expected issues

Laurent Gicquel (CERFACS)

11/07/2023 11:00

Combustion noise is becoming an increasing subject of interest and has been brought forward with the uprise of premixed combustors. This combustor technology which has entered in production and comes with lower pollutant emissions of new engines, also comes with a sensitivity to the engine acoustics and the potential triggering of new and unwanted noises heard outside the engine. Indeed, such...

264. JISFA1#3 - To be defined

11/07/2023 11:20

265. JISFA1#4 - Reverse problems and Analytical Sensitivity analysis for landing gear noise calibration and prediction

Paul Hanappier (Safran Landing Systems - Vélizy)

11/07/2023 11:40

Reverse problems are used in order to calibrate landing gears noise spectra. The idea consists to minimize a least square function where the SMITH semi-empirical spectrum is optimized with respect to the experimental measured data. Hence, the SMITH “empirical” parameters are the control parameters for these acoustics optimization problems. The number of these optimization parameters can...

267. JISFA1#5 - Noise of realistic slats with tracks

Fleury Vincent

11/07/2023 12:00

Aircraft noise needs to be mitigated to be compliant with certification requirements and operational restrictions imposed by airports. Aircraft noise comprises engine noise and airframe noise, which itself consists mainly of landing gear noise, slat noise and flap noise. The presentation is focused on noise produced by slats, which significantly contribute to aircraft noise at...

266. JISFA1#6 - Round table about JISFA 1

11/07/2023 12:20

Additional Q&A and open discussion about the session topic.