A framework for the capture and analysis of product usage data for continuous product improvement

H Voet, M Altenhof, M Ellerich… - Journal of …, 2019 - asmedigitalcollection.asme.org
Product improvement, usually through changes in design and functionality, is relying more
and more on the continuous analysis of large amounts of data. Product data can come from …

Fan tonal noise from aircraft aeroengines with short intake: A study at approach

S Guérin, A Holewa - International Journal of Aeroacoustics, 2018 - journals.sagepub.com
This work assesses the risks of increased fan noise for high bypass ratio aeroengines with
short intakes. The close proximity between the fan and inlet contributes to the increase in …

Tonal noise prediction of a modern turbofan engine with large upstream and downstream distortion

M Daroukh, S Moreau… - Journal of …, 2019 - asmedigitalcollection.asme.org
Ultra-high bypass ratio (UHBR) engines are designed as compact as possible and are
characterized by a short asymmetric air inlet and heterogeneous outlet guide vanes (OGVs) …

Fan Buzz-Saw Noise Under Intake Flow Distortion: A Computational Study

L Wu, AG Wilson - 30th AIAA/CEAS Aeroacoustics Conference (2024), 2024 - arc.aiaa.org
Steady intake flow distortion due to non-axisymmetric intake geometry and angle of attack of
the flight stream can affect various fan tone noise, especially fan buzz-saw noise. In this …

Shock wave generation and radiation from a turbofan engine under flow distortion

M Daroukh, C Polacsek, A Chelius - AIAA Journal, 2020 - arc.aiaa.org
This paper presents aeroacoustic investigations on a full-scale ultrahigh-bypass-ratio
engine with inflow distortion at transonic conditions. Computational fluid dynamics (CFD) …

Impact of calcium quantifications on stent expansions

P Dong, HG Bezerra, DL Wilson… - Journal of …, 2019 - asmedigitalcollection.asme.org
Severely calcified plaque is of great concern when planning and implementing a stenting
intervention. In this work, computational models were developed to investigate the influence …

Aircraft engine fan tone noise due to back-pressure distortion caused by a downstream pylon under high-speed conditions

S Kusuda, N Yamasaki, C Inoue, M Namba - Journal of Sound and …, 2024 - Elsevier
Experimental, computational fluid dynamics (CFD), and duct-acoustics theoretical studies
were conducted to investigate the mechanism of upstream noise propagation from fan …

Machine Learning Aided Low-Order Predictions of Fan Stage Broadband Interaction Noise

N Li, Y Zhang, J Winkler, CA Reimann, D Voytovych… - AIAA Journal, 2024 - arc.aiaa.org
A fast method for predicting turbofan fan-stage broadband interaction noise is being
developed. The downstream propagating acoustic power in the bypass duct due to the …

Fan-stage broadband interaction noise trends

N Li, B Watchmann, T Ramsarran, J Winkler… - 28th AIAA/CEAS …, 2022 - arc.aiaa.org
A large contributor to modern turbofan engine noise is broadband fan-stage interaction
noise. Previously, a low-order method for predicting the broadband interaction noise …

Modelling acoustic propagation in modern turbofan intakes using a multimodal method

B Mangin - 2023 - theses.hal.science
The analysis of noise generated by the rotating blades of turbofan engines encompasses
three aspects: the generation of acoustic sources, their propagation in the intake, and their …