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@article{Lu:2019:10.3390/ijtpp4030024,
author = {Lu, Y and Lad, B and Green, J and Stapelfeldt, S and Vahdati, M},
doi = {10.3390/ijtpp4030024},
journal = {International Journal of Turbomachinery, Propulsion and Power},
title = {Effect of geometry variability on transonic fan blade untwist},
url = {http://dx.doi.org/10.3390/ijtpp4030024},
volume = {4},
year = {2019}
}

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TY  - JOUR
AB  - Due to manufacturing tolerance and deterioration during operation, fan blades in the same engine exhibit geometric variability. The absence of symmetry will inevitably exacerbate and contribute to the complexities of running geometry prediction as the blade variability is bound to be amplified by aerodynamic and centrifugal loading. In this study, we aim to address the fan blade untwist related phenomenon known as alternate passage divergence (APD). As the name suggests, APD manifests as alternating passage geometry (and hence alternating tip stagger pattern) when the fan stage is operating close to/at peak efficiency condition. APD can introduce adverse influence on fan performance, aeroacoustics behaviour, and high cycle fatigue characteristics of the blade. The main objective of the study is to identify the parameters contributing to the APD phenomenon. In this study, the APD behaviours of two transonic fan blade designs are compared.
AU  - Lu,Y
AU  - Lad,B
AU  - Green,J
AU  - Stapelfeldt,S
AU  - Vahdati,M
DO  - 10.3390/ijtpp4030024
PY  - 2019///
TI  - Effect of geometry variability on transonic fan blade untwist
T2  - International Journal of Turbomachinery, Propulsion and Power
UR  - http://dx.doi.org/10.3390/ijtpp4030024
VL  - 4
ER  -

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