Comparative Study of a Powerplant Life Consumption Rate When Installed in Two Different Aircraft Variants

The Hellenic Air Force (HAF) operates both EMB-145 and EMB-135 LR versions of Embraer aircraft, used in surveillance and civil missions respectively. These aircraft are equipped with the same version of Rolls Royce, AE 3007 turbofan engine. This study aims to quantify and compare the life consumptio...

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Autores principales:	Ioannis Templalexis, Ioannis Lionis, Nikolaos Christou
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	creep-life usage engine loading engine lifing aircraft missions Motor vehicles. Aeronautics. Astronautics TL1-4050
Acceso en línea:	https://doaj.org/article/c9dd078caa1f4d9b85c3f02d91aecf06
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id	oai:doaj.org-article:c9dd078caa1f4d9b85c3f02d91aecf06
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spelling	oai:doaj.org-article:c9dd078caa1f4d9b85c3f02d91aecf062021-11-25T15:57:21ZComparative Study of a Powerplant Life Consumption Rate When Installed in Two Different Aircraft Variants10.3390/aerospace81103272226-4310https://doaj.org/article/c9dd078caa1f4d9b85c3f02d91aecf062021-11-01T00:00:00Zhttps://www.mdpi.com/2226-4310/8/11/327https://doaj.org/toc/2226-4310The Hellenic Air Force (HAF) operates both EMB-145 and EMB-135 LR versions of Embraer aircraft, used in surveillance and civil missions respectively. These aircraft are equipped with the same version of Rolls Royce, AE 3007 turbofan engine. This study aims to quantify and compare the life consumption rate of this engine when installed in each of the two aircraft variants. Two typical missions, one for each variant, were constructed based on mission profile data dictated by the aircraft commanders. For each mission profile segment, corresponding engine data were matched out of the engine recordings archives held by the Hellenic Air Force. The life consumption rate was based on the Low Cycle Fatigue (LCF) and creep cumulative detrimental effect on the rotor blades of the 1st High-Pressure Turbine stage. For the LCF, the rainflow method was used to determine the respective loading cycles, whereas the Larson - Miller parameter method was used to determine the consumed life fractions due to creep. The main conclusion of the study was that the engine when installed in the EMB-145 military variant, is much more loaded. Despite the fact absolute life consumption values could hide a great level of uncertainty, the comparative outcomes wherein errors are, to a certain extent, cancelled out, could be used as a rule of thumb when monitoring engine life consumption rates.Ioannis TemplalexisIoannis LionisNikolaos ChristouMDPI AGarticlecreep-life usageengine loadingengine lifingaircraft missionsMotor vehicles. Aeronautics. AstronauticsTL1-4050ENAerospace, Vol 8, Iss 327, p 327 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	creep-life usage engine loading engine lifing aircraft missions Motor vehicles. Aeronautics. Astronautics TL1-4050
spellingShingle	creep-life usage engine loading engine lifing aircraft missions Motor vehicles. Aeronautics. Astronautics TL1-4050 Ioannis Templalexis Ioannis Lionis Nikolaos Christou Comparative Study of a Powerplant Life Consumption Rate When Installed in Two Different Aircraft Variants
description	The Hellenic Air Force (HAF) operates both EMB-145 and EMB-135 LR versions of Embraer aircraft, used in surveillance and civil missions respectively. These aircraft are equipped with the same version of Rolls Royce, AE 3007 turbofan engine. This study aims to quantify and compare the life consumption rate of this engine when installed in each of the two aircraft variants. Two typical missions, one for each variant, were constructed based on mission profile data dictated by the aircraft commanders. For each mission profile segment, corresponding engine data were matched out of the engine recordings archives held by the Hellenic Air Force. The life consumption rate was based on the Low Cycle Fatigue (LCF) and creep cumulative detrimental effect on the rotor blades of the 1st High-Pressure Turbine stage. For the LCF, the rainflow method was used to determine the respective loading cycles, whereas the Larson - Miller parameter method was used to determine the consumed life fractions due to creep. The main conclusion of the study was that the engine when installed in the EMB-145 military variant, is much more loaded. Despite the fact absolute life consumption values could hide a great level of uncertainty, the comparative outcomes wherein errors are, to a certain extent, cancelled out, could be used as a rule of thumb when monitoring engine life consumption rates.
format	article
author	Ioannis Templalexis Ioannis Lionis Nikolaos Christou
author_facet	Ioannis Templalexis Ioannis Lionis Nikolaos Christou
author_sort	Ioannis Templalexis
title	Comparative Study of a Powerplant Life Consumption Rate When Installed in Two Different Aircraft Variants
title_short	Comparative Study of a Powerplant Life Consumption Rate When Installed in Two Different Aircraft Variants
title_full	Comparative Study of a Powerplant Life Consumption Rate When Installed in Two Different Aircraft Variants
title_fullStr	Comparative Study of a Powerplant Life Consumption Rate When Installed in Two Different Aircraft Variants
title_full_unstemmed	Comparative Study of a Powerplant Life Consumption Rate When Installed in Two Different Aircraft Variants
title_sort	comparative study of a powerplant life consumption rate when installed in two different aircraft variants
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/c9dd078caa1f4d9b85c3f02d91aecf06
work_keys_str_mv	AT ioannistemplalexis comparativestudyofapowerplantlifeconsumptionratewheninstalledintwodifferentaircraftvariants AT ioannislionis comparativestudyofapowerplantlifeconsumptionratewheninstalledintwodifferentaircraftvariants AT nikolaoschristou comparativestudyofapowerplantlifeconsumptionratewheninstalledintwodifferentaircraftvariants
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Comparative Study of a Powerplant Life Consumption Rate When Installed in Two Different Aircraft Variants

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