iPhoneAlle anzeigen
iPhone 11iPhone 11 ProiPhone 11 Pro MaxiPhone 12iPhone 12 ProiPhone 12 Pro MaxiPhone 12 miniiPhone 13iPhone 13 ProiPhone 13 Pro MaxiPhone 13 miniiPhone 14iPhone 14 PlusiPhone 14 ProiPhone 14 Pro MaxiPhone 15iPhone 15 PlusiPhone 15 ProiPhone 15 Pro MaxiPhone 16iPhone 16 PlusiPhone 16 ProiPhone 16 Pro MaxiPhone 16eiPhone 8iPhone 8 PlusiPhone SE 2020iPhone SE 2022iPhone XiPhone XRiPhone XSiPhone XS Max
Galaxy A-SerieAlle anzeigen
Galaxy A12Galaxy A13Galaxy A13 5GGalaxy A14Galaxy A15Galaxy A16Galaxy A17Galaxy A17 5GGalaxy A20eGalaxy A21Galaxy A22Galaxy A23Galaxy A24Galaxy A25Galaxy A26 5GGalaxy A32Galaxy A33Galaxy A34Galaxy A35Galaxy A36 5GGalaxy A37Galaxy A40Galaxy A41Galaxy A42Galaxy A50Galaxy A51Galaxy A52Galaxy A53Galaxy A54Galaxy A55Galaxy A56 5GGalaxy A57 5GGalaxy A70Galaxy A71Galaxy A72
Redmi SeriesAlle anzeigen
Redmi 10Redmi 13CRedmi 15 5GRedmi Note 10Redmi Note 10 ProRedmi Note 11Redmi Note 11 ProRedmi Note 11 Pro Plus 5GRedmi Note 11sRedmi Note 12Redmi Note 12 5GRedmi Note 12 ProRedmi Note 12 Pro 5GRedmi Note 12 Pro PlusRedmi Note 13Redmi Note 13 5GRedmi Note 13 ProRedmi Note 13 Pro PlusRedmi Note 14Redmi Note 14 Pro PlusRedmi Note 15Redmi Note 15 5GRedmi Note 15 ProRedmi Note 15 Pro 5GRedmi Note 15 Pro Plus 5GRedmi Note 8Redmi Note 8 ProRedmi Note 9Redmi Note 9 Pro
- Startseite
Bücher Englische Bücher Wissen & Bildung Naturwissenschaft, Medizin, Informatik, Technik Technik Luft- und Raumfahrttechnik The Influence of Shape-Variability on the Design and Aerodynamics of a Transonic Turbofan Rotor
Derzeit nicht verfügbar
Handgeprüfte Gebrauchtware
Bis zu 50 % günstiger als neu
Der Umwelt zuliebe
The Influence of Shape-Variability on the Design and Aerodynamics of a Transonic Turbofan Rotor
Marcel Seidler (Broschiert, Englisch)
★★★★★
☆☆☆☆☆ Keine Bewertungen vorhanden
Optischer Zustand
Beschreibung
Sustainability is becoming increasingly important in aircraft engine design. While the engine operates at high efficiencies during its design flight phase, lower efficiencies are provoked for the remaining flight mission. As the fan has become the main thrust generating component, improving its off-design efficiency is a promising approach to boost the sustainability of future air transport… systems. To reduce flow separation and performance deficits at off-design flow conditions, this research investigates the benefits of a shape-variable fan rotor. With the goal to adjust the twist and cambering of the rotor, piezoelectric Macro-Fiber-Composite actuators are integrated into the metallic blading of the fan rotor. Depending on the actuators’ fiber orientation, a voltage supply induces an elastic deformation of the actuators, which leads to the morphing of the turbofan rotor. A design methodology is derived, to align the structurally feasible deformations with the aerodynamic off-design requirements. Here, special emphasis is given to fan operating points at throttled conditions. The design methodology allows to numerically quantify the desirable and achievable aerodynamic effects, induced by the shape-adaption. This includes a re-engineering routine for the morphed rotor geometries, as well as Quasi-3D and 3D CFD calculations to account for the blade-shock interaction and secondary flow phenomena. The structural morphing methodology is adapted to derive actuator configurations suited for the specified aerodynamic off-design scenarios. The effect of varying rotor geometries on the feasible angular deformations is also considered, including 3D design measures. The coupled aerostructural design methodology is initially applied to the well-researched NASA rotor 67. As the deformations of the transonic test case rotor become highest at the blade tip, the morphing effect exhibits a strong dependency on the blade-shock interaction. In the performance map, different morphing effects are therefore predicted, depending on the fraction of the blade span that exhibits a passage shock. By transferring the integral morphing effects to the performance map of the fan of the V2500-A1 engine, the impact of different actuator configurations on flight mission level is assessed. Here, beneficial effects on fuel consumption are already observed for angular deformations below 1°. The conclusions drawn are finally exploited to propose a scaled fan design for a test rig application. This results in a low hub-to-tip ratio fan design with a slender and forward swept blade, allowing for an improved twist and camber angle variability. With respect to the stationary working line of the fan stage, efficiency as well as thrust-to-power ratio improvements are achieved, especially for reduced rotational speeds and operating points close to the stability limit of the fan. Dieses Produkt haben wir gerade leider nicht auf Lager.
Handgeprüfte Gebrauchtware
Bis zu 50 % günstiger als neu
Der Umwelt zuliebe
Technische Daten
Erscheinungsdatum
21.05.2026
Sprache
Englisch
EAN
9783912347012
Herausgeber
Technische Uni Braunschweig NFL
Sonderedition
Nein
Autor
Marcel Seidler
Seitenanzahl
175
Auflage
1
Einbandart
Broschiert
Schlagwörter
turbofan, design, transonic, shape-adaption, aircraft engine
Thema-Inhalt
T - Technologie, Ingenieurswissenschaft, Landwirtschaft, Industrieprozesse
Höhe
210 mm
Breite
15 cm
-.-
★★★★★
☆☆☆☆☆ Leider noch keine Bewertungen
Leider noch keine Bewertungen
Sicher bei rebuy kaufen
Schreib die erste Bewertung für dieses Produkt!
Wenn du eine Bewertung für dieses Produkt schreibst, hilfst du allen Kund:innen, die noch überlegen, ob sie das Produkt kaufen wollen. Vielen Dank, dass du mitmachst!
Sicher bei rebuy kaufen