Profilinformation Flygteknink 2019, Ingo Staack

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1 Profilinformation 2019 Flygteknik Roland Gårdhagen Ingo Staack Aeronautical Engineering Masterprofil Flygteknik Profilinformation Flygteknink 2019, Ingo Staack 1

2 Från koncept till prototyp ett helhetsperspektiv Varför flygteknik? Leder den teknologiska utvecklingen Flera utmanande tillämpningar och områden Industrirelevanta projekt och intressanta exjobb Intressanta jobb Goda karriärmöjligheter 2

3 Flygteknik termin 1 Aerodynamik Flyglära Tekniska system Flygmekanik Lätta konstruktioner Strukturdynamik Flygplansdesign Aerodynamik Hållfasthet och struktur Specialiseringar inom LiU AER 3

4 Spår: Flygplansdesign Tekniska system Flygplanskonstruktion Produktmodellering Projekt Spår: Aerodynamik Aerodynamik CFD Aerodynamisk formoptimering Projekt PANEL TEMPERATURE Introduction Results A number of panels containing switches and indicators exist in the SAAB JAS Figure Gripen aircraft. These are usually placed in close hot areas and are therefore Maximum in risk to be overheated and cause failures if they not are exposed to sufficient temperature in cooling. The goal of this study is to verify that this kind of panel not risks to be the overheated during operation. components. Group 0 Petter Ekman Aerodynamically heated surfaces with T = 95 C Figure 4. Top Right: Worst case for aluminium components. Figure 1.Complete Geometry. Bottom Right: Worst case for plastic components. Method The Geometry was simplified in order to be able to create a mesh. A CFD (Computational Fluid Dynamics) Simulation was made on it in order to get a view over the flow condition. The boundary conditions were set after the flow field with heat flux and heat coefficients representing the flow and radiation. A mesh independency was made in order to verify non mesh dependent results. Concluisions A heat transfer simulations has been made for a panel Air flow velocity [m/s] installed in a military aircraft. Maximum temperature for the electric components is just above 80 C and occurs when the air flow temperature is 70 C and aluminium is used for the components. 80 C should however, not be a problem even for plastic details as the melting temperature usually is around 120 C for plastics. The air flow temperature affects the component temperatures the most and thereby is the need of higher speed flows not large. However, with slow moving air the risk of temperature rise in the air which will lead to higher component temperature a larger risk. Better cooling could easily be possible (at least in an aerodynamic point of view) Figure 2. Air flow velocity for the simplified by modifying the plate so more of the flow hits the components instead of panel at bulk air flow velocity of 2 m/s. the plate 4

5 Spår: struktur/hållfasthetslära FEM Strukturdynamik Lätta konstruktioner Projekt ett helhetsperspektiv Aerodynamik Flygplansdesign Struktur Optimering Framdrivning och motorer Värmeöverföring Produktmodellering - för anställningsbara ingenjörer! 5

6 Tidigare exjobb (Exempel) Saab Volvo Airbus Airinnova Intuitive aerial Cevt Scania Nevs Liu ILA, Berlin 2014 (LUFF: Studentprojekt 2016: Amphibian-Bush Flygplan (AmBush) två svåra krav (drag, min. hastighet, konfiguration) ny metod för modelltillverkning: CNC fräsning av spanter, ribs, osv. vacuumformad plast för yttre geometri/skin leda till snabbt resultat utan mycket labbarbete 6

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8 Studentprojekt 2017: Detail Design på en Elektrisk Ultralättralätt (El UL) 8

9 Videos: Impressioner från Kurser och Studentprojekt The NEMO project: s Projekt: The MIDJET project: 45&feature=iv&src_vid=rkdh2GYgnd4&v=cxtaOKIJG2E Kurs TMAL51 Flygplandesign (local) Generic Future Fighter FS2020: Tack för uppmärksamheten! Frågor? Kontakt: 9