1. Department of Aerospace Engineering,Aachen University of Applied Sciences,Hohenstaufenallee 6,Aachen 52064, Germanye-mail: funke@fh-aachen.de
2. Department of Aerospace Engineering,Aachen University of Applied Sciences,Hohenstaufenallee 6,Aachen 52064, Germanye-mail: n.beckmann@fh-aachen.de
3. Department of Aerospace Engineering,Aachen University of Applied Sciences,Hohenstaufenallee 6,Aachen 52064, Germanye-mail: keinz@fh-aachen.de
4. RMIT University School of Engineering,124 La Trobe Street,Melbourne 3000, Victoria, Australiae-mail: sylvester.abanteriba@rmit.edu.au