Results 121 to 130 of about 7,948 (233)

Advanced rotorcraft aeromechanics studies in the French-German SHANEL project

, 2009
The present paper gives an overview of the SHANEL research project (partly supported by the French DGAC and the German BMWA) which was started at the end of 2006 between the German and French Aerospace Research Centres DLR and ONERA, the University of ...
Costes, Michel, Raddatz, Jochen, Spiegel, Pierre, Pierre, D'Alascio, Alessandro, Embacher, Martin, Sudre, Laurent, Borie, Sylvie   +6 more
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Development of a test-rig for exploring optimal conditions of small unmanned aerial vehicle co-axial rotor systems

, 2010
Due to the recent increase in development and use of co-axial rotor system at the scale of small UAVs a greater understanding of the performance variables that affect the co-axial propulsion system at low Reynolds number operation has become increasingly
Brazinskas, Mantas, Prior, Stephen D., Bell, Jonathon, Erbil, Mehmet Ali, Karamanoglu, Mehmet   +4 more
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Application of Artificial Neural Networks to a Model of a Helicopter Rotor Blade for Damage Identification in Realistic Load Conditions. [PDF]

Sensors (Basel)
Ballarin P, Sala G, Macchi M, Roda I, Baldi A, Airoldi A.   +5 more
europepmc   +1 more source

Navier-Stokes Prediction of the Effect of the Skids on the Aerodynamics of Helicopter Fuselage in Forward Flight

, 2006
A series of three-dimensional Navier-Stokes computations were carried out with and without skids to investigate the influence of the skids on the flow field and aerodynamic forces acting on a helicopter fuselage in low Mach number forward flight under ...
Khier, Walid
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DLR’s S4 Rotor Code Validation With HART II Data: The Baseline Case

, 2007
S4 is the name of DLR’s high resolution rotor code for simulation of aerodynamics, dynamics, acoustics and flow field of isolated rotors like those being operated in the wind tunnel.
van der Wall, Berend G., Yin, Jianping
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Corkscrew Convexity- Helicopter Rotors

Where control theory overstepped into physics and engineering without proper synthesis.
openaire   +1 more source

Evaluation of Aeronautical Design Standard-33E Cargo Mission Requirements - Flight Tests with a CH-53G -

, 2006
Flight tests with a Sikorsky CH 53G cargo helicopter of the German Army were performed in Germany to evaluate the applicability and repeatability of the Aeronautical Design Standard (ADS)-33E-PRF cargo helicopter mission handling qualities requirements ...
Blanken, Chris L., Strecker, Gerhard, Höfinger, Marc   +2 more
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In Situ Dynamic Measurement of Blade Collision Warning Parameters for Coaxial Twin-Rotor Helicopters. [PDF]

Sensors (Basel)
Zheng W, Qiu Z.
europepmc   +1 more source

Nonlinear controller design for unmanned helicopter flight platform. [PDF]

Sci Rep
Ruchun W.
europepmc   +1 more source

The blind-test activity of the GOAHEAD project

, 2007
This paper describes the blind-test CFD activity of the EU 6th Framework project GOAHEAD. This blind-test activity has been used to evaluate and assess the helicopter CFD codes which are today in use in Europe and to scrutinize the wind-tunnel test ...
Costes, Michel, I. Humby, Boelen, Okko, Boelens, O.J., Vigevano, L., Steijl, R., van der Ven, H, Brocklehurst, A., L. Sudre, G. Barakos, D. Drikakis, Dietz, Markus, Pahlke, K., Humby, Isabel, LeChuiton, F., A. Brocklehurst, Knutzen, Bjoern, Kok, Johan, D’Alascio, Alessandro, Humby, I., Pahlke, KlausDieter, J. Ekaterinaris, Barakos, G., Sudre, L., M. Costes, M. Dietz, Renaud, Thomas, Kok, J., Zhong, B., Knutzen, B., J. Kok, R. Steijl, K. Pahlke, T. Renaud, Brocklehurst, Alan, B. Knutzen, van der Ven, H., O. J. Boelens, W. Khier, Steijl, Rene, Vigevano, Luigi, Dietz, M., B. Zhong, Ekaterinaris, John, Schwarz, Thorsten, D'Alascio, A., Khier, W., Schwarz, T., T. Schwarz, Renaud, T., Drikakis, D., Biava, Massimo, H. Van der Ven, Khier, Walid, Ekaterinaris, J., Barakos, Georg, Costes, M., LeChuiton, Frederic, F. LeChuiton, Biava, M., Zhong, Bowen, Sudre, Laurent, Drikakis, Dimitris, A. D'Alascio   +63 more
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