Results 301 to 310 of about 3,387,018 (354)

Dynamic Loading on Turbofan Blades due to Bird-Strike

Volume 6: Structures and Dynamics, Parts A and B, 2011
In the present paper, a hydrodynamic bird material model made up of water and air mixture is developed, which produces good correlation with the measured strain-gage test data in a panel test. This parametric bird projectile model is used to generate the time-history of the transient dynamic loads on the turbofan engine blades for different size birds ...
Sunil K. Sinha, Kevin E. Turner, Nitesh Jain   +2 more
openaire   +1 more source

Unsteady Air Loads on Helicopter Rotor Blades

The Journal of the Royal Aeronautical Society, 1964
An appropriate introduction to the topic of this lecture is the following comment taken from Cierva's third and last lecture presented before this Society in 1935:“Perhaps the most irritating of the secondary difficulties met with in the Autogiro development have been those of a dynamical nature.
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Prediction of UH-60A Blade Loads: Insight on Load Confluence Algorithm

AIAA Journal, 2014
Accurate predictions of the aeroelastic response of a rotorcraft are essential to minimize weight and estimate the fatigue life of rotary-wing aircraft components. Aeroelastic analyses are characterized by strong couplings between the aerodynamic loads and the structural response and are very time-consuming, in particular when computational-fluid ...
M. Chierichetti, C. McColl, M. Ruzzene
openaire   +1 more source

Effect of different endplates on blade aerodynamic performance and blade loading of VAWT with symmetric airfoil blades

2017 International Conference on Green Energy and Applications (ICGEA), 2017
The aerodynamic performances of a symmetric airfoil bladed Vertical Axis wind turbine (VAWT) with different end plate configurations are studied using computational methods. The aerodynamic performance of VAWT can be improved using endplates. The secondary flow vortices can be suppressed by this endplates which improves torque characteristics.
K. Rajaguru Nathan, S. Thanigaiarasu
openaire   +1 more source

Buckling load prediction tools for rotor blades [PDF]

, 2005
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Lindenburg, C., Winkel, G.D. d.
openaire  

Flow and Blade Loading in Centrifugal Impellers

1986
PHOENICS-81. with body fitted coordinates, has been applied to the simulation of the three-dimensional viscous flow in a centrifugal impeller blade passage. The rotation of the coordinate system is represented by introducing momentum sources corresponding to the centrifugal and Coriolis accelerations.
J. P. Edwards, D. R. Glynn, D. G. Tatchell   +2 more
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Propeller Blade Loading in Non-Uniform Flow

SNAME Propellers '75 Symposium, 1975
The results are presented of model measurements of the unsteady forces on one blade of a Propeller behind a single screw merchant ship· During the tests the propeller loading, the number of blades and the drift angle were varied as parameters. Moreover the installation required for the measurements and the method are described.
openaire   +1 more source

Periodic rotor blade aerodynamics including loading effects

1st National Fluid Dynamics Conference, 1988
Steven R. Manwaring, Sanford Fleeter
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Assessing Calculated Blade Loads of the Tilt Rotor Aeroacoustic Model

, 2018
J. Ho, H. Yeo
semanticscholar   +1 more source

Viral loads of Delta-variant SARS-CoV-2 breakthrough infections after vaccination and booster with BNT162b2

Nature Medicine, 2021
Matan Levine-Tiefenbrun, Idan Yelin, Hillel Alapi   +2 more
exaly