Stability Analysis of UH-60 Helicopter with External Store

Helicopter Blade Stability Analysis Using Aeroelastic Frequency Response Functions

In the present paper, the aeroelastic stability of helicopter rotor blade is determined using Aeroelastic Frequency Response Function. The conventional methods of aeroelastic stability usually use an iterative procedure while the present method does not require such approach. Aeroelastic Frequency Response Functions are obtained by inverting dynamic stiffness matrix of the aeroelastic system. S...

Acoustics of Uh-60 Black Hawk with Growth Rotor Blades

Acoustic data were acquired during a flight test in 1995 of a UH-60L Black Hawk equipped with Growth Rotor Blades (GRB) performing terminal area operations. Limited acoustic data from the same aircraft equipped with Standard Rotor Blades (SRB) were also acquired. These data were analyzed and compared with data from a 1993 flight test of a UH-60A aircraft to assess differences in acoustics chara...

The Effects of Modafinil on Aviator Performance During 40 Hours of Continuous Wakefulness: A UH-60 Helicopter Simulator Study

helicopter blade stability analysis using aeroelastic frequency response functions

in the present paper, the aeroelastic stability of helicopter rotor blade is determined using aeroelastic frequency response function. the aeroelastic model of blade is obtained by combining dowell - hodges beam model with loewy unsteady aerodynamic theory which considers an unsteady wake beneath the rotor. equations are formed and aeroelastic frequency response functions are obtained by invert...

CFD Analysis of a Slatted UH - 60 Rotor in Hover by Yashwanth Ram Ganti

Title of Thesis: CFD Analysis of a Slatted UH-60 Rotor in Hover Degree Candidate: Yashwanth Ram Ganti Degree and Year: Master of Science, 2012 Thesis directed by: Associate Professor James D. Baeder Department of Aerospace Engineering The effect of leading-edge slats (LE) on the performance of a UH-60A rotor in hover was studied using the OverTURNS CFD solver. The objective of the study was to ...