Ahmed Abdelmonem Ahmed Hussein <br/><br/>
Static and dynamic stability of hingeless helicopter blade in hover /  
 الاستقرار السكونى و الحركى لريشة طائرة هيليكوبتر لامفصلية أثناء التحويم 
Ahmed Abdelmonem Ahmed Hussein ; Supervised Gamal Mohammed Elbayoumi , Samir Mostafa Elkholy 
 - Cairo :   Ahmed Abdelmonem Ahmed Hussein ,   2015 
 - 117 P. :   charts ;   30cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Aerospace Engineering 
<br/><br/> The main objective of the thesis is to investigate the nonlinear geometric effects on the static and dynamic stability of helicopter hingeless rotor in hover. this nonlinearity mainly arises frrm the contribution of the flap and lead-lag bending to the elastic twist. the unsteady aerodynamic model was adapted to include the effect of both the pulsating free stream ans the returning spiral wake. differernt deficiency functions were used; quasi steady C(k) = 1, theodorsen C(k) and lowey C' (k,m.h) both divergence and flutter phenomena were studied 
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<br/><br/><label>Subjects--Index Terms: </label>Helicopter hovering Hingeless Rotor Blad Nonlinear trim Equations