Vepa, R and Balasubramanian, TS (1980) Numerical treatment of helicopter rotor stability problems. In: Proceedings of the Aerospace Conference of Emerging technologies in Aerospace Structures, Design, Structural Dynamics and Materials, 13-15 Aug 1980, New York.Full text not available from this repository.
The problem of calculating the Floquet transition matrix for parametric stability problems is considered. A new method of calculating the transition matrix with a minimum number of time steps is described. The method is shown to be extremely efficient for a wide class of helicopter stability problems, including flapping stability of a helicopter rotor, helicopter ground resonance with a nonisotropic rotor and pitch-flap-bending stability of a helicopter rotor in forward flight. The relationship of the method to the classical method of averaging is pointed out.
|Item Type:||Conference or Workshop Item (Paper)|
|Uncontrolled Keywords:||Stability;Mathematical models;Helicopter rotors;Aerospace; Mathematical analysis;Helicopters;Aircraft components; Dynamics;Rotors;Aerodynamic stability;Aircraft stability; Floquet theorem;Helicopter performance;Numerical analysis; Rotary wings;Rotor aerodynamics;Dynamic response;Equations of motion;Ground resonance|
|Subjects:||ENGINEERING > Structural Mechanics|
|Division/Department:||Structures Division, Structures Division|
|Depositing User:||M/S ICAST NAL|
|Date Deposited:||28 Nov 2006|
|Last Modified:||24 May 2010 09:53|
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