Open Access
A method for determining the characteristic functions associated with the aeroelastic instabilities of helicopter rotors in forward flight
V. J. Piarulli,R. P. White +1 more
TLDR
In this paper, a computer program for determining characteristic functions of aeroelastic instabilities of helicopter rotor in forward flight is presented, which can be used to determine the flight characteristics of a helicopter rotor.Abstract:
Computer program for determining characteristic functions of aeroelastic instabilities of helicopter rotor in forward flightread more
Citations
More filters
Journal ArticleDOI
Application of the Floquet Transition Matrix to Problems of Lifting Rotor Stability
Journal ArticleDOI
Interpretation of Floquet Eigenvalues and Eigenvectors for Periodic Systems
Rotorcraft flight control design with alleviation of unsteady rotor loads
TL;DR: This talk discusses the development of rotorcraft flight control laws alternative to HHC that minimize rotor loads by acting solely through the primary flight controls (zeroth and first harmonic swashplate control) and could be readily integrated with existing or future Automatic Flight Control Systems (AFCS) on civil and military rotorcraft.
Sensitivity analysis of torsional vibration characteristics of helicopter rotor blades. Part 2: Aerodynamics and sensitivity analysis
T. Bratanow,A. Ecer +1 more
TL;DR: In this paper, a theoretical analysis of rotor blades was carried out with special emphasis on torsional degrees of freedom (DOF) and the sensitivity of overall blade vibration characteristics to torsion oscillations.
References
More filters
Experimental and theoretical investigation of the flutter characteristics of a model helicopter rotor blade in forward flight
TL;DR: In this article, an experimental and analytical investigation was made of the effects of advance ratio on the flutter characteristics of a model helicopter rotor blade, based on linearized equations of motion for the flapping, pitching, bending and twisting degrees of freedom.