Modeling and Simulation of Nonlinear Dynamics of Helicopter Rotor Flapping Considering Offset, Blade Weight Moment and Frequency of Flapping

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NAVABI M.; GHAFFARI H.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Modares Mechanical Engineering Year:2019 | Volume:19 | Issue:10 Page(s): 2523-2534

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Information Journal Paper

Title

Modeling and Simulation of Nonlinear Dynamics of Helicopter Rotor Flapping Considering Offset, Blade Weight Moment and Frequency of Flapping

Author(s)

NAVABI M. | GHAFFARI H. | Issue Writer Certificate

Keywords

HelicopterQ1

Flapping DynamicsQ1

SimulationQ2

OffsetQ1

Blade Weight MomentQ1

Abstract

The Helicopter rotor blade flapping results in a Helicopter rotor symmetry lift and has a significant impact on stability and control. In this paper, the modeling of Helicopter flapping in the presence of aerodynamic forces and moments and the effect of Offset, blade torque, hinge resistant spring, blade geometry, natural frequency effect, and forward ratio to achieve reliable relief from flapping was investigated. In the Simulation, the effects of small and large flapping angles and the role of Offset on the momentum entered on the blade, as well as the role of the forward ratio in moments were investigated. Different models of Flapping Dynamics and equations for the flight of a hover and cruise Helicopter are fully presented and all of the important issues are examined for a numerical example. Also, the effect of non-uniform flow in the flapping equations of the blade is the effect of the natural frequency of the flapping motion with the blade Offset. This leads to increasing the accuracy in modeling the phenomenon of flapping on a Helicopter. Simulation results show the importance and impact of Offsets, moments and forces imposed on the blade in the motion of the flapping, which leads to an increase of accuracy in modeling.

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APA: Copy

NAVABI, M., & GHAFFARI, H.. (2019). Modeling and Simulation of Nonlinear Dynamics of Helicopter Rotor Flapping Considering Offset, Blade Weight Moment and Frequency of Flapping. MODARES MECHANICAL ENGINEERING, 19(10 ), 2523-2534. SID. https://sid.ir/paper/179874/en

Vancouver: Copy

NAVABI M., GHAFFARI H.. Modeling and Simulation of Nonlinear Dynamics of Helicopter Rotor Flapping Considering Offset, Blade Weight Moment and Frequency of Flapping. MODARES MECHANICAL ENGINEERING[Internet]. 2019;19(10 ):2523-2534. Available from: https://sid.ir/paper/179874/en

IEEE: Copy

M. NAVABI, and H. GHAFFARI, “Modeling and Simulation of Nonlinear Dynamics of Helicopter Rotor Flapping Considering Offset, Blade Weight Moment and Frequency of Flapping,” MODARES MECHANICAL ENGINEERING, vol. 19, no. 10 , pp. 2523–2534, 2019, [Online]. Available: https://sid.ir/paper/179874/en

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