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Multi-body Dynamics Modeling of Fixed-pitch Co-axial Rotor Unmanned Helicopter

S. Suzuki

Abstract


In this paper, we derive a mathematical model of a fixed-pitch co-axial rotor unmanned helicopter by using a multi-body dynamics modeling technique. First, we consider the helicopter as rigid model which consists of 2 rigid bodies. We apply velocity transformation method to derive equation of motion of the helicopter. We assume that all the forces and moments  impressed into the helicopter are generated by co-axial rotors, and derive them in consideration of rotor aerodynamics. We verify the model by comparing the flight experiment data with model output. Finally, the motion  analysis using the model is conducted to establish the behavior of the helicopter.

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References


Mettler, B.,“System Identification Modeling of a Small Scale Unmanned Rotorcraft for Flight Control Design, ”in Journal of American Helicopter Society, Vol. 47, No. 1, pp. 50-63, 2002.

Lee, J.H., Byoung-Mun Min and Eung-Tai Kim,“Autopilot design of tilt-rotor UAV using particle swarm optimization method, ”in Proceedings of the 2007 International Conference of Control, Automation and Systems, pp.1629-633, Octobar, 2007.

Guerrero-Castellanos, J.F., Hably, A., Marchand, N. and Lesecq, S., “Bounded attitude stabilization: Application on four-rotor helicopter, ”in Proceedings of 2007 IEEE International Conference on Robotics and Automation, pp. 730-735, 2007.

Hiroshi Tajima, “Fundamentals of Multibody Dynamics”, Tokyo Denki University Press, 2006, (in Japanese).

Shabana, A.A., “Dynamics of Multibody Systems”, 3rd Edition, Cambridge, 2005.

Jerkkovsky, W., “The Structure of Multibody Dynamics Equations,” in Journal of Guidance and Control, Vol.1, No.3, pp.173-182, 1978.

Kim, S.S., and Vanderploeg,M.J., “A General and Efficient Method for Dynamics Analysis of Mechanical System Using Velocity Transformations,” in ASME Journal of Mechanisms, Transmissions, and Automation Design, Vol.108, pp.176-182, 1986.




DOI: http://dx.doi.org/10.21535%2FProICIUS.2011.v7.353

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