A New Method for Modeling of Fully Flexible Aircrafts


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The purpose of this study is to produce a modeling capability for integrated flight dynamics of flexible aircraft that can better predict some of the complex behaviors in flight due to multi-physics coupling. Based on the studying of the exiting modeling approaches, the author put forward a new modeling method, and developed a new formulation integrating nonlinear rigid-body flight mechanics and linear aeroelastic dynamics for fully elastic aircrafts using Lagrangian mechanics. The new equations of motion overcome the disadvantages of the exiting methods, and include automatically all six rigid-body degrees of freedom and elastic information, the seamless integration is achieved by using the same reference frame and the same variables to describe the aircraft motions and the forces acting on it, including the aerodynamic forces. The formulation is modular in nature, in the sense that the structural model, the aerodynamic theory, and the controls method can be replaced by any other ones to better suit different types of aircraft.



Advanced Materials Research (Volumes 383-390)

Edited by:

Wu Fan






D. Guo et al., "A New Method for Modeling of Fully Flexible Aircrafts", Advanced Materials Research, Vols. 383-390, pp. 2350-2355, 2012

Online since:

November 2011




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