Abstract
AbstractAs a new aircraft concept composed of independent aircrafts, multi-body aircraft (MBA) is connected together by hinge in wing tip to wing tip configuration. The dynamic characteristics of this kind of aircrafts are different from traditional aircrafts. If the independent aircraft is stable, MBA will be unstable in this configuration. In this paper, a dynamic modeling method of MBA was proposed. The state-space vortex lattice method (VLM) was used for the calculation of aerodynamics coefficients. Newton–Euler equation was used to obtain the flight dynamic model with absolute coordinates. In addition, trim and stability analysis were presented based on the dynamic model and the particular characteristics of this aircrafts were illustrated.KeywordsMulti-bodyAerodynamicsVortex lattice methodDynamicsStability
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