| Citation: | YAN Qimin, HU Junhua, CHEN Guoming, et al. Dynamic modeling and simulation of morphing vehicle[J]. Journal of Beijing University of Aeronautics and Astronautics, 2021, 47(12): 2602-2610. doi: 10.13700/j.bh.1001-5965.2020.0496(in Chinese)
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In view of the problem that the dynamic model of some morphing vehicles is complex, which is caused by the complicated variant description and the rigid-flexible coupling, a general applicable dynamic equation of morphing vehicle is derived. The vehicle is regarded as a whole composed of mass points, and the dynamic differential equation of each mass point is established. The extended dynamic equation suitable for the morphing vehicle is derived by integral method, and the influence of the variants is described as additional forces and additional moments. The longitudinal open-loop motion simulation of a conformal semi-ring wing morphing vehicle with flexible wings is carried out. Aimed at the problem that some additional forces and additional moments are difficult to accurately calculate, a rapid calculation method for engineering is proposed. The dynamic response of the vehicle and the influence of additional forces and additional moments under different variant rates are analyzed. The results show that the additional forces and additional moments are positively correlated with the variant rate.
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