高速移動体の縦安定性に及ぼす非線形空気力の影響

概要

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The objective of this study is to describe effects of nonlinear aerodynamics on the stability of the longitudinal motion of a high-speed surface transport. This paper focuses on the aerodynamic nonlinearity due to ground effects or wall effects that are often observed for high-speed vehicles. First of all, 1 DOF (degree-of-freedom) calculations based on the inherent nonlinearity of the aerodynamic characteristics near the ground are presented. Then, 2 DOF analyses taking into account the interactive nonlinear effects of the aerodynamics are discussed. The trajectories are examined on the phase plane and the center manifold theory is applied to the analyses. It is shown that the stability of motion depends not on the nonlinearity of 1 DOF but on that of 2 DOF.
一般社団法人日本機械学会の論文
1996-09-25