<p>The nature of the motion of small cosmic bodies (meteoroids) during flight in the Earth's atmosphere, where they perform oscillatory movements around the center of mass due to their asymmetric flow, is considered. To estimate the flight parameters of an ellipsoid-shaped meteoroid, its aerodynamic characteristics (coefficient of aerodynamic drag, lift coefficient, pitching moment, and damping pitching moment) as functions of the angle of attack were calculated using numerical methods. Taking these characteristics into account, a numerical simulation of the meteoroid’s motion in the atmosphere was carried out, and the influence of its aerodynamic properties and parameters of entry into the atmosphere on the amplitude of meteoroid oscillations was assessed.</p>

错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

On Mathematical Simulation of the Oscillatory Motion of Meteoroids in the Earth’s Atmosphere

  • V. A. Andrushchenko,
  • F. A. Maksimov,
  • N. G. Syzranova

摘要

The nature of the motion of small cosmic bodies (meteoroids) during flight in the Earth's atmosphere, where they perform oscillatory movements around the center of mass due to their asymmetric flow, is considered. To estimate the flight parameters of an ellipsoid-shaped meteoroid, its aerodynamic characteristics (coefficient of aerodynamic drag, lift coefficient, pitching moment, and damping pitching moment) as functions of the angle of attack were calculated using numerical methods. Taking these characteristics into account, a numerical simulation of the meteoroid’s motion in the atmosphere was carried out, and the influence of its aerodynamic properties and parameters of entry into the atmosphere on the amplitude of meteoroid oscillations was assessed.