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| The Balancing Rotating Speed Analyses and Trajectory Design of Rolling Tail Rocker Projectile |
| Received:February 03, 2021 Revised:February 15, 2021 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2021.03.012 |
| KeyWord:rotating tail rocket projectile flight dynamics model balancing rotating speed trajectory design |
| Author | Institution |
| LI Bo |
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China |
| ZHANG Xu |
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China |
| CHEN Qiang-hong |
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China |
| ZHAO Ping |
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China |
| DONG Yan |
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China |
| ZENG Fei |
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China |
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| Abstract: |
| In order to analyze the effect of rotating tail roll speed on the rockets balance, trajectory design is launched based on the rocket projectile. In this paper, rotating tail rocket as an example, the rotating tail, the projectile and the rolling bearing force are analysed, rotating tail the rockets play body and tail roll channel dynamics model are established, and the influence of rotating tail, with asymmetry, and different coefficients of friction, on the rockets play body balance between the rolling speeds. And rocket projectile with inclined rail launch rotary tail as an example, trajectory design and scale aeromodelling are launched. Larger rolling as simulation. The simulation results show that the rotational tail design can reduce the balanced roll of the fixed tail body from 4.64 rad/s to 4.16 rad/s. With the increase of the equivalent rudder deviation, the balanced roll speed of the projectile body will not increase continuously, but will be stable at about 4.4 rad/s. The friction coefficient of the rotating tail fin bearing has a great influence on the restraining effect of the rotating tail fin on the balanced rolling speed of the projectile body. The balance roll speed of the projectile body is 4.01 rad/s, which meets the requirement of the experimental load for the speed after trajectory design and simulation. The rotating tail can effectively restrain the balanced rolling speed of the projectile body, and the standard trajectory design meets the requirements of flight test. |
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