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Journal of Projectiles, Rockets, Missiles and Guidance >

2024 , Vol. 44 >Issue 2: 13 - 20

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2024.02.003

Study on Separation Dynamics of Adapter Offshore Dynamic Platform Based on Davenport Wind Speed Spectrum

  • TANG Jingnan ,
  • JIANG Yi ,
  • ZHAO Yuanyang ,
  • SU Zhengyu
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  • School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China

Received date: 2023-11-03

  Online published: 2024-12-28

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Abstract

As an emerging form of launch, sea launch has greater carrying capacity than traditional launch methods, and has huge advantages in the flexibility of launch location and the safety of the launch drop point. In order to study the safety of the launching process of the sea dynamic platform, a multi-body dynamic model of the sea vertical launching system is established. Based on the wave excitation and random wind load effects, the adapter aerodynamic load changes and spill trajectories under six-degree-of-freedom wave oscillations and crosswinds are obtained by real-time updating of the adapter attitude and aerodynamic loads. The results show that the adapter rotates under aerodynamic loads due to the initial separation velocity, and the wind loads make the adapter collide with the rocket during the initial separation phase. The maximum spilling distance of the adapter is 26.645 m, and the distribution of the adapter drop point is far away from the launcher, but there is a risk of falling to the plane of the moving platform.

Key words： wind spectrum; adapter separation; sea launch; multibody dynamics

Cite this article

TANG Jingnan , JIANG Yi , ZHAO Yuanyang , SU Zhengyu . Study on Separation Dynamics of Adapter Offshore Dynamic Platform Based on Davenport Wind Speed Spectrum[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2024 , 44(2) : 13 -20 . DOI: 10.15892/j.cnki.djzdxb.2024.02.003

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