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<p>The risks caused by impact forces during space docking missions should be reduced as much as possible. A rigid-flexible coupled collision multibody dynamics virtual prototype is established for the cone-probe space docking mechanism, and collision dynamics characterization is carried out. First, the effects of fixed position, thickness, speed, cone angle, and position error on the impact force, stress, and deformation are discussed. Then, a parametric model of the cone is established, and the optimization and design method of a cone configuration is proposed with the minimum impact force as the optimization objective. Finally, the particle swarm algorithm and kriging model were used for optimization, and a new cone configuration was obtained. Results show that the impact force can be improved in the 75 % range. This research provides a method and idea to reduce the impact force by optimizing the configuration, and the research results can effectively guide the subsequent control.</p>

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Collision dynamics analysis and structural optimization of a cone-probe docking mechanism in space

  • 期刊论文

  • 发表日期：

    2025年9月2日

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  • Dongliang Chen,
  • Ying Qu,
  • Yuxi Zhao

摘要

The risks caused by impact forces during space docking missions should be reduced as much as possible. A rigid-flexible coupled collision multibody dynamics virtual prototype is established for the cone-probe space docking mechanism, and collision dynamics characterization is carried out. First, the effects of fixed position, thickness, speed, cone angle, and position error on the impact force, stress, and deformation are discussed. Then, a parametric model of the cone is established, and the optimization and design method of a cone configuration is proposed with the minimum impact force as the optimization objective. Finally, the particle swarm algorithm and kriging model were used for optimization, and a new cone configuration was obtained. Results show that the impact force can be improved in the 75 % range. This research provides a method and idea to reduce the impact force by optimizing the configuration, and the research results can effectively guide the subsequent control.