Systems Engineering and Electronics ›› 2025, Vol. 47 ›› Issue (8): 2696-2705.doi: 10.12305/j.issn.1001-506X.2025.08.27

• Guidance, Navigation and Control • Previous Articles     Next Articles

Dynamic characteristics and influence factors of in-orbit launch for space micro-load

Zengqiao TAN, Haibo YANG, Wenhe LIAO, Zhengliang LU, Xiaoyu TAO   

  1. School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China
  • Received:2024-09-05 Online:2025-08-31 Published:2025-09-04
  • Contact: Haibo YANG

Abstract:

Aiming at the dynamic characteristics of in-orbit launch of space micro-load based on solid thrusters, a dynamic model of a in-orbit launch system considering the inertia spindle shift and additional disturbance torque is established based on the multi-rigidbody theory. A method of calculating the contact internal force between the load and the satellite platform using the boundary conditions is proposed to solve the dynamic parameters. The accuracy of the dynamic model and solution method is verified through numerical simulations and comparisons with auxiliary software simulation results. Meanwhile, focusing on the motion coupling effect between the payload and the platform, the analysis considers the impact of payload installation position, thrust eccentricity, and friction coefficient on the initial disturbance during launch, using the established dynamic model. Relevant requirements for the design parameters of the payload launch system are proposed, providing theoretical guidance for the engineering practice of in-orbit launching of space micro payloads.

Key words: space micro-load, solid thruster, in-orbit launch, launch dynamics, initial disturbance

CLC Number: 

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