Research on the Cables’ Erecting Dynamics of a Rocket on the Dynamic Platform

ZHAO Yuanyang; JIANG Yi; SHAO Jianshuai; WANG Deng; WANG Jinghui

doi:10.15892/j.cnki.djzdxb.2023.04.013

Journal of Projectiles, Rockets, Missiles and Guidance >

2023 , Vol. 43 >Issue 4: 85 - 91

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2023.04.013

Research on the Cables’ Erecting Dynamics of a Rocket on the Dynamic Platform

ZHAO Yuanyang ¹ ,
JIANG Yi ¹ ,
SHAO Jianshuai ² ,
WANG Deng ¹ ,
WANG Jinghui ¹

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¹ School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China
² Beijing Institute of Space Launch Technology, Beijing 100076, China

Received date: 2022-04-24

Online published: 2025-02-07

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Abstract

Launching a rocket on the dynamic platform will be effected by the sea conditions, then using cables and winch to erect rockets is proposed. Based on Multibody dynamic method and seakeeping of ships theory, the erecting system is built. In this research, two symmetrical cables are adopted in this erecting system, and complicated sea conditions are considered in the whole process. Then different dynamic responses under various sea conditions are used to study cables’ force analysis. After that, the erecting method of hydraulic ram will be used to compare to cables’ erecting method. The results indicate that using cables to erect a rocket will be influenced by various sea conditions, and the value will be increased when sea conditions becomes complex. The maximum stress of the cables is 460 MPa which is enough for the cables’ materials. Compared with hydraulic ram, cables’ erecting is more stable when erecting a rocket, and it is more efficient because it just needs 39.4% erecting force in comparison to hydraulic ram. This research can provide more choices when erecting a rocket and it is valuable for engineering applications.

Key words： dynamic platform; cables’ erecting; multibody dynamics; sea conditions

Cite this article

ZHAO Yuanyang , JIANG Yi , SHAO Jianshuai , WANG Deng , WANG Jinghui . Research on the Cables’ Erecting Dynamics of a Rocket on the Dynamic Platform[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2023 , 43(4) : 85 -91 . DOI: 10.15892/j.cnki.djzdxb.2023.04.013

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