Simulation analysis of protective wall against hydrogen combustion from liquified hydrogen storage tank on the offshore launching platform

Pua, Chenglin; Hu, Pan; Ji, Changcheng; Zhu, Zhiqiang; Zheng, Bohong; Zhai, Shuwei

doi:10.1016/j.ijhydene.2022.12.120

Cited by 8 publications

(1 citation statement)

References 20 publications

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“…Kong et al [26] developed a methodology for quantitative risk assessment on hydrogen leak hazards from offshore rocket launching platforms during their filling process. Pua et al [27] simulated the impact of hydrogen combustion following a hydrogen leak accident on offshore launch platforms and the preventive effect of protective walls, demonstrating that wall design can effectively protect rockets from combustion impacts. Xiong et al [28] studied the influence of initial crack length and initial tilt angle on fatigue crack propagation on the lower surface of rocket deflector channels of offshore rocket launch platforms using the Extended Finite Element Method (XFEM).…”

Section: Introductionmentioning

confidence: 99%

Rolling Mechanism of Launch Vehicle during the Prelaunch Phase in Sea Launch

Wang,

Xiao,

Shao

et al. 2024

Aerospace

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During the sea launch of a launch vehicle in low sea state, a rolling phenomenon of the launch vehicle has been observed. In rough sea conditions, launch may failure. This study utilizes dimensionality reduction-driven spatial system projection methods and virtual prototype modeling technology to reveal that the launch vehicle’s rolling is caused by differences in the motion paths of the center of mass. Additionally, during the prelaunch stage, the variation in the trajectory of the launch vehicle’s center of mass caused by the rolling and pitching motions of the transportation vessel has a significant impact on the roll motion of the launch vehicle. The motion in other degrees of freedom has minimal influence on the launch vehicle’s rolling. The minimum rocket rolling occurs when the dynamic coefficient of friction of the launchpad–launch vehicle contact is 0.05, and the dynamic coefficient of friction of the adapters and guideways is 0.4. The conclusions provide a theoretical foundation for optimizing the sea launch system and enhancing the reliability of sea launch in rough sea conditions.

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Section: Introductionmentioning

confidence: 99%