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码头LNG卸料臂紧急脱离作业动态响应分析
Dynamic response analysis of emergency release operation of LNG unloading arm system at terminals
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- DOI:
- 10.3969/j.issn.1001-2206.2025.06.001
- 作者:
- 王世超, 周志鹏, 田继伟, 常宗瑜, 王海波
WANG Shichao, ZHOU Zhipeng, TIAN Jiwei, CHANG Zongyu, WANG Haibo
- 作者单位:
- 1. 中石化青岛液化天然气有限责任公司, 山东青岛 266100;2. 中国海洋大学工程学院, 山东青岛 266100;3. 山东省海洋工程重点实验室, 山东青岛 266100
1. SINOPEC Qingdao Liquefied Natural Gas Co., Ltd., Qingdao 266100, China;2. College of Engineering, Ocean University of China, Qingdao 266100, China;3. Key Laboratory of Ocean Engineering of Shandong Province, Qingdao 266100, China
- 关键词:
- LNG卸料臂; 紧急脱离装置; 动态响应; 多体动力学
LNG unloading arm;emergency release system;dynamic response;multibody dynamics
- 摘要:
-
码头LNG卸料臂紧急脱离装置是保证其作业安全的核心部件。在紧急脱离作业过程中，因受到突然的冲击，可能对卸料臂结构造成潜在损伤。通过多体动力学方法，基于ADAMS仿真软件，研究了LNG卸料臂在紧急脱离作业中的动态响应。首先，基于拉格朗日法建立了LNG卸料臂紧急脱离系统的动力学模型，分析了卸料臂在紧急脱离过程中末端部件的运动轨迹和卸料臂的扫掠区域；然后，进一步探讨影响卸料臂稳定性和运动范围的关键因素。仿真结果表明，虽然紧急脱离作业会给卸料臂带来剧烈冲击，柔性振/晃动有可能与其他设施设备产生干涉，但系统能够在数秒内由振荡状态过渡至平稳状态，具有良好的动态稳定性。应制订相应的安全处置规程，保证人员和设备的安全。
The emergency release device of LNG unloading arm at terminals is a critical component to ensure operational safety. During emergency release operations, the unloading arm may experience potential structural damage caused by sudden impacts. In this study, the dynamic response of the LNG unloading arm during emergency release operation was investigated using multibody dynamics methods based on ADAMS simulation software. By the Lagrangian method, a dynamical model of the emergency release system was established. The end trajectory and sweep area of the unloading arm during the emergency release process were analyzed. Key factors affecting the stability and motion range of the unloading arm were further explored. Simulation results show that while the arm undergoes impacts during emergency release and soft vibration/sloshing may induce interference with other devices, it can transition from an oscillatory state to a stable state within a few seconds, demonstrating good dynamic stability. The corresponding treatment procedures should be planned to ensure the personal and device safety.