在波浪力下的八条腿临时支结构的机械分析
Weikuan Wang1,2, Yan-Zhao Yuan1
1MSc Civil Engineering, University of Exeter, Exeter, England.
PloS one
|November 29, 2023
概括
临时海上平台的八条腿支结构有效地转移波浪,增强稳定性. 然而,增加结构直径可能会对主堆的应力环境产生负面影响.
科学领域:
- 海洋工程 海洋工程
- 海洋结构 海洋结构
- 地质技术工程 地质技术工程
背景情况:
- 临时海上平台需要坚固的基础设计,以抵御恶劣的海洋环境.
- 八条腿支结构为离岸应用中基础稳定提供了一种新的方法.
- 了解这些结构在各种条件下的机械行为对于安全和高效的部署至关重要.
研究的目的:
- 为了对临时海上平台的八条腿支结构进行机械分析.
- 在不同的环境和设计参数下调查支结构的稳定性.
- 评估支结构对主和海底基础的影响.
主要方法:
- 使用MIDAS-3D软件进行有限元分析.
- 纳入修改后的 RANS 方程和 Forchheimer 和电阻模型用于流体动力学.
- 堆群理论用于结构应力分析的应用.
- 参数研究不同嵌入深度,堆直径,波周期和振幅.
主要成果:
- 八条腿结构有效地拦截和转移波浪流,在大波浪期间保护主.
- 在恒定波浪条件下,八条腿结构的直径增加,使主的应力环境恶化.
- 数字分析表明,浅层基有显著的变形,尽管八条腿结构通过死亡重量维持支.
结论:
- 八条腿支结构表明,它有能力减轻海浪对海上平台的影响.
- 优化八脚结构的直径至关重要,以避免损害主堆的完整性.
- 主的死亡重量提供了必要的支持,即使基础经历了显著的变形.
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