当前位置：首页 > 过刊浏览->2025年第51卷S期
自升式平台动力响应控制参数影响分析
Influence analysis of dynamic response control parameters on jack-up platforms
浏览(269) 下载(0)
- DOI:
- 10.3969/j.issn.1001-2206.2025.S.004
- 作者:
- 柏健, 诸俊楷, 蒙占彬
BAI Jian, ZHU Junkai, MENG Zhanbin
- 作者单位:
- 1. 中石化胜利石油工程公司钻井工艺研究院, 山东东营 257000;2. 上海惠生海洋工程有限公司, 上海 201210;3. 北部湾大学机械与船舶海洋工程学院, 广西钦州 535011
1. Drilling Technology Research Institute, Shengli Petroleum Engineering Company, Sinopec, Dongying 257000, China;2. Shanghai Wison offshore&Marine Co., Ltd., Shanghai 201210, China;3. College of Mechanical and Marine Engineering, Beibu Gulf University, Qinzhou 535011, China
- 关键词:
- 自升式平台; 自振周期; 动力响应; 波浪力
jack-up platform;natural vibration period;dynamic response;wave force
- 摘要:
围绕自升式平台的动力响应展开研究，重点分析了波流力及附连水等影响因素，并针对自升式平台简化模型的波浪周期与固有周期进行了数值模拟对比，最终提出了避免动力响应惯性力过大、保障平台海上安全的具体措施建议。研究以中海油某平台作为计算示例，通过ANSYS结构计算程序建立简化模型，对影响动力响应惯性力大小的关键因素（波幅、相位角的关系）进行了详细说明，尤其针对最大相位角的搜索方式提供了命令流实现方法，并在结果文件中对波幅的提取原理给出了示例。同时，结合平台水下部分计算分析了附连水的影响，明确了影响附连水附加密度的重要参数。为了探索自振周期的变化规律，利用简化模型对不同弹性模量取值下的结果进行分析，计算比较了考虑附连水附加密度和减小无支撑长度后的平台自振周期，明确了这些参数的变化对自振周期的影响方向。最后，基于研究结果，提出了平台设计中减小动力响应载荷的关键点。
The dynamic response of jack-up platforms was studied, with an emphasis on analyzing influencing factors such as wave current force and water resistance. A numerical simulation comparison was also conducted between the wave period and the natural period of the simplified model of jack-up platforms. Ultimately, specific measures and suggestions were proposed to avoid excessive inertial force in the dynamic response and ensure the safety of the platform at sea. With a certain platform of CNOOC as a calculation example, a simplified model was built through the ANSYS structural calculation program. The key factors affecting the magnitude of the inertial force of the dynamic response (the relationship between amplitude and phase Angle) were explained in detail. Especially, the command stream implementation method was provided for the search method of the maximum phase angle. The extraction principle of amplitude was demonstrated in the result file. Meanwhile, the influence of water resistance was calculated and analyzed in combination with the underwater part of the platform. The important parameters affecting the additional density of water resistance were clarified. To explore the variation law of the natural vibration period, a simplified model was used to analyze the results under different elastic modulus values. The natural vibration periods of the platform after considering the additional density of water resistance and reducing the length without support were calculated and compared. The influence direction of the changes in these parameters on the natural vibration period was clarified. Finally, based on the research results, key points for reducing the dynamic response load in the platform design were proposed.