摘要
本文以一种新型波浪能发电平台为研究对象,分别采用基于三维势流理论的软件Sesam和基于有限体积法的Flow3D软件,对平台和发电浮子进行水动力分析。应用Sesam-HydroD模块计算了平台和发电浮子在频域内的运动响应,将平台和发电浮子的垂荡运动响应进行对比分析,结果表明,在正常海况下,平台与发电浮子垂荡运动相对幅值满足捕能系统的发电需求。应用Flow3D软件对平台整体进行水动力分析,结果表明,平台与发电浮子相对运动振幅在0.3～0.4m间,可满足发电需求。在此基础之上,应用Orcaflex软件,通过时域耦合动力分析的方法,计算了平台在自存工况和作业工况下的运动响应和系泊缆动张力响应,结果表明:在自存工况下,平台锚泊线的安全系数符合规范要求,平台具有良好的安全性能,能够适应恶劣的海洋环境;在作业工况下,平台的垂荡运动响应对波浪方向变化并不敏感,捕能系统不受波浪方向变化的影响,满足发电需求。另外,本文的研究结果能为类似的海洋平台的研究提供建议和参考。
In this paper,a new type of wave energy generation platform is taken as the research object.The software Sesam based on three-dimensional potential theory and software Flow3D based on finite volume method are used for hydrodynamic analysis of platform and power generation float.The motion response of the platform and the generator float in the frequency domain is calculated using the Sesam-HydroD module.Comparing the heave motion response of the platform and the power generating float,the results show that under normal sea conditions,the relative amplitude of the platform and the generating float heave motion meets the power generation demand of the energy capturing system.The software Flow3D was used to analyze the hydrodynamics of the platform as a whole.The results show that the relative motion amplitude of the platform and the power generating float is between 0.3~0.4 m,which can meet the power generation demand.On this basis,software Orcaflex is used to calculate the motion response and mooring line dynamic tension response of the platform under survival conditions and working conditions by means of time domain coupled dynamic analysis.On this basis,software Orcaflex is used to calculate the motion response and mooring line dynamic tension response of the platform under survival conditions and working conditions by means of time-domain coupling dynamic analysis.The results show that under the self-storage condition,the safety factor of the platform mooring line meets the requirements of the specification,and the platform has good safety performance and can adapt to the harsh marine environment.Under the working conditions,the heave motion response of the platform is not sensitive to the change of the wave direction,and the energy capture system is not affected by the change of the wave direction to meet the power generation demand.In addition,the results of this paper can provide suggestions and reference for similar offshore platform research.
作者
冯亮
李昕
史宏达
韩治
董晓晨
何京可
FENG Liang;LI Xin;SHI Hong-Da;HAN Zhi;DONG Xiao-Chen;HE Jing-Ke(College of Engineering,Ocean University of China,Qingdao 266100,China)
出处
《中国海洋大学学报（自然科学版）》
CAS
CSCD
北大核心
2019年第3期171-178,共8页
Periodical of Ocean University of China
基金
国家海洋局海洋可再生能源资金项目(GHME2016YY02)
山东省自然科学基金项目(ZR2017BEE024)
山东省自然科学基金重大基础研究项目(ZR2017ZA0202)资助
国家自然科学联合基金重点项目(U1706223)
山东省重大科技专项资助项目(2017CXGC0106)~~
关键词
波浪能发电平台
系泊系统
SESAM
水动力分析
耦合动力响应
wave energy generation platform
mooring system
SESAM
hydrodynamic analysis
coupled dynamic responses
