孙崇飞,罗自荣,朱一鸣,卢钟岳,吴国恒,尚建忠.波浪能点吸收器结构设计与数值优化[J].农业机械学报,2018,49(9):406-413.
SUN Chongfei,LUO Zirong,ZHU Yiming,LU Zhongyue,WU Guoheng,SHANG Jianzhong.Structural Design and Numerical Optimization of Novel Wave Energy Point Absorber[J].Transactions of the Chinese Society for Agricultural Machinery,2018,49(9):406-413.
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波浪能点吸收器结构设计与数值优化   [下载全文]
Structural Design and Numerical Optimization of Novel Wave Energy Point Absorber   [Download Pdf][in English]
投稿时间:2018-07-11  
DOI:10.6041/j.issn.1000-1298.2018.09.048
中文关键词:  波浪能  点吸收器  性能特性  优化设计
基金项目:国家自然科学基金项目(51475465)和湖南省研究生科研创新项目(CX2015B014)
作者单位
孙崇飞 国防科技大学 
罗自荣 国防科技大学 
朱一鸣 曼彻斯特大学 
卢钟岳 国防科技大学 
吴国恒 国防科技大学 
尚建忠 国防科技大学 
中文摘要:无人海洋探测器作为开发海洋资源的重要装备,普遍缺乏高效可靠的供电方式。波浪能作为一种分布广泛的可再生海洋能,有望成为探测器的理想供电能源。波浪能的高能量密度特性有利于装置小型化,使其便于作为供电模块集成到无人海洋探测器。提出了一种基于反转自适应机理的新型波浪能点吸收器。该点吸收器可以实现叶片对水流的自适应偏转,并自动平衡装置的整体转矩。通过数值分析发现,点吸收器的功率和效率特性受吸收器叶片倾角、相对流速、转速及双层吸收器相互作用的影响很大,合理选择系统参数有助于优化装置的整体性能。试验桶及造波池试验分别验证了数值分析的准确性和工作原理的可行性。
SUN Chongfei  LUO Zirong  ZHU Yiming  LU Zhongyue  WU Guoheng  SHANG Jianzhong
National University of Defense Technology,National University of Defense Technology,University of Manchester,National University of Defense Technology,National University of Defense Technology and National University of Defense Technology
Key Words:wave energy  point absorber  performance characteristics  optimization design
Abstract:Unmanned ocean detector, as an important tool for the development of marine resources, generally lacks efficient and reliable power supply. Wave energy is the most widely distributed renewable ocean energy, and it is expected to be the ideal energy source for the detectors. A novel wave energy point absorber was presented based on the counter rotating self adaptable mechanism. The new point absorber can achieve the self adaptable deflection of the blades to the water flow and automatically balance the overall torque of the absorber. A comprehensive numerical analysis and experimental verification of the new point absorber were conducted, and the influence rules of structure and system parameters on the power and efficiency characteristics were obtained. Through numerical analysis, it was found that the power and efficiency characteristics of the point absorber were greatly affected by the inclination angle of the blade, the relative flow velocity, the rotational speed and the interaction between the upper and lower absorbers. The high value range of power of the absorber was in the high relative velocity range, and the corresponding optimal blade inclination angle was 30°~45°; the high value range of efficiency was in the low relative velocity range, and the corresponding optimal blade inclination angle was 20°~35°. A rotational speed of 50~90r/min was suitable for most typical sea conditions. Large blade inclination angle can weaken the interaction between the upper and lower absorbers, and small blade inclination angle can improve the performance of the single layer absorber. Selecting suitable structure and system parameters can help further optimize the performance characteristics of the novel point absorber. In addition, validation experiments in test pool and wave tank were conducted respectively to verify the accuracy of numerical analysis and the feasibility of the novel point absorber.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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