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单双向流下浪流轮机空心翼径向屈曲失效分析
Radial buckling failure analysis of hollow blades of single bidirectional flow wave turbine
投稿时间:2019-10-08  修订日期:2019-12-08
DOI:
中文关键词:  浪流轮机  数值模拟  稳定性  屈曲失效  水动力攻角
英文关键词:Wave turbine  numerical simulation  stability  buckling failure  hydrodynamic angle of attack
基金项目:国家自然科学基金(41976194)"海洋波浪和潮流能集成发电机理研究";上海科委国内科技合作项目(19595801100)"新疆油田注水管网余压发电技术研究与示范应用"。
作者单位E-mail
王世明 上海海洋大学 smwang@shou.edu.cn 
葛玲 长崎大学上海海洋大学 lingge0524@163.com 
曹宇 上海海洋大学  
贾巧娇 上海海洋大学  
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中文摘要:
      以垂直卧式浪流轮机的空心翼(WTHB)为主要研究对象,采用动量理论、屈曲失效理论及三维数值模拟相结合的方法,考虑了WTHB在非单一浪流过程中产生的径向压缩应力,分析了浪流单、双向作用力、水动力攻角、轮翼双支持点分布对空心翼屈曲失效的影响。结果表明,双向浪流作用下空心翼稳定性明显优于传统单向浪流作用下空心翼;最优获能水动力攻角40°相较于20°的相对径向屈曲变形量最值较大;空心翼双支持点分布对整体极限型屈曲有较大影响。
英文摘要:
      The main research object is hollow wing of vertical horizontal wave turbine(WTHB). A combination of momentum theory, buckling failure theory and three-dimensional numerical simulation is adopted to investigate the radial compressive stress generated by WTHB during non-single wave processes. In addition, various factors affect the buckling failure of the hollow wing, such as unidirectional wave force, two-way wave force, hydrodynamic angle of attack, and double support point distribution of the wings. The results show that the instability of the hollow blades is obviously better than that of the traditional one-way wave; the angle of attack 40°is optimal value of the obtained hydrodynamic angle of attack, but comparing with angle of attack 20°, the larger relative value of the relative radial buckling is angle of attack 40°. The double-support point of the hollow blades has a greater influence on the overall ultimate buckling mode.
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