无叶片风力发电机及其风振特性研究  

Bladeless wind turbine and its wind induced vibration characteristics

作　　者：唐大伦 刘仰昭 戴靠山 施袁锋 蒲琼 Del ChungMing Yang David Yáez TANG Dalun;LIU Yangzhao;DAI Kaoshan;SHI Yuanfeng;PU Qiong;Del ChungMing Yang;David Yáez(Department of Civil Engineering,Sichuan University,Chengdu 610065,China;World Green Energy Technology Co.,Ltd.,Wenzhou 325011,China;Vortex Bladeless Ltd.,Madrid 28000,Spain)

机构地区：[1]四川大学土木工程系,成都610065 [2]沃德斯绿色能源科技有限公司,温州325011 [3]Vortex Bladeless Ltd.,Madrid 28000

出　　处：《振动与冲击》2025年第5期97-105,共9页Journal of Vibration and Shock

基　　金：国家自然科学基金(52108463);四川省重点研发项目(2023YFS0427);新能源工程结构优化及材料替代研究(23H0586)。

摘　　要：为探究无叶片风力发电机的风振特性,以某3 m高、额定功率100 W的无叶片风力发电机为研究对象开展研究。首先,建立风机的有限元模型,计算获得固有模态信息,并预测其风致振动;随后,对此风机的足尺模型进行风洞试验;最后,将试验结果与理论预测结果进行对比,综合分析其风致振动规律。结果表明:风机顶端横风向位移随着风速的增大表现出先增大后减小的趋势,呈现出典型的涡激振动现象,因此在高风速环境下无需考虑刹车系统等安全措施;同时,在风速稳定的情况下,风机顶端的位移时程接近标准正弦曲线,表现出稳定的风致振动;此外,风机各个方向的气动特征也大致相同,具有较好的全风向适应性,无需依赖额外的偏航系统即可应对风向改变。Here,to investigate wind-induced vibration characteristics of bladeless wind turbine,a 3 m high bladeless wind turbine with a rated power of 100 W was taken as the study object to perform investigation.Firstly,the finite element model of a wind turbine was established,its natural modal information was obtained through calculation and its wind-induced vibration responses were predicted.Subsequently,wind tunnel tests were conducted for a full-scale model of wind turbine.Finally,the test results were compared with theoretical predictions to comprehensively analyze wind turbine’s wind-induced vibration laws.The results showed that the displacement in cross-wind direction at wind turbine top increases firstly and then decreases with increase in wind speed to exhibit typical vortex induced vibration phenomena,so safety measure of braking system doesn’t need to be considered under high wind speed environment;at the same time,under stable wind speed,the displacement time-history at wind turbine top approaches a standard sine curve to exhibit stable wind-induced vibration;in addition,aerodynamic characteristics of wind turbine in all directions are roughly the same to exhibit better adaptability to all wind directions,so wind turbine can cope with changes in wind direction without relying on additional yaw system.

关 键 词：无叶片风力发电机 涡激共振 风洞试验 有限元计算 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]