| 预弯外形对风力机叶片气弹稳定性的影响 |
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| 引用本文： | 郭小锋,黄鑫祥,汪泉,张忍. 预弯外形对风力机叶片气弹稳定性的影响[J]. 太阳能学报, 2022, 43(3): 442-448. DOI: 10.19912/j.0254-0096.tynxb.2020-0509 |
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| 作者姓名： | 郭小锋 黄鑫祥 汪泉 张忍 |
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| 作者单位： | 1.中原工学院机电学院,郑州 450007; 2.湖北工业大学机械工程学院,武汉 430068 |
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| 基金项目： | 国家自然科学基金（51705545;51975190）； |
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| 摘 要： | 为了研究预弯外形对风力机气弹稳定性的影响,以某2 MW低风速风电叶片为研究对象,采用外形参数化表达方法构造叶尖预弯量分别为3、4和5 m的叶片.基于SIMPACK软件建立并验证气-弹-控耦合的风力机整机模型,对配装不同预弯叶片的风力机进行仿真分析.结果显示,在湍流风况下,随着叶尖预弯量的增大,叶根载荷、叶尖附近截面的气...
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| 关 键 词： | 风力机叶片 刚柔耦合 气弹变形 预弯外形 气弹稳定性 |
| 收稿时间： | 2020-06-04 |
INFLUENCE OF PRE-BEND SHAPE ON AEROELASTIC PERFORMANCE OF WIND TURBINE BLADES |
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| Guo Xiaofeng,Huang Xinxiang,Wang Quan,Zhang Ren. INFLUENCE OF PRE-BEND SHAPE ON AEROELASTIC PERFORMANCE OF WIND TURBINE BLADES[J]. Acta Energiae Solaris Sinica, 2022, 43(3): 442-448. DOI: 10.19912/j.0254-0096.tynxb.2020-0509 |
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| Authors: | Guo Xiaofeng Huang Xinxiang Wang Quan Zhang Ren |
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| Affiliation: | 1. School of Mechanical Science & Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China; 2. School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, China |
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| Abstract: | In order to study the effect of the pre-bend shape on the aeroelastic stability of wind turbines, by using the parametric modeling method, three blades with different pre-curved shape were constructed. Based on SIMPACK software, the multi-disciplinary model of wind turbines coupling of aerodynamics-elasticity-control was built. As a research object, the performances of a 2 MW wind turbine with different pre-bend blades were studied, the result shows that under turbulent wind conditions with the increase of pre-bend value of the blade-tip, the ultimate loads of the blade root and the dynamic deformations of the blade section near the blade-tip increased significantly. By through the frequency-domain analysis of the pre-bend 5 m blade, resonance occurs near the first natural frequency in edgewise and torsional deflection, which means that the oversize amount of the pre-bend value in blade-tip will cause instability problems. |
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| Keywords: | wind turbine blades rigid-flexible coupling aero-elastic deformation pre-bend shape aero-elastic stability |
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