%0 Journal Article
%T 全尺寸风机叶片疲劳加载系统设计及试验研究<br>Design and Experiment of Fatigue Loading System for Full Scale Wind Turbine Blade
%A 廖高华
%A 乌建中
%A 王亦春
%J 机械科学与技术
%D 2016
%X 为了验证风机叶片在设计使用寿命内能够承受设计规定的疲劳载荷，获得叶片性能参数，设计了一套风机叶片疲劳加载系统。采用模型优化配重块方法减小叶片弯矩分布误差，模糊自整定PID参数进行控制，进行风机叶片全尺寸疲劳试验，完成频率搜索及载荷谱加载测试过程。试验结果表明，系统能以搜索步长为0.01 Hz完成共振频率搜索与跟踪，加载维持峰值变化率在试验要求的误差范围内（5%），叶片根部的弯矩误差不超过±0.4%，检测效率得到提高，降低了设备成本，为风机叶片检测与分析提供了一种实用手段。<br>In order to verify the blade in the design of used life whether is able to withstand the design rules fatigue loading, a megawatt wind turbine blade fatigue loading system was designed. The system is composed of a power transmission system, support system, control system and protection system. It realized signal acquisition and communication control with virtual instrument software, fuzzy PID control. With the counterweight block optimizing, the bending moment distribution error of a blade is reduced, and frequency searching and tracking, frequency capture and load spectrum loading test are completed. Experimental results show that the system can complete resonance frequency searching and tracking in step 0.01 Hz, maintenance of peak loading rate of change is within the error range of the test requirement (±5%), the blade root moment error is less than ±0.4%, and it provides a practical method for the detection and analysis of of wind turbine blade
%K 全尺寸
%K 疲劳加载
%K 风机叶片
%K 弯矩优化
%K 试验&lt
%K br&gt
%K full scale
%K fatigue loading
%K design
%K wind turbine blade
%K optimization
%K test
%K fuzzy control
%K fatigue damage
%U http://journals.nwpu.edu.cn/jxkxyjs/CN/abstract/abstract6469.shtml