基于响应曲面法的风力机叶片覆冰载荷影响因素分析  

ANALYSIS OF AFFECTING FACTORS OF ICE COATING LOAD ON WIND TURBINE BLADE BASED ON RESPONSE SURFACE METHOD

作　　者：李姜超 成斌[1] 李西洋[1] LI Jiang-chao;CHENG Bin;LI Xi-yang(School of Mechanical and Electrical Engineering,Shihezi University,Shihezi 832000,China)

机构地区：[1]石河子大学机械电气工程学院,石河子832000

出　　处：《玻璃钢／复合材料》2018年第9期17-22,共6页Fiber Reinforced Plastics/Composites

基　　金：国家自然科学基金新疆风电装备叶片覆冰及其疲劳损伤建模研究(51665052)

摘　　要：以NACA4412翼型风力机叶片为研究对象,通过搭建风力机试验台,以风速、温度、湿度和运行时间为影响因素,利用响应曲面分析法,设计四因素三水平试验方案。采用覆冰叶片整体变形量作为评价指标,探究四个因素对风力机叶片覆冰载荷的影响。运用Design-Expert 8.0数学统计软件,建立覆冰风力机叶片变形量多元响应函数模型,分析因素与响应值变形量之间的响应曲面关系,预测覆冰叶片的变形情况。通过试验验证该回归模型的准确性和可靠性,为风力机叶片覆冰载荷相关研究提供理论依据。该研究对进一步提高风力机运行稳定性,降低运维成本具有重要意义。In this paper,the NACA4412 airfoil blade is taken as the research object.By constructing the wind turbine test bench,the four-factor and three-level test schemes are designed using the response surface analysis method by taking the wind speed,temperature,humidity and running time as the influencing factors.The overall deformation of the iced blade was used as the evaluation index to explore the influence of four factors on the ice load of the wind turbine blade.Using Design-Expert 8.0 mathematics statistics software,a multi-variable response model of blade deformation of ice-covered wind turbine was established.The response surface relationship between the factor and the response deformation was analyzed to predict the deformation of ice-covered blades.The accuracy and reliability of the regression model are verified by experiments,which provides a theoretical basis for the research on wind load of wind turbine blades.This research is of great significance to further improve the stability of wind turbine operation and reduce the operation and maintenance cost.

关 键 词：覆冰载荷 风力机叶片 响应曲面法 变形量 

分 类 号：TB332[一般工业技术—材料科学与工程]