针对风力发电机组叶片的内部裂纹损伤,采用试验研究的方法,探究其在不同环境温度、辐照度、风速作用下的热响应变化规律,明确环境温度、辐照度和风速对热响应的影响水平。结果表明：内部裂纹区域与无损区域的热对比度变化可分为3个阶段,从试验初期（0~40 s）的尚未形成或较微弱,到试验中期的快速增长,再到试验后期的相对稳定;环境温度对内部裂纹区域与无损区域的热对比度无显著影响,而辐照度有极显著的影响,风速有显著影响。
Abstract
To address the internal crack damage of wind turbine blades, an experimental approach was employed to investigate the variation in thermal response under different ambient temperatures, irradiance levels, and wind speeds. The study aimed to determine the extent to which these environmental factors influence the thermal response. The results indicate that the thermal contrast between the cracked and undamaged regions evolves through tjrpigj three stages： from the initial phase of the experiment （0~40 s）with nonexistent or weak contrast, a mid-phase with rapid contrast increase, and a late phase with relatively stable contrast. Ambient temperature has no significant effect on the thermal contrast between the internal cracked region and the undamaged region, while irradiance has a highly significant effect and wind speed has a significant effect.
关键词
风力发电机组叶片 /
内部损伤 /
裂纹 /
热响应 /
环境气候
Key words
wind turbine blades /
internal damage /
cracking /
thermal response /
environmental climate
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基金
内蒙古自治区自然科学基金（2023ZD12; 2023MS05043）; 内蒙古自治区高等学校科学技术研究项目（NJZZ23031）; 内蒙古自治区“草原英才”工程现代农牧业工程新技术研发及应用创新人才团队（内组通字[2018]19号）
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