摘要
复合材料损伤检测是目前直升机地面维护中急待解决的难题。根据直升机定检要求,应用红外热像检测技术对其旋翼桨叶和复合材料蒙皮进行检测研究。在外部热激励下,由于内部热传导过程的不同导致对应表面温度场分布不均,使得红外热图像能够清晰显示出复合材料构件的内部结构特征或损伤。该技术检测快速且可视化操作,能为修理或更换方案的制订提供直观的损伤影像和参考数据,在直升机日常和应急维护保障中的应用前景广阔。
Composites damage test is a difficult problem in helicopter groud maintenance at present. According to rules of helicopter periodic inspection and repair, thermography testing was applied to detect low energy impact damage in rotor blade and composites skin in this paper. By heat stimulating outside, interior different heat exchange course makes different temperature distributing in corresponding surface, so infrared images can show clearly structure character and damage inside composites. This technique is quick and visual, it can provide intuitionistic damage image and referenced data for making repair or replacing plan, so it has wide applied prospeet in daily and emergency maintenance of helicopter in service.
出处
《激光与红外》
CAS
CSCD
北大核心
2009年第11期1149-1152,共4页
Laser & Infrared
基金
国家自然科学基金项目(No.10502035)资助
关键词
红外检测
复合材料
直升机
地面维护
thermography testing
composites
helicopter
groud maintenance
