论文部分内容阅读
航空透明件(以下简称透明件)是影响飞行安全的重要部件,它包括飞机上的风挡及坐舱盖等,其材料为甲基丙烯酸甲脂高聚化合物.在透明件的装配或检修时,经常需要了解其端缘位置、装配孔位置及孔与端缘的距离和孔距等参数.由于透明件端缘被尼龙纤维层和金属蒙皮所覆盖(图1),且检测的通常是在役飞机,用肉眼及一般测量工具无法获取所需的结构信息.因此,我们进行了用超声波检测透明件端缘结构的研究.以下以对端缘位置的检测为例来说明检测原理及方法.
Transparent parts of aviation (hereinafter referred to as transparent parts) is an important part of the impact on flight safety, which includes the windshield and cockpit cover on the aircraft, the material is methyl methacrylate polymer.In the transparent parts of the assembly or maintenance, Often need to know the end position, the location of the assembly hole and the distance between the hole and the end of the hole and other parameters.As the edge of transparent parts covered by nylon fiber layer and metal skin (Figure 1), and the detection is usually in Therefore, we carried out the research on the detection of the end structure of the transparent member by ultrasonic wave.The detection principle and method of the end position will be taken as an example in the following to illustrate the detection mechanism of the transparent member.