摘要
在飞机机身的上下位置分别安装一个激光器,提出了一种实时测量在飞行过程中机翼弹性变形量的方法。以激光器与安装反射镜的机翼顶端之间的测量距离数据为依据,得到机翼或机身上任意点的实时变形量。机翼或机身上任意点的实时变形量是从机翼变形数据库中提取的数据量计算得到。根据弹性薄板理论,利用理想二维梁为例说明了该方法的实现过程,并且进行仿真说明。该方法对实时测量机翼弹性变形量具有普遍意义和实际应用价值。
A novel method of real-time measurement for aerodynamics deformation of the wing during the flutter by using two-laser range, in which one laser is fixed above the plane and the other is fixed below the plane, is proposed. Based on the daturn that are distances between lasers and reflector on wingtip, thus the displacement of the wingtip is acquired by geometry calculating at any moment. The displacement of the point on the surface of the wing is acquired from the database including the function of the aerodynamics deformation of the wing formed by the aerodynamics experimentation. Based on theory of elastic thin plate, a simple two-dimensional example is used to explain the method mentioned above, and emulation is showed. The method proposed here is useful and all pervading for real-time measurement of deformation of wing during flutter.
出处
《光学技术》
EI
CAS
CSCD
北大核心
2006年第3期333-336,共4页
Optical Technique
基金
国防预研基金项目(6140434)
关键词
机翼变形
激光测距
弹性薄板理论
数学型模
deformation of wing
laser range
theory of elastic thin plate
math model
