Flexible wall profile curve measuring method under working conditions

The invention discloses a flexible wall profile curve measuring method under a working condition, and relates to the technical field of aerodynamics test.The method comprises the steps that a vision measuring unit is installed in a preset area of a flexible wall spray pipe, and the vision measuring unit is used for obtaining a flexible wall side curve area image of the flexible wall spray pipe under the working condition; the flexible wall side curve area image comprises a tangent line of a flexible wall and a side wall of the flexible wall nozzle; and coordinates of the tangent line are obtained, and curve information of the flexible wall profile corresponding to the tangent line is obtained based on the coordinates of the tangent line. The flexible wall profile curve can be measured under the working condition. 本发明公开了工况条件下柔壁型面曲线测量方法，涉及空气动力学测试技术领域，所述方法包括：在柔壁喷管的预设区域安装视觉测量单元，视觉测量单元用于在工况下获得柔壁喷管的柔壁侧边曲线区域图像，所述柔壁侧边曲线区域图像中包括柔壁喷管的柔壁与侧壁的切线；获得所述切线的坐标，基于所述切线的坐标获得所述切线对应的柔壁型面曲线信息。本凡能够实现在工况条件下对柔壁型面曲线进行测量。