Lumlux Corp.

Nanjing University of Aeronautics and Astronautics

Honghua Chen

Ming Qiu

Jun Wang

Zhongde Shan

Qian Xie

Bo Cao

Meilin Ding

Zeyong Wei

Zhengyuan Wei

Yao Dong

Yong Deng

Lamp bracket

LED grow light

The present invention relates to an airplane structure stiffener repair method based on measured data guidance. The method includes: respectively measuring point cloud data on a surface of a structure stiffener and point cloud data on a surface of a to-be-assembled position of a body; respectively extracting all assembly plane features in two point cloud data based on an RANSAC algorithm; performing pre-alignment according to the plane features; performing accurate alignment based on a signed distance constraint according to repair tolerance requirements; and calculating a repair allowance, and generating a machining path to serve as an accurate machining basis. According to the method in the present invention, a repair amount can be accurately calculated by virtue of an alignment algorithm of the signed distance constraint, and an envelope relationship during model matching is met.

Airplane structure stiffener repair method based on measured data

A method for dynamically measuring deformation of a rotating-body mold, including: (S) subjecting an overall outer surface of the rotating-body mold to three-dimensional measurement to acquire an initial point cloud data; (S) shooting, by a multi-camera system, the mold from different angles to obtain three-dimensional coordinates of marking points and coding points on the overall outer surface of the rotating-body mold; (S) rotating the mold, and repeatedly photographing the marking points and the coding points on the mold surface under different angle poses; and calculating three-dimensional coordinates of the marking points and the coding points; and (S) predicting a point cloud data of the outer surface under different angle poses based on a conversion relationship among the marking points to analyze a deformation degree of the mold during a rotation process.

Method for dynamically measuring deformation of rotating-body mold

Plant grow light

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Jiangsu, China

Honghua Chen