Patent №
US 11,543,795
Granted
2023-01-03
Filed 2020
Owner
NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS
Lab
—
AI components
1
vision
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
17026262
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.
AI classification
Ownership
NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS
assignment · 618950465
Assignors
WANG, JUN, WEI, ZEYONG, CHEN, HONGHUA
On an employer assignment, the assignors are typically the inventors.