Patent ID: 8082052
Filing Date: 2011-12-20
Classification: B64F,G01S,G05B,Y02P,Y10T

Abstract:
1. A method for ensuring the dimensional constancy of multisegment physical structures, in particular aircraft structures, during assembly, comprising the following steps: setting up a spatially-fixed three-dimensional coordinate system which encloses the subsequent assembled physical structure, the spatially-fixed coordinate system being formed by a main transmitter and a plurality of secondary transmitters; introducing a plurality of segments of the physical structure to be assembled into the spatially-fixed three-dimensional coordinate system; recording the positions of the individual segments and of already assembled groups of segments repeatedly within the spatially-fixed three-dimensional coordinate system during assembly by the main transmitter and the secondary transmitters, wherein the positions of the secondary transmitters are monitored by the main transmitter, and the position of a respective segment or group of segments recorded by the secondary transmitters are corrected in the event of any discrepancy from preset nominal values of the positions of the secondary transmitters; and correcting the position of a respective segment or of a respective already assembled group of segments if a respective record shows that the positions of the respective segment or of the respective already assembled group of segments is outside a tolerance band, which is predetermined in accordance with a desired dimensional constancy, by a respective predetermined nominal value.