The invention provides an unfolding plate blank for a bent and twisted stringer. The unfolding plate blank is obtained through straightening and unfolding a design digital model of the bent and twisted stringer, and comprises an upper web plate, a lower web plate and vertical bars, wherein the vertical bars are used for connecting the upper web plate and the lower web plate; a crossing line of a vertical bar reference surface and a lower web plate reference surface is a reference line for the unfolding plate blank; the reference line is a straight line section; the length of the reference line is identical to the length of the reference line of the design digital model of the bent and twisted stringer; the normal section of the upper web plate, the lower web plate and the vertical bras in any position on the reference line is identical to the normal section of the upper web plate, the lower web plate and the vertical bars in a position, corresponding to the reference line, in the design digital model of the bent and twisted stringer; and the vertical bar reference surface of the unfolding plate blank is a plane.
Unfolding plate blank for bent and twisted stringer
2015-09-09
Patent
Electronic Resource
English
IPC: | B64C AEROPLANES , Flugzeuge |
European Patent Office | 2024
|Stringer repair for wing stringer and method of repairing wing stringer
European Patent Office | 2020
|COMPOSITE STRINGER AND METHODS FOR FORMING COMPOSITE STRINGER
European Patent Office | 2020
|