Data processing: generic control systems or specific application – Specific application – apparatus or process – Product assembly or manufacturing
Reexamination Certificate
2007-01-30
2007-01-30
Picard, Leo (Department: 2125)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Product assembly or manufacturing
C700S165000, C700S182000, C072S369000, C114S264000
Reexamination Certificate
active
10504269
ABSTRACT:
The present invention provides a shell plating developing method leading to reduction of the amount of machining and improvement of the efficiency in manufacturing the shell plating. In the shell plating developing method according to the invention, a shell plating lattice system is constituted, and the directions in which the curvature of a shell plating P at each lattice point of the shell plating lattice system is maximum and minimum are determined (s102). Also, lines extending in the directions in which the absolute value of the curvature is large and small are determined as a first connection line L1and a second connection line L2(s104). The first connection line L1is developed as a straight line on a flat plate P″ while the length of the first connection line L1is maintained. And the second connection line L2is developed as a line perpendicular to the straight line on a flat plate P″ in such a way that the integrated value of the amount of machining corresponding to the extension ratio or the shrinkage ratio of the second connection line L2is minimum.
REFERENCES:
patent: 5156034 (1992-10-01), Lorbach
patent: 5682782 (1997-11-01), Rosene et al.
patent: 6112568 (2000-09-01), Lindstrom
Azariadis, P. et al.. Design of plane developments of doubly curved surfaces, Computer-Aided Design, vol. 29, No. 10, pp. 675 to 685, Oct. 1997, Elsevier Science Ltd., GB.
Matsukawa Tadashi
Matsuoka Kazuyoshi
Birch & Stewart Kolasch & Birch, LLP
National Maritime Research Institute
Picard Leo
Rao Sheela S.
The Cooperative Association of Japan Shipbuilders
LandOfFree
Shell plating developing method, shell plating manufacturing... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Shell plating developing method, shell plating manufacturing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shell plating developing method, shell plating manufacturing... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3783521