Title:
線状加熱の加熱方案算出方法
Document Type and Number:
Japanese Patent JP4322460
Kind Code:
B2
Abstract:
A distribution of bending principal strains giving a target shape of a curved surface is obtained (Step S1), and a calculation grid is divided along the direction of the bending principal strains (Step S2). A database storing actual measurement values of relations between heating conditions and deformation amounts is prepared (Step S3). The directions of the bending principal strains are divided into the directions of the maximum and minimum bending principal strains (Step S4) for each calculation grid. Then, a heating condition for obtaining a bending strain satisfying the maximum bending principal strain is obtained by a heating line perpendicular to the direction of the maximum bending principal strain, and a membrane strain generated accompanying with heating in this case is obtained by referring to the database (Step S5). Membrane strains generating a deflection of the target shape of a curved surface are calculated in consideration of the distribution of the membrane strains obtained in Step S5, and a heating condition satisfying the membrane strains in the two principal axis directions is obtained (Step S6). Then, a heating procedure is determined (Step S7).
Inventors:
Takayama Ishiyama
Kobayashi Jun
Kobayashi Jun
Application Number:
JP2002038329A
Publication Date:
September 02, 2009
Filing Date:
February 15, 2002
Export Citation:
Assignee:
IHI Co., Ltd. Marine United
International Classes:
B21D11/20; G06F17/50
Domestic Patent References:
| JP6226360A | ||||
| JP7024534A | ||||
| JP7075835A | ||||
| JP10058052A | ||||
| JP10277650A | ||||
| JP10230326A | ||||
| JP2000237826A | ||||
| JP2000094044A | ||||
| JP10146621A | ||||
| JP7060368A | ||||
| JP5076947A | ||||
| JP2001071041A |
Attorney, Agent or Firm:
Mitsuo Sakamoto