Design support apparatus, design support method, and program

Patent metadata

Field	Value
Publication number	US-2017308631-A1
Application number	US-201515511400-A
Country	US
Kind code	A1
Filing date	Sep 16, 2015
Priority date	Sep 16, 2014
Publication date	Oct 26, 2017
Grant date	—

Abstract

A design support apparatus supporting designing of a product which uses a fiber material includes a processor that creates a predicted shape model by predicting a shape of the product before a deformation processing. The processor: creates a 3-dimensional shape model of the product; creates curved shape models by separating the 3-dimensional shape model into two or more fiber layers; sets a correspondence relationship between the curved shape models; creates an orientation vector field in the curved shape models; and predicts the shape of the product before the deformation processing by developing the curved shape models on a flat surface based on the correspondence relationship between the curved shape models and the orientation vector field in the curved shape models, and creates the predicted shape model based on the predicted shape.

First claim

1 : A design support apparatus for supporting designing of a product which uses a fiber material,
the design support apparatus comprising a processor that creates a predicted shape model by predicting a shape of the product before deformation processing, wherein the processor: creates a 3-dimensional shape model of the product; creates curved shape models by separating the 3-dimensional shape model into two or more fiber layers; sets a correspondence relationship between the curved shape models; creates an orientation vector field in the curved shape models; and predicts the shape of the product before the deformation processing by developing the curved shape models on a flat surface on the basis of the correspondence relationship between the curved shape models and the orientation vector field in the curved shape models, and creates the predicted shape model on the basis of the predicted shape.

2 : The design support apparatus according to claim 1 ,
wherein the processor separates the 3-dimensional shape model into two fiber layers that are an upper surface and a lower surface.

3 : The design support apparatus according to claim 1 ,
wherein the processor generates meshes from the curved shape models by using a plurality of triangles and sets the correspondence relationship between the curved shape models by associating vertexes of the triangles formed in a curved shape model, which is a fiber layer on an uppermost surface, with inside or edges of the triangles formed in a curved shape model which is a fiber layer on a lowermost surface.

4 : The design support apparatus according to claim 3 ,
wherein the processor generates the orientation vector field in the curved shape models by setting an orientation vector, which is designated via an input unit, to triangles formed in a border region of the curved shape models and making the set orientation vector propagate to other triangles, thereby setting the orientation vector to all triangles formed in the curved shape models.

5 : The design support apparatus according to claim 1 ,
wherein the processor develops the curved shape models on the flat surface while maintaining the correspondence relationship between the curved shape models and maintaining the orientation vector field in the curved shape models.

6 : A design support method for supporting designing of a product which uses a fiber material,
the design support method comprising the following steps executed by a processor that creates a predicted shape model by predicting a shape of the product before deformation processing: a first step of creating a 3-dimensional shape model of the product; a second step of creating curved shape models by separating the 3-dimensional shape model into two or more fiber layers; a third step of setting a correspondence relationship between the curved shape models; a fourth step of creating an orientation vector field in the curved shape models; and a fifth step of predicting the shape of the product before the deformation processing by developing the curved shape models on a flat surface on the basis of the correspondence relationship between the curved shape models and the orientation vector field in the curved shape models, and creating the predicted shape model on the basis of the predicted shape.

7 : A program for supporting designing of a product which uses a fiber material,
the program causing a computer to execute: a first step of creating a 3-dimensional shape model of the product; a second step of creating curved shape models by separating the 3-dimensional shape model into two or more fiber layers; a third step of setting a correspondence relationship between the curved shape models; a fourth step of creating an orientation vector field in the curved shape models; and a fifth step of predicting the shape of the product before the deformation processing by developing the curved shape models on a flat surface on the basis of the correspondence relationship between the curved shape models and the orientation vector field in the curved shape models, and creating the predicted shape model on the basis of the predicted shape.

8 : The design support apparatus according to claim 2 ,
wherein the processor generates meshes from the curved shape models by using a plurality of triangles and sets the correspondence relationship between the curved shape models by associating vertexes of the triangles formed in a curved shape model, which is a fiber layer on an uppermost surface, with inside or edges of the triangles formed in a curved shape model which is a fiber layer on a lowermost surface.

Assignees

• Ihi Corp
• Univ Tokyo

Inventors

• Hishida Hiroyuki
• Inagaki Koichi
• Nakamura Takeshi
• Watanabe Fumiaki
• Morioka Kotaro
• Ohtake Yutaka
• Suzuki Hiromasa
• Nagai Yukie

Classifications

• G06F30/23 Primary

  using finite element methods [FEM] or finite difference methods [FDM] · CPC title

• G06F30/20

  Design optimisation, verification or simulation (optimisation, verification or simulation of circuit designs G06F30/30) · CPC title

• G06F30/17 Primary

  Mechanical parametric or variational design · CPC title

• G06F2113/26

  Composites · CPC title

• G06N5/04

  Inference or reasoning models · CPC title