Toyota Jidosha Kabushiki Kaisha

Morio Oba

Masato Kato

Masaaki Sato

Takatoshi Negishi

Goro Takahashi

Koji Sato

Junichi Harada

Yoshio Shirai

Mikio Sato

Yasushi Okamoto

Yasuo Mishima

Shigeharu Ueyama

Seigo Kuzumaki

Koji Fujiwara

Ryuji Nagata

Masataka Sato

Kazuhiro Miyauchi

Katsuhiko Kato

Shouichi Okumura

Yoshiki Konishi

Koji Eguchi

A design data generating apparatus for generating new design data of an article by performing a shape transformation process with respect to design data of the article which has been already generated comprises an input device which receives transformation instructions from an operator and an operation device which performs an operation of the design data in accordance with the input transformation instructions. The input device receives input of allocation of article shape attribute between an attribute of a transformation region which is to be transformed and an attribute of a maintaining region which maintains its shape, and input of a transformation instruction vector defined by a direction and an amount of transformation with respect to the article. The operation device performs a transformation process with respect to a node which defines an article shape of the transformation region in accordance with the transformation instruction vector. Specifically, the operation device fixes a node located at a boundary between the transformation region and the maintaining region, and transforms a node not located at the boundary. Thus, a new three-dimensional shape which the operator expects can be efficiently designed.

Design data generating apparatus and design data generating method

A product design CAD data reconstruction unitreconstructs product design CAD data used for product evaluation regarding an initial design so as to fulfill restrictive conditions obtained from the product evaluation based on a product structure for the initial design. The reconstructed product design CAD data is stored in a product design CAD data database. Upon reception of a corrected design obtained by correcting the initial design, the product design CAD data for the initial design is read from the product design CAAD data database, and the product design CAD data is corrected along a design surface of the corrected design.

System and method for product designing, and recording medium

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Gamagori, Japan

Morio Oba