DocumentCode
3150727
Title
Some Consideration on the Data Model of Geometric Data Bases
Author
Zhang, Jinglun ; Wang, Ronhua
Author_Institution
Manufacturing Department, Beijing Institute of Aeronautics and Astronautics, Beijing, China
fYear
1984
fDate
25-27 June 1984
Firstpage
629
Lastpage
633
Abstract
This paper presents a required geometric model for mechanical parts and proposes a network + relational hybrid data model in the geometric data base system, in which the data structure is based on so called ´Complete Weak Connected Graph´ (CWCG) and some new concepts such as ´Entity Type´, ´Representation Type´ and ´Entity´ are put forward. In addition, we introduce a ´Set record´ into a set to describe the semantic relation among records. We are trying to make the data model capable of reflecting the real world more exactly and more convenient to use.
Keywords
Aerodynamics; Blades; CADCAM; Computer aided manufacturing; Data engineering; Data models; Data structures; Heart; Solid modeling; Turbines;
fLanguage
English
Publisher
ieee
Conference_Titel
Design Automation, 1984. 21st Conference on
ISSN
0738-100X
Print_ISBN
0-8186-0542-1
Type
conf
DOI
10.1109/DAC.1984.1585865
Filename
1585865
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