A CAD system development for pipe and cable planning

2012 ◽  
Author(s):  
Qiang Liu ◽  
Ruqin Xu ◽  
Xiaoqin Liu
Keyword(s):  
System Development ◽  
Cad System

Close Framework CAD System Development on Airport Project

2012 ◽  
Vol 256-259 ◽  
pp. 2831-2837
Author(s):  
Qi Jie Teng
Keyword(s):  
System Development ◽  
Visual Basic ◽  
Automatic Generation ◽  
Economic Benefits ◽  
Secondary Development ◽  
Program Code ◽  
Element Analysis ◽  
Cad System ◽  
Construction Plans ◽  
Professional Characteristic

Close framework structure becomes recently a competitive solution for taxiway bridges. Due to no pile foundation construction, it has short duration and significant economic benefits. The development of close framework CAD system adopts Visual Basic and bases on secondary development interface in AutoCAD VBA to draw construction plans, such as structure diagram, bridge layout, prestressed tendons and ordinary reinforced chart. Another feature is the automatic generation of materials amount Excel tables and model for finite element analysis. The main program code of graphic object realization and deign parameters import are described. For the unique professional characteristic in airport project, the software system has a considerable engineering prospect.

Based on OOA Modeling of Gantry Crane CAD System

2013 ◽  
Vol 712-715 ◽  
pp. 1180-1184
Author(s):  
Ge Ning Xu ◽  
Jin Shuai Liu ◽  
Jun Bing Yang
Keyword(s):  
System Development ◽  
Object Oriented ◽  
Modeling Method ◽  
System Model ◽  
Gantry Crane ◽  
Cad System ◽  
Analysis Phase

In order to explore the application of the object-oriented theory in the analysis phase of the gantry crane CAD system development, the OOA modeling method is used to establish the system model and the detailed process guide and engineering strategies of modeling activities are presented, eventually a OOA model of the system is established and a foundation is lay for the subsequent OOD and OOP of the system.

The Development of Physique Monitoring CAD System Based on RBF Neural Networks

2011 ◽  
Vol 84-85 ◽  
pp. 24-27
Author(s):  
Yong Qing Wang ◽  
Lei Liu
Keyword(s):  
Neural Networks ◽  
Expert Knowledge ◽  
System Development ◽  
Modern Society ◽  
Rbf Neural Networks ◽  
Domain Expert ◽  
Traditional Methods ◽  
Cad System

The traditional methods of physique monitoring are limited to medical and hygienic science, which can not meet the requirements of development in modern society. We apply in this paper the method of RBF Neural Networks to the CAD system development of physique monitoring, and achieve a consulting result approximating to the domain expert knowledge with better performance.

scholarly journals Intelligent agents for feature modelling in computer aided design

2017 ◽  
Vol 5 (1) ◽  
pp. 19-40 ◽  
Author(s):  
Alain-Jérôme Fougères ◽  
Egon Ostrosi
Keyword(s):  
Intelligent Agents ◽  
Computer Aided Design ◽  
Formal Model ◽  
System Development ◽  
Point Of View ◽  
Intelligent Cad ◽  
Cad System ◽  
Virtual Links ◽  
Feature Modelling ◽  
Cad Modelling

Abstract CAD modelling can be referred to as the process of generating an integrated multiple view model as a representation of multiple views of engineering design. In many situations, a change in the model of one view may conflict with the models of other views. In such situations, the model of some views needs to be adapted in order to make all models consistent. Thus, CAD models should be capable of adapting themselves to new situations. Recently, agent based technologies have been considered in order to increase both knowledge level and intelligence of real and virtual objects. The contribution of this paper consists in introducing the intelligent agents in intelligent CAD modelling. The proposed agents are elementary geometrical and topological objects. They incorporate the functions of observation, decision and action, and possess their own knowledge. Agents have the capacity of communication and inference based on the feature grammars. They are modelled as bio-dynamic objects that enjoy the properties of fusion, division and multiplication. Being aware of the context, the proposed agents interact to form potential regional transitory communities, called regions. Being aware of their belonging in a region, agents interact by generating virtual links (virtual extensions). These virtual links produce: (a) fusion of agents, (b) division of agents and c) multiplication of agents. The emerged agents interact with the other agents in a region to recognize each other and to form specific sub-communities, called intelligent features. From a CAD software development point of view, this paper advocates the idea of a new phase of CAD system development based on the agent-oriented programming (AOP) paradigm. Highlights This paper proposes the agent paradigm for intelligent CAD modelling. Second section presents the state of art. In the third section, using the linguistic hypothesis of product design, a feature modelling formalism is presented. Fourth section presents a formal model for agent modelling. In the fifth section, agents for feature generation and modelling are formalised and modelled. The sixth section presents the application of the method. Finally, in the last section, the conclusion and future developments are proposed.

Cross-sectional TEM specimen preparation from magneto-optical disk by ultramicrotomy

1993 ◽  
Vol 51 ◽  
pp. 236-237
Author(s):  
F. Shaapur ◽  
M.J. Kim ◽  
Seh Kwang Lee ◽  
Soon Gwang Kim
Keyword(s):  
System Development ◽  
Thin Foil ◽  
Specimen Preparation ◽  
Material System ◽  
Cross Sectional ◽  
Protective Layers ◽  
New Material ◽  
Diamond Saw ◽  
Original Production ◽  
Thick Medium

TEM characterization and microanalysis of the recording media is crucial and complementary to new material system development as well as quality control applications. Due to the type of material generally used for supporting the medium, i.e., a polymer, conventional macro- and microthinning procedures for thin foil preparation are not applicable. Ultramicrotorny (UM) is a viable option and has been employed in previous similar studies. In this work UM has been used for preparation of XTEM samples from a magneto-optical (MO) recording medium in its original production format.The as-received material system consisted of a 4-layer, 2100 Å thick medium including a 300 Å TbFeCo layer enveloped by silicon nitride protective layers supported on a 1.2 mm thick × 135 mm (5.25 in.) diameter polycarbonate disk. Recording tracks had an approximate pitch of 1.6 μm separated by 800 Å deep peripheral grooves. Using a Buehler Isomet low-speed diamond saw, 1 mm wide and 20 mm long strips were cut out of the disk along the recording tracks.

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