Abstract Model based systems engineering is often used as an alternative to the document design of software or other technical systems. Its focus lies on modelling procedural aspects products, rather than physical aspects. In mechanical engineering, geometry and properties product like strength, stiffness, kinematic kinetic behaviour are described by CAD-systems. This paper tries link model too...

The roadblock to wide acceptance of asynchronous methodology is poor CAD support. Current asynchronous design tools require a significant re-education of designers, and their capabilities are far behind synchronous commercial tools. This paper considers the testing methodology for a particular subclass of asynchronous circuits (Null Convention Logic or NCL) that entirely relies on conventional ...

In recent years, CAD/CAM has been extensively applied in global machinery with the rapid development of computer technologies. Due to the technical application of CAD/CAM in manufacturing industry, enterprises have gradually changed their traditional approaches to design and manufacture products. Meanwhile, qualitative changes begin to occur to the production process and control pattern. Hence,...

Automating redesign of electro-mechanical artifacts presents many difficult problems to the developers of intelligent CAD systems. To address this need requires we identify new AI technologies for representation and planning and effectively apply them to the manufacturing problem. In this paper, we present the redesign problem and outline some of the critical points; presenting how to bring exi...

| A comparison with synchronous circuits suggests four opportunities for the application of asynchronous circuits: high performance, low power, improved noise and EMC properties, and a natural match with heterogeneous system timing. In this overview article each opportunity is reviewed in some detail, illustrated by examples, compared with synchronous alternatives, and accompanied by numerous p...

The possibility to control access to data and tools is vital in many organizations where design activities take place. However, in other organizations a stringent access control mechanism would seriously hamper the cooperation among designers. In this paper we present a configurable and unobtrusive access control mechanism for CAD frameworks that is flexible enough to support a wide range of ac...

Over the last 50 years, conventional programming of the numerical controlled (NC) machine tools has been based on a data model stipulated by ISO 6983, or otherwise known as G-codes. It was designed to sequentially pass instructions to the controls of machine tools with little, if any, intelligence. It has been realized that this standard has led to serious impediments for the fulfilment of tota...

Soft computing techniques are gaining momentum as tools for network traffic modeling, analysis and control. Efficient hardware implementations of these techniques that can achieve real-time operation in high-speed communications equipment is however an open problem. This paper describes a platform for the development of fuzzy systems with applications to communications systems, namely network t...

Initially, the computers and software were supposed to complement engineer’s traditional techniques, replacing drawing board calculator. Today, with spe-cialized almost completely replace methods. There is given an overview of graphic editors AutoCAD Autodesk Inventor, possibilities performing designs in three-dimensional space using parametric modeling. The advantages disadvantages each progra...

Thermal engineering has long been left out of the concurrent engineering environment dominated by CAD (computer aided design) and FEM (finite element method) software. Current tools attempt to force the thermal design process into an environment primarily created to support structural analysis, which results in inappropriate thermal models. As a result, many thermal engineers either build model...