Computer-aided design (CAD) is the use of computer programs to create two- or three-dimensional (2D or 3D) graphical representations of physical objects. CAD software may be specialized for specific applications. CAD is widely used for computer animation and special effects in movies, advertising, and other applications where the graphic design itself is the finished product. CAD is also used to design physical products in a wide range of industries, where the software performs calculations for determining an optimum shape and size for a variety of product and industrial design applications.

In product and industrial design, CAD is used mainly for the creation of detailed 3D solid or surface models, or 2D vector-based drawings of physical components. However, CAD is also used throughout the engineering process from conceptual design and layout of products, through strength and dynamic analysis of assemblies, to the definition of manufacturing methods. This allows an engineer to both interactively and automatically analyze design variants, to find the optimal design for manufacturing while minimizing the use of physical prototypes.

Benefits of CAD

The benefits of CAD include lower product development costs, increased productivity, improved product quality and faster time-to-market.

  • Better visualization of the final product, sub-assemblies and constituent parts in a CAD system speeds the design process.
  • CAD software offers greater accuracy, so errors are reduced.
  • A CAD system provides easier, more robust documentation of the design, including geometries and dimensions, bills of materials, etc.
  • CAD software offers easy re-use of design data and best practices.

CAD Software

Here are examples of CAD software applications:

Fibersim pour la conception et la fabrication de structures en composites novatrices, durables et légères.

NX améliore la productivité pendant tout le développement des produits, en permettant une modélisation plus rapide et plus souple des pièces et des assemblages, un meilleur travail en multiCAO, une simulation numérique rationalisée et une fabrication plus efficace.

Seat Design Environment (SDE) pour la conception et la fabrication de systèmes de sièges de transport et de composants d’intérieur novateurs.

Solid Edge est un portefeuille d'outils logiciels qui traite tous les aspects du processus de développement des produits  (conception 3D, simulation, fabrication, gestion de la conception, etc.) grâce à un écosystème croissant d'applications. Solid Edge associe la rapidité et la simplicité de la modélisation directe avec la flexibilité et le contrôle de la conception paramétrée, et cela grâce à la technologie synchrone.

Syncrofit pour la conception et la fabrication d’assemblages complexes et de grandes aérostructures.

The following software components are used by CAD software developers as the foundation for their applications:

D-Cubed Components are six software libraries that can be licensed by software developers for integration into their products. The capabilities they provide include parametric sketching, part and assembly design, motion simulation, collision detection, clearance measurement and hidden line visualization.

Parasolid is 3D geometric modeling component software, enabling users of Parasolid-based products to model complex parts and assemblies. It is used as the geometry engine in hundreds of different CAD, CAM and CAE applications.

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