Engineering Applications using CATIA and ANSYS
Highlights Introduction to CAD Some basic and Introduction to Some basic and Wrap-up and design and advanced 3D design ANSYS Work Bench advanced features Future outlook applications using features using (mechanical, of ANSYS WB CATIA V5 CATIA V5 thermal, etc.)
CAD; CAM; CAE Computer Aided Design (CAD) is the use of computer software to design a product or an object Computer Aided Manufacturing (CAM) is the use of computer software and hardware to plan, manage and control the operations of a manufacturing plant. Computer Aided Engineering (CAE) is the use of computer software to solve engineering problems and analyze products created using CAD 3 concepts which CATIA stands upon
CAD; CAM; CAE CATIA is an acronym for Computer Aided Three-dimensional Interactive Application. It is one of the leading 3D software used by organizations in multiple industries ranging from aerospace, automobile to consumer products. CATIA is a multi-platform 3D software suite developed by Dassault Systèmes, encompassing CAD, CAM as well as CAE CATIA is a solid modelling tool that unites the 3D parametric features with 2D tools and also addresses every design-to-manufacturing process The first release of CATIA was way back in 1977. The most popular version of CATIA is V5 which was introduced in 1998
CAD; CAM; CAE CATIA provides the capability to visualize designs in 3D. When it was introduced, this concept was innovative CATIA was extensively used in the design of the Mirage aircrafts; however the potential of the software soon made it a popular choice in the automotive sector as well CATIA can be used at different stages of the design to be used across varied industries – from parts design, surface design and assembly to sheet metal design. CATIA can also be used for CNC
CATIA Applications Kitchen Electrical Electrical tools appliances devices Automobiles Aerospace Ship Building and Space Anything you imagine!
CATIA offers many Part Design: The most essential workbench needed for solid modeling. workbenches that This CATIA module makes it possible to design precise 3D mechanical can be loosely partsesign. termed as modules. A few of Generative Shape Design: allows you to quickly model both simple and the important complex shapes using wireframe and surface features. workbenches include: Assembly: This is the workbench that allows connecting all the parts to form a machine or a component. Kinematic Simulation: Kinematics involves an assembly of parts that are connected together by a series of joints, referred to as a mechanism. This workbench shows how a machine will move in the real world.
CATIA opening screen message:
[Some] CATIA Modules • Sketcher: This module is responsible for the implementation of two-dimensional shapes, in preparation for make a three-dimensional commands on it. • Part Design: This module is responsible for converting two-dimensional graphics to three- dimensional objects which is most famous in Catia and is closely linked with sketcher module. • Assembly: This module is responsible for assembling the parts previously produced in Part Design. It shows the inter- relationships between the parts of the machine or any mechanical establishment
[Some] CATIA Modules • Drafting: This module is responsible, for converting what you see on the screen to standard engineering drawings can be traded in the workshop for manufacturing or save them for documentation. • Surface and Wire-Frame: With this module surfaces can be drawing with zero size and weight and has its uses in the aerospace, automotive, ships and Mold Design.
Main Screen and Design Options
Part Design main screen
Part Design main screen Sketcher: always start from 2D (scratch)
Sketcher Basis Product/Assembly design main screen
Profile toolbar: • The Profile toolbar contains 2D geometry commands. These geometries range from the very simple (point, rectangle, etc...) to the very complex (splines, conics, etc...).
Constraint toolbar • Constraint: Creates dimensional constraints. • Contact Constraint: Creates a contact constraint between two elements. • Fix Together: The fix together command groups individual entities together. • Auto Constraint: Automatically creates dimensional constraints.
3D Features (sketch-based) • http://www.staff.city.ac.uk/~ra600/ME2105/Catia%20course/ CATIA%20Tutorials/prtug_C2/prtugwd0201.htm
Example: Simple Pad-Pocket • Creating part bodies • Using Pad option • Using Pocket option
Example: Simple Nut • Creating part bodies • Creating edge fillets • Creating
Example: Simple Nut and Bolt
Example: Juice Glass • Creating Surface bodies • Using Revolve, Extrude, and Multi-sections option • Using Fill, Offset, and Surface Blending options
Example: Detergent Bottle:
Some Comparison AutoCAD VS. CATIA 2D Sketching/drawing AutoCAD CATIA Power but more difficult Powerful and easy to due to advanced features create included Possible Mechanical design with high Not possible accuracy Included Not included Assembly, sheet metal design, Included weldment Not included Any product lifecycle management Limited products Diverse/advanced calculation Limited/primitive Any, prominently Many, prominently Civil, mechanical design Range of Product Simulations Architecture 3D design potential Fields of application
Part 2 Finite Element Method (FEM) using ANSYS
Some History • Ansys software is used to design products and semiconductors, as well as to create simulations that test a product's durability, temperature distribution, fluid movements, and electromagnetic properties • Ansys Inc. is an American public company based in Pennsylvanya. It was founded in 1970 by John Swanson while working at the Westinghouse Astronuclear Laboratory in the 1960s. • At the time, engineers performed Finite Element Analysis (FEA) by hand. Ansys was one of the earliest FEA commercial software available for engineering applications
Overview of FEM using ANSYS • Ansys performs multi-physics simulations on wide range of engineering applications • Most recognized are Mechanical, thermal, and fluid flow analysis. It is also well used in electromagnetic and high frequency structure simulations (e.g. ANSYS HFSS) • There are many modules in Ansys. We will focus on Mechanical module here
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