Once upon a time  people used to draft using pen and paper, once the design started being complex and need for the productivity increased, Need for CAD came into picture.

Drafting on paper, later got replaced by software like AutoCAD. This made it easier for people to Draft, but the process was time consuming

Then came the 3D design software, which made the whole process a lot more simpler, in a lesser time a more complex product could be designed.

So it’s necessary for us to know which software is to be used for our design and how they can be categorized. 

BASICALLY CAD SOFTWARE PACKAGES CAN BE DIVIDED INTO THREE CATEGORIES

  • 2D drawings/drafting
  • 3D modelling
  • Analysis

SO WHAT IS 2D DRAWING OR DRAFTING? WHAT SOFTWARE CAN I USE FOR IT?

mechanical-2d-drafting-1-1

A 2D drawing is a drawing that sits in only the X and Y axis. More simply, a 2D drawing is flat and has a width and length but no depth or thickness.

AutoCAD is widely used software used in the industry for 2D drawings. 
autocadlogo    

 

Software for 2D drafting  helps you to

  • Create and edit technical drawings.
  • Draft design more quickly, without using stencils and technical drawing instruments.
  • Customize templates and drawing more precisely.

3D MODELLING SOFTWARES

The 3D software market has never been in as much turmoil as it is right now

hpz1_summer2012_fig1

3D CAD software helps users explore design ideas, visualize concepts create 3D model of any object they desire .This object can then be manufactured at a fabrication facility or with new 3D printing technology; you can even manufacture it yourself!

It’s an amazing experience to see your ideas or the 2D sketch getting converted into a 3D  model with few clicks of mouse button.   

There are like 90+ software packages in this area

They can be divided into two categories

Technical design software and concept design software 

TECHNICAL DESIGN SOFTWARE’S (PARAMETRIC MODELLERS)

image1

These software are highly used by Engineers; here the products are designed for the purpose of manufacturing

Parametric is a term used to describe a dimension’s ability to change the shape of model geometry as soon as a the dimension value is modified.

SOME OF THE SOFTWARE PACKAGES USED ARE

CATIA                              catia-logo

SOLIDWORKS             solidworks

NX Unigraphics          nx

Autodesk Revit             autodesk-revit-logo

Pro-E                            proe_wf5-logo

Solid edge                  se

CONCEPT DESIGN SOFTWARE 

These software are good for surface design but not for parametric. It is very oriented for industrial/product designers.

If you need to iterate a lot on your model it can oblige you to redo several time the same operation (whoa! What’s that? Simply saying, when we   draw on a paper we draw 5 lines to get one correct line) these software favors such kind of operations.

image_sketchbook_468                             solidthinking_evolve95-2

 

ANALYSIS SOFTWARE (CAE)

                                                     automotive_07-620 These software packages are used for analysis task.Computer-aided engineering (CAE) is the use of computer software to simulate performance in order to improve product designs or assist in the resolution of engineering problems for a wide range of industries.

It includes simulation, validation, and optimization of products,  processes, and manufacturing tools.                                                                                          

BENEFITS OF CAE

  • Designs can be evaluated and refined using computer simulations rather than physical prototype testing, saving money and time.
  • CAE helps engineering teams manage risk and understand the performance implications of their designs.
  • It reduces product development cost and time, with improved product quality and durability.

simscale                                conceptual_rod_stress_zpsb4d51308

 

Computer-aided engineering is used in many fields such as automotive, aviation, space, and shipbuilding industries.

SOME OF THE SOFTWARE PACKAGE USED ARE

ANSYS Workbenc    ansys-logo-homepage-400x300

Nx Nastran                   nx-nastran-s

Simscale                     simscale_logo_rgb-01           

Hypermesh             l_hyperworks_logo     

        

Hope this article helped to understand the basic structure of it.

 Feel free to share your views and knowledge about the subject in the comment section, so that we can learn from each other.

 

                                                                                                                                    

 

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