cad systems for 27510 lecture (1)

7/21/2019 CAD Systems for 27510 Lecture (1)

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Computer Aided Design (CAD)

Thanks to:

Darryl Hillman

Sam Cooper

Duncan Evans

Drew Holloway

Jonathan Sidaway



Introduction

Areas to be covered:

1. What is Computer Aided Desin!

". #riins o$ CAD

%. &ses o$ CAD

'. Computer Aided Architecture Desin (CAAD)

*. Electronic Desin Automation (ECAD)

+. &ses o$ CAD with an e,pert system

-. CAD Desin

. CAD / Databases



A quick intro

Video created by a student in USA as part of course

work

http://www.youtube.com/watch?v=57ZlXeR6usY

http://www.youtube.com/watch?v=57ZlXeR6usY



What is Computer Aided Design?

● CAD also 0nown as Computer Aided Dra$tin.

● here are % di$$erent types o$ CAD ("D2 ".*D and

%D).

● he so$tware is used to create and desin models

o$ these types and test them.



Origins of CAD

● he $irst source o$ CAD resulted $rom attempts to automate

the dra$tin process.

● hese developments were pioneered by the 3eneral 4otors

5esearch 6aboratories in the early 17+8s.

● CAD became more widely used a$ter 17-8 because o$

technoloical advancements.

● CAD allowed users to desin products much 9uic0er

without the production o$ an actual product.



•einnin in the 178s Computer;Aided Desin prorams

reduced the need o$ dra$tsmen sini$icantly.

•heir a$$ordability and ability to run on personal computers

also allowed enineers to do their own dra$tin wor0.



Uses of CAD

CAD is used to desin a variety o$ di$$erent products

$or a variety o$ $ields such as

● Architecture

● Electronics

● Automotive enineerin

● <ndustrial Desin

●

4achinery ● =isual Art

● 4edical Desin



Computer aided architecture design

(CAAD)

● CAD can be used to desin a %D visual representative o$ a

structure such as a bride2 hihway2 drainae systems or

buildins such as houses2 hih rise $lats.

● he so$tware allows the user to desin a "D representation

o$ the blue prints. Also they can create a %D view o$ the

$inished desin o$ the structure.

● When incorporated with an e,pert system it can wor0 out

the strain points o$ the buildin>structure.



Designs of CAAD

House Blue

Print

Circuit

board layout



Eectronic design automation

(ECAD)

● CAD can also be used to desin electronic systems

such as printed circuit boards and interated circuits.

● As well as desinin the layout o$ a circuit the user can

also list loic ates $or the circuit.

● hese desins can be used $or hundreds o$ electronic

products and machinery.



http://www.youtube.com/watch?v=lN!"#$%!&#

http://www.youtube.com/watch?v=lNjX8gVAXzg

http://www.youtube.com/watch?v=lNjX8gVAXzg



Uses of CAD !ith an e"pert s#stem

● he limitations o$ CAD is that it doesn?t incorporate

real li$e concepts2 such as ravity or $riction.

● y &sin a e,pert system it can carry out calculations

such as stress o$ a buildin or the dra o$ a vehicle.

● he use o$ a e,pert system with CAD can be used

with a variety o$ products such as:

1. uildin materials $or buildins>constructions

". he Desin o$ vehicles.

%. Desin o$ individual parts.



CAD Design and $oft!are

o choose which so$tware to buy or download

depends on the user and what it is they want to

desin. @or e,ample below are three di$$erent

pictures all usin di$$erent so$tware $or di$$erentdesins.



$oft!are

Some CAD prorams which you can buy are:

– AutoCAD

– urboCAD

– roeCAD

ut there are a lot open source prorams such as:

– Archimedes

– @reeCAD

– 56;CAD



CAD % Data&ases

•ypically CAD so$tware is built upon some databasestored in hard dis0

•@rom user point o$ view it loo0s li0e a $ile

•However CAD obBects such as line or circle are stored

as structured records and CAD enine has implemented

methods $or $ast data retrieval and storae



CAD'CA Data&ase

Just li0e computer aided desinin (CAD) we have concepto$ computer aided manu$acturin (CA4). CAD so$tware

enables direct lin0 between CAD and CA4

#n its part CAD enables automation o$ desinin2 while

CA4 enables automation o$ manu$acturin processes. he

combination o$ CAD and CA4 enables automated

transition $rom desinin to manu$acturin

he database created by the interation o$ CAD>CA4is also called a manu$acturin database



Concusion

CAD is important in the desin and sa$ety o$

constructions

here are many di$$erent types o$ CAD so$tware to

choose $rom to meet speci$ic needs

CAD e,traction data is input into a database which

appears in the $orm o$ a $ile

<t has spread into many other $ields o$ Bobs more recently

such as medicine and electronics

CAD is overall a cheaper tool than ta0in on a larer

wor0$orce to complete drawin tas0s

cad systems for 27510 lecture (1)

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