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ANSYS Basics

Module 3

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Training Manual ANSYS Basics

In this chapter, we will discuss the basics of how to enter andexit ANSYS, how to use the GUI and on-line help, and thedatabase and files created b ANSYS!

"opics #o$ered%A! Startin& ANSYS

B! "he GUI

#! Graphics ' (ic)in&

*! +n- ine elp

.! "he *atabase and /iles

/! .xitin& ANSYS

G! 0or)shop

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A. Starting ANSYS

"here are two wa s to start ANSYS% B auncher

B #o11and ine

auncher

Allows ou to start ANSYS and otherANSYS utilities b pressin& buttonson a 1enu!

+n Unix s ste1s, issue xansys57 & tobrin& up the launcher!

+n 0indows s ste1s, press Start >Programs > ANSYS 5.7 !

Unixlauncher

0indowslauncher

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...Starting ANSYS

auncher 2cont d4

Auto1aticall brin&s up the GUI 2Graphical User Interface4 when ANSYS isstarted in interacti$e 1ode!

A note on Interacti$e $s! Batch 1ode%

Interacti$e 1ode allows ou to interact 5li$e6 withANSYS, re$iewin& each operation as ou &o!

Batch 1ode wor)s on an input file of co11andsand allows ou to run ANSYS in the bac)&round!

No li$e interaction, therefore an errors ininput will cause the batch run to stop!

Best suited for operations that don t need user

interaction, such as a sol$e! 0e will 1ainl co$er interacti$e 1ode in this

course!

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...Starting ANSYS

auncher 2cont d4

(ressin& the Interactive button on thelauncher brin&s up a dialo& boxcontainin& start-up options% ANSYS product

0or)in& director - the director inwhich all files will be stored! Graphics de$ice - set to 3-* if ou

ha$e a 3-* &raphics de$ice card!+therwise, set to 788 on Unix, win39on 0indows!

:obna1e - file na1e prefix, up to 39characters, assi&ned to all filesproduced b this session! *efaults to5file6 or last specified na1e!

A1ount of 1e1or - default $aluesshould suffice in 1ost cases!

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...Starting ANSYS

auncher 2cont d4 After choosin& the desired start-up options, press the ;un

button to start ANSYS!

#o11and ine

ANSYS is started b t pin& a co11and at the s ste1 le$el!/or exa1ple% ans s

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...Starting ANSYS

#o11and ine 2cont d4 " pical start-up options, co11onl )nown as command line

options, are%

-& 2to auto1aticall brin& up the GUI upon start-up4

-p product_code

-d graphics_device

-> jobname

-1 memory

"he wor)in& director is the director in which the co11andis issued!

;efer to our ANSYS Installation and Con iguration !uide fordetails on the co11and line options!

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.nterin& ANSYS brin&s up the followin& GUI windows%

Input*ispla s pro&ra1pro1pt 1essa&esand a text field fort pin& co11ands! Allpre$iousl t pedco11ands appear foreas reference andaccess!

Main Menu#ontains the pri1arANSYS functions,or&ani@ed bprocessors2preprocessor,solution, &eneralpostprocessor, etc!4

+utput*ispla s text outputfro1 the pro&ra1! Itis usuall positionedbehind the otherwindows and can beraised to the frontwhen necessar !

Utilit Menu#ontains functionswhich are a$ailablethrou&hout theANSYS session, suchas file controls,selectin&, &raphicscontrols, para1eters,and exitin&!

"oolbar #ontains pushbuttons for executin&co11onl usedANSYS co11andsand functions!#usto1i@ed buttonscan be created!

Graphics*ispla s &raphicscreated in ANSYS ori1ported into ANSYS!

ANSYS Basics

B. "he !#I

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Main Menu #ontains the 1ain functions re uired for an

anal sis!

Independent, 5stic) 6 windows allow ou to

co1plete all necessar steps before 1o$in& on tothe next function!

#on$entions% indicates a dialo& box

C indicates &raphical pic)in&

D indicates a sub1enu

2blan)4 indicates an action

ANSYS Basics

..."he !#I

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..."he !#I

Utilit Menu #ontains utilities that are &enerall a$ailable throu&hout the

ANSYS session% &raphics, on-line help, select lo&ic, filecontrols, etc!

Sa1e con$entions as Main Menu% indicates a dialo& box

C indicates &raphical pic)in&

D indicates a sub1enu

2blan)4 indicates an action

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..."he !#I

Input 0indow Allows ou to enter co11ands! 2Most GUI functions actuall

5send6 co11ands to ANSYS! If ou )now these co11ands,ou can t pe the1 in the Input 0indow!4

Also used for pro1pts durin& &raphical pic)in&!

#o11and S ntax

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..."he !#I

"oolbar #ontains abbreviations -- short-cuts to co11onl used

co11ands and functions!

A few predefined abbre$iations are a$ailable, but ou can add

our own! ;e uires )nowled&e of ANSYS co11ands! A powerful feature which ou can use to create our own

5button 1enu6 s ste1E

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..."he !#I

a out "hree predefined 1enu la outs are a$ailable

2La nc!er > Interactive > "#I $on%ig ration 4% Input window on left 2default4

Input window on ri&ht

Input window on botto1

You can also create our own la out and thensa$e it usin& #ti ity 'en > 'en $tr s > Save'en Layo t. Unix s ste1s store the la out in an AS#II resource

file called ANSYS57 , located in ()*'+ !

0indows s ste1s store the la out in the s ste1re&istr !

In, t

In, t

In, t

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..."he !#I

(references

"he (references dialo& 2 Main Menu D(references 4 allows ou to filter out1enu choices that are not applicableto the current anal sis!

/or exa1ple, if ou are doin& ather1al anal sis, ou can choose tofilter out other disciplines, therebreducin& the nu1ber of 1enu ite1sa$ailable in the GUI% +nl ther1al ele1ent t pes will be

shown in the ele1ent t pe selectiondialo&!

+nl ther1al loads will be shown!

.tc!

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..."he !#I

+ther GUI Notes So1e dialo& boxes ha$e both Appl and +F buttons!

Appl applies the dialo& settin&s, but retains 2does not close4the dialo& box for repeated use!

+F applies the dialo& settin&s and closes the dialo& box!

"he +utput 0indow is independent of the ANSYS 1enus!Caution$ Closing the output %indo% closes the entire ANSYSsession&

;e1e1ber that ou are not restricted to usin& the 1enus! Ifou )now the co11and, feel free to enter it in the Input0indowE

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C. !raphics / -ic0ing

"he 1ost hea$il used interacti$ecapabilities are &raphics and &raphicalpic)in&! Graphics is used to $isuali@e the 1odel,

loadin&, results, and other input andoutput data!

(ic)in& is used for 1odel creation,1eshin&, loadin&, etc!

Use P ot in the Utilit 1enu to produceplots, or issue the co11ands shown!

-re, ot, ot, ot

a, otv, otn, ote, otg, ot

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...!raphics / -ic0ing

"he P ot$tr s 1enu is used to controlhow the plot is displa ed% plot orientation

@oo1

colors

s 1bols

annotation

ani1ation

etc!

A1on& these, chan&in& the plotorientation 2 vie% 1 and @oo1in& are the1ost co11onl used functions!

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"he default $iew for a 1odel is the front$iew% loo)in& down the C axis of the1odel!

"o chan&e it, use d na1ic 1ode H a wa toorient the plot d na1icall usin& the#ontrol )e and 1ouse buttons! #trl C eft 1ouse button pans the 1odel!

#trl C Middle 1ouse button%@oo1s the 1odel

spins the 1odel 2about screen 4

#trl C ;i&ht 1ouse button rotates the 1odel%about screen 7

about screen Y

(

;

$tr

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If ou don t want to hold down the#ontrol )e , ou can use the * na1icMode settin& in the Pan/0oom/1otate dialo& box! "he sa1e 1ouse button assi&n1ents

appl !

+n 3-* &raphics de$ices, ou can alsod na1icall orient the li&ht source!Useful for different li&ht sourceshadin& effects!

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+ther functions in the (an-oo1-;otate dialo& box% (reset $iews

oo1-in on specific re&ionsof the 1odel

(an, @oo1, or rotate indiscrete incre1ents 2asspecified b the ;ate slider4

;otation is about thescreen 7, Y, coordinates!

/it the plot to the window

;eset e$er thin& to default

2ront 30 vie4 %rom 6 89:ac /0 vie4 6 /89;o, 3Y vie4 6 8 9:ot /Y vie4 6 /8 91ig!t 3< vie4 68 9Le%t /< vie4 6/8 9Iso Isometric 68 8 89*= i *= i e 68 ? @9

P or ing , ane vie4

0oom :y ,ic ing center o% as are

:ox 0oom :y ,ic ing t4o cornerso% a =ox

in 0oom Same as :ox 0oom= t =ox is ,ro,ortionato 4inBo4.

:ac #, #nCoom to ,revio sCoom.

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(ic)in&

(ic)in& allows ou to identif 1odelentities or locations b clic)in& in theGraphics 0indow!

A pic)in& operation t picall in$ol$es theuse of the 1ouse and a pic0er 1enu! It isindicated b a C si&n on the 1enu!

/or exa1ple, ou can create )e points bpic)in& locations in the Graphics

0indow and then pressin& +F in thepic)er!

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"wo t pes of pic)in&%

;etrie$al pic)in& (ic)in& existin& entities for a

subse uent operation!

Allows ou to enter entitnu1bers in the Input 0indow!

Use the -ic0 All button toindicate all entities!

ocational pic)in&

ocatin& coordinates of a point,such as a )e point or node!

Allows ou to enter coordinatesin the Input 0indow!

.xa1ple of ;etrie$al (ic)er

.xa1ple of ocational (ic)er

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Mouse button assi&n1ents for pic)in&%

eft 1ouse button pic)s 2or unpic)s4the entit or location closest to the1ouse pointer! (ressin& and dra&&in&allows ou to 5pre$iew6 the ite1 bein&

pic)ed 2or unpic)ed4! Middle 1ouse button does an Appl !

Sa$es the ti1e re uired to 1o$e the1ouse o$er to the (ic)er and press theAppl button! Use Shift-;i&ht button ona two-button 1ouse!

;i&ht 1ouse button to&&les betweenpic) and unpic) 1ode!

(ic)

Appl

"o&&le (ic) Unpic)

#n,icPic

#ursor displa %

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otspot locations for pic)in&%

Areas and Jolu1es ha$e one hotspot near the centroid ofthe solid 1odel entit !

ines ha$e three hotspots - one in the 1iddle and one neareach end!

0h this is i1portant% 0hen ou are re uired to 5pic)6 anentit , ou 1ust pic) on the hotspot!

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'emo$ Sho% locational pic0ing by creating a e% 0eypoints. Also sho%

the use o middle and right mouse buttons.

Sho% retrieval pic0ing by creating a e% lines

Sho% (2oop* by creating an A2 area

Sho% (-ic0 All* by deleting area only

'o )-2 ", 2-2 ", etc. %ith and %ithout numbering. "ype in ae% o these commands.

Sho% the use o pan34oom3rotate

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'. n32ine 5elp

ANSYS uses an "M -based docu1entation s ste1 topro$ide extensi$e on-line help!

You can &et help on% ANSYS co11ands

ele1ent t pes

anal sis procedures

special GUI 5wid&ets6 such as (an- oo1-;otate

You can also access%

"utorials Jerification 1odels

"he ANSYS web site

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... n32ine 5elp

"here are se$eral wa s to start the help s ste1% auncher D elp S ste1

Utilit Menu D elp D elp "opics

Any dialog bo+ D elp

" pe . (, name in the Input 0indow! Name is a co11and orele1ent na1e!

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... n32ine 5elp

(ressin& the elp S ste1 button on the launcher brin&s up a help browserwith% a navigational window containin& "able of #ontents, Index, a Search Utilit , and a

/a$orites "ab

a document window containin& the help infor1ation!

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... n32ine 5elp

ANSYS also pro$idesan "M -based on-line tutorial!

"he tutorial consistsof detailedinstructions for a setof proble1s sol$ed inANSYS!

"o access the tutorial,clic) on Utilit Menu Delp D ANSYS"utorials !

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... n32ine 5elp

'emo$ 2aunch the help system rom the launcher

Bring up an Analysis !uide

"ype (help,0plot* in the Input %indo%

Search or the string (harmonic response*

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. "he 'atabase / 6iles

"he ter1 ANSYS database refers to the data ANSYS1aintains in 1e1or as ou build, sol$e, and postprocessour 1odel!

"he database stores both our input data and ANSYS resultsdata%

Input data -- infor1ation ou 1ust enter, such as 1odeldi1ensions, 1aterial properties, and load data!

;esults data -- uantities that ANSYS calculates, such asdisplace1ents, stresses, strains, and reaction forces!

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..."he 'atabase / 6iles

Sa$e and ;esu1e

Since the database is stored in the co1puter s 1e1or2;AM4, it is &ood practice to save it to dis) fre uentl so thatou can restore the infor1ation in the e$ent of a co1putercrash or power failure!

"he SAJ. operation copies the database fro1 1e1or to afile called the database ile 2or db ile for short4! "he easiest wa to do a sa$e is to clic) on "oolbar D SAJ.K*B

+r use%

Utilit Menu D /ile D Sa$e as :obna1e!db Utilit Menu D /ile D Sa$e as SAJ. co11and

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"o restore the database fro1 the db file bac) into 1e1or ,use the ;.SUM. operation! "oolbar D ;.SUM.K*B

+r use% Utilit Menu D /ile D ;esu1e :obna1e!db

Utilit Menu D /ile D ;esu1e fro1 ;.SUM. co11and

"he default file na1e for SAJ. and ;.SUM. is jobname !db , but ou can choose a different na1e b usin& the 5Sa$e as6

or 5;esu1e fro16 functions!

ANSYS Basics


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Notes on SAJ. and ;.SUM.% #hoosin& the 5 Save as* or 5 7esume rom* function does N+"

chan&e the current >obna1e!

If ou sa$e to the default file na1e and a jobname.db alreadexists, ANSYS will first cop the 5old6 file to jobname.dbb as abac)-up!

"he db file is si1pl a 5snapshot6 of what is in 1e1or at theti1e the sa$e is done!

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"ips on SAJ. and ;.SUM.% (eriodicall sa$e the database as ou pro&ress throu&h an

anal sis! ANSYS does N+" do auto1atic sa$es!

You should definitel SAJ. the database before atte1ptin& anunfa1iliar operation 2such as a Boolean or 1eshin&4 or anoperation that 1a cause 1a>or chan&es 2such as a delete4!

;.SUM. can then be used as an 5undo6 if ou don t li)e theresults of that operation!

SAJ. is also reco11ended before doin& a sol$e!

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#learin& the *atabase

"he #lear *atabase operation allowsou to 5@ero out6 the database andstart fresh! It is si1ilar to exitin&and re-enterin& ANSYS!

Utilit Menu D /ile D #lear ' StartNew

+r use the # .A; co11and!

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" pical files% jobname !lo&% o& file, AS#II!

#ontains a lo& of e$er co11and issued durin& the session! If ou start a second session with the sa1e >obna1e in the

sa1e wor)in& director , ANSYS will append to the pre$iouslo& file 2with a ti1e sta1p4!

jobname !err% .rror file, AS#II! #ontains all errors and warnin&s encountered durin& the

session! ANSYS will also append to an existin& error file!

jobname !db, !dbb% *atabase file, binar !

#o1patible across all supported platfor1s! jobname !rst, !rth, !r1&, !rfl% ;esults files, binar !

#ontains results data calculated b ANSYS durin& solution! #o1patible across all supported platfor1s!

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6. +iting ANSYS

"hree wa s to exit ANSYS% "oolbar D UI"

Utilit Menu D /ile D .xit

Use the .7I" co11and in the Input 0indow

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