ansys rotordynamics

7/24/2019 ANSYS Rotordynamics

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ANSYSRotordynamics


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Introduction

Benefits of Using ANSYS

Continual Enhancements

Analysis Types

Rotordynamics in ANSYS Wor!ench

Rotordynamics "ocumentation

Summary and #uestions

$utline


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%any industries use machines &ithrotating components

'o&er generation( transportation(electronics( chemical processing

Comprehensi)e design of rotatingcomponents( using high*fidelity tools(is essential to achie)e machinerelia!ility( sta!le range of operation(lo& noise at desired speeds and loads

etc+ Tur!omachinery( mi,ers( dis dri)es(

generators etc+

ANSYS has e,panded its rotordynamicscapa!ility to offer integrated solutions

to all such industries and machinetypes

Introduction


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Complete rotordynamicsanalysis &ith ANSYS(ena!led !y-+

CA" import and automatic

meshing .i!rary of elements

All analysis types /includingpre*stress0

"edicated post*processing

%ulti*spool dynamicssimulation

"irect connection to !earingcodes

Account for the fle,i!ility ofthe supporting structure

and1or the diss Connect directly to other

Benefits of Using ANSYS


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Continual Enhancements


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Release 34+4 Enhancements

New Features Coan!s

Act"#ate $%rosco&"c e''ect atso(#er (e#e(

C$RI$.IS

S&ec"'% rotat"ona( #e(oc"t% 'or 'u((o!e( an! co&onents

$%E5A

C%$%E5A

)e#e(o& Ca&*e(( !"a$ra'RCA%'

'.CA%'

Inc(u!e $%rosco&"c e''ect w"t+IN- an! ASS e(eents

%ASS63

BEA%377

BEA%378


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New Features Coan!s

Inc(u!e $%rosco&"c e''ect w"t+SI) e(eents

S$.I"379

S$.I"37:

S$.I"37;

er'or a +aron"c res&onseto s%nc+ronous an!as%nc+ronous ec"tat"ons

SYNC


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Release 36+4 Enhancements

New Features Coan!s

Inc(u!e $%rosco&"c e''ect w"t+S- e(eents

S


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Release 3>+4 Enhancements

New Features Coan!s

New A) at+ eten!s A)scr"&t"n$ ca&a*"("t"es

?EI5EN

)a&e! );,)Aetract"on et+o! su&&orte! "n)"str"*ute! ANSYS

%$"$'T(

"A%'


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Support in Wor!ench %echanicalfor

Camp!ell "iagrams

ull "amped( Reduced "amped sol)ers

Animation &ith "ecay

Rotational Delocity &ith Coriolis Effect

'ost*process %ulti*step modal analysis

Release 3=+4 Enhancements


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Analysis Types


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%odal Analysis

$r!it 'lot

Comple, reFuency

'rintout

Specify the rotational)elocity and acti)ate

the Coriolis effect

"eformed Shape

Animation


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%odal Analysis G Camp!ell"iagram

Set up a %ultiple

.oad Step %odal

Analysis

reFuencies * Whirls *Sta!ility

Critical Speeds

.ogarithmic

"ecrement


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0 0.5 1 1.5 2 2.5 3 3.5 4

0

1000

2000

3000

4000

5000

6000

7000

8000

9000

10000

Time (s)

Rotationalvelocity(rpm)

Transient Analysis 3

Start*up and Stop

Simulation

Transient Response

Specify the

Rotational Delocity)s+ Time


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Transient Analysis 6

Sta!ilityDerification

Transient $r!its

Specify a Short

"uration orce


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Rotordynamics in ANSYS Wor!ench


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Rotordynamics in ANSYSWor!ench

Bearings

Initial >"

geometry

inal a,isymmetric

model

%odel consists of Shaft

"is Bearings

Disk added


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Rotordynamics in ANSYSWor!ench'roHect )ie& in ANSYS

Wor!ench

Simulation process

5eometry

%esh

Simulation

"esign

E,ploration

Tools

'arameters

geometry

!earingstiffness


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%esh %odel

%esh

A,isymmetric

model &ith

!oundary

conditions

E,panded

)ie&


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Simulation Results

Camp!ell"iagram

Critical speeds

%ode )isualiation

/animation &ith

decay0


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"esign E,ploration

Input

parameters

)"s= ra!"us S+a't ra!"us

>ear"n$ st"''ness

$utput

parameters

Cr"t"ca( s&ee!s

Automated parametric

in)estigation

Sensiti)ity plots


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%ulti*o!Hecti)e $ptimiation

Specify JSee TargetK

for $ptimiation


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Rotordynamics "ocumentation


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Rotordynamics Analysis 5uide

Analysis 5uide

specific to

Rotordynamics


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Technology "emonstration5uide


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Summary

The pre)ious slides ha)e descri!ed the elements

of complete rotordynamics analysis( &ithANSYS

?e% ena*("n$ 'eatures@

CA) "&ort an! autoat"c es+"n$

"*rar% o' e(eents

A(( ana(%s"s t%&es "nc(u!"n$ &restress

)e!"cate! &ost&rocess"n$

u(t"s&oo( !%na"cs s"u(at"on

)"rect connect"on to *ear"n$ co!es

Account 'or t+e '(e"*"("t% o' t+esu&&ort"n$ structure an!/or t+e !"s=s

Connect !"rect(% to ot+er ANSYS too(s

#"a or=*enc+ )es"$nB&(orer ;+e resu(t@ Faster, ore co&(ete an! accurate ac+"ne ana(%s"s w"t+

ANSYS


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#uestionsL

ansys rotordynamics

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