Catia有限元分析步骤及分析实例.docx

Catia有限元分析步骤及分析实例
Catia—
Catia有限元分析步骤：1,准备分析的零件模型2,施加载荷与约束
3,
求解
4,
观察结果
5,
分析结果
6,
更改设计与重新求解7,重新分析结果

分析实例一虎钳螺杆结构分析1,准备分析的零件
打开装配文件 Drill_Press.CATProduct
T ea mPDM
Edit View
Insert T^0 &

[New...
New-fram.-r-：
Ctri+N

Open...
h
Ctrl+O

Close 临

H顎佗
■cirte

Sa怕一够..

Save；A:JI

鱼 mens/# G 憂匚會
理珏史

聲《 rg_J洲
画h/idly迎 •成冲郞
京件S 虺】 |Dt-ill_pres5
刘ysy
左键击操作Manipulation图标

在对话框中点选Y平移 选 With respect to constraints
^Cancel
raq alcrnq ¥ axis
■ Cancel

沿Y轴拖拽slidingjaw零件
显示装配结构已适当的约束
OK关闭对话框

Z]_si
Wilti reject 归 oxeir^hte
i=^ set tri g£trmlri世
在模型树展开screw零件

右键选Steel选Properties选Analysis查看材质的结构属性
OK关闭属性窗口

Ctrl+X
Ctrl+C
C1rl+V
Paste
Delete
Selection
Define Selection Set
Hid 財Shew
Center Graph
Reframe On
ess
screw
5teel
jawjslate (ww_plate.2)
retalrier_plate (retainer jjlate. 1.)
screws (screw^6.1)
Constraints
(screw.!)
handle
sliding
jaw j?l
jawj)l
retain
screw
screw
screw
Alt+Enter
Properties
screw
retain
Constr
5urface con tact. 30 (str ew#6 ■ 3 Jaw _plate. 2)
handle_asm (handle_asm .1)
base (base. 1) screw (screw. 1)
<ase (base.l)
sliding Jaw (slidingj-aw.l) jaw^plate (j^w^plate. 1)
•麻 Fiv x ess
screws (screw*6.2)
screw#6 (screw#6.3)
写crew#6 ($crew#6.4)
retainer_screw (retainer_screw.l)

Current 3e；ection ;
AFkS^SG J Dr^ftng |
萬 Rendarng | Jnher rtaruH | Feature FropertlES
Slrudural Prop hubs iQirg Modulusl^Oie+SfiTpci POlSSDri Ratlo|o.2fi6 Dert5ity|7Q60kg_ m3
Thermsl E^cars tin|Q：DODa 3 ■ iel^ mtrenqth| 弟 2S9,4 屯印

在主菜单选Edit选Links…
选 Pointed documents

base (base,l)
願「啟
酒四（so日心6月）
Fix-27 (baw. J)
Surface contact.2S (stJ
|li
?liding_^aw ^slicErig_iai/*.l) 闷艸(jaw.plaits. 1)
)Bw_plai8 (jaiAj_plrte>^)
jetd.<isrjzilate Retains!_pl
5trew#6 Csrreiwffe.l)
retaner_sciTBW (retainer,
handle_asna (h^rid Ie_a5«n. 1
V》- luhii_p「es号［内丨 prciumj
5crew#5 (scr 如 #6 总)
*「ev)融 ^crau-#6.3)
TedimEPM
InEPTt
Ctrl十 W
Cfrl+Y
胡I十.
Ctl+C
Ctrl+U
date
Ctrl-hF
Selection 5ets.
Representation
。iriclD 妃j Repeat
ComporisnE C DnstracitE
选 Screw.CATPart 点选 Open 打开

简化零件模型右键在模型树选CircPattern.1选CircPattern.1 object选
Deactivate
DEfri5 ]n Wark Gbjert
Ctrl+X
%1+H
EI+*'
Paste RjHiziF,.,
Pocket, 1
chamfer. 1
Sot. 4
R^FPP.^rtRrn
Sketch.
RectPattern. 1
Sketch A
LQordar

对CircPattern.2重复以上步骤
C&nter Graph
Deg Di 册object
CtrHX
Ctrl+C
CtrH-'v
J涉［H写
Refr^me on
Pargni/Children...
rropct
Hdix.l
_ocal upaj-ts
ctY-atE die寻洛匕匚
口毛曰 E PiapertiK
Defmtian..
□d-t ParametE?s
BdLtSlOt.4
Explode, .i
Reorder...

在主菜单选 Start 选 Analysis & Simulation 选 Generative Structural
Analysis
在 New Analysis Case 窗口选 Static Analysis
OK

□ Keep as default starting analysis Cdse
New Analysis Case
Static Analvsjs
Frequency Analysis Free Frequency-Ana lysis
Slew Analvsi
Static: Analysis
Frequency Analysi Free Frequenc-y' Ana [ysls
□ Keep as default startinq analysis
1 Cancel Help
2,施加载荷与约束

选Clamp图标
如图选螺杆末端螺纹表面OK

选Force图标
如图选螺杆端面
在X框键入950lbf
在Y框键入-50lbf
OK

3,求解
选Elfini Storage Location图标用Modify定义结果存储路径

选Compute图标
选 Preview

OK
review
^CancelJ
W Cancel I
Preview
ComputE
Compute
Compute

几秒后出现估算时间的窗口
点选Yes求解计算
Computation Estirn
4,观察结果
pioi of CPU
375 kila-byte^of memory.
318 kilo-bytes.of disk
Warning: Runriing computation witkioutIntel MKL(t) Running with M1<LibrwouId decrease C1PU-T
Do you want tn continue the computation?

I LJLJI-D
n&rative Part Str

点选 visualisation 图标的黑箭头选 Applies customized view parameters 图标
1—5
nah/sipl yCATAn
'sisComputations
ri^ly s is\D3t3\ scre^ ■ C ATP.
Ap plies'tijstD mized/view p ara metE.rs
在窗口选取Materials
OK
Custom View Mode
Edges _points
Shading
□ Outlines；'
□ Hidden edge^ .points
Dynamic hidden line rennoval
<JMater ialsl'
□ Facet
□ isoparametri 匚£
。OK. 1 J Cancel I
Custom V;ew M（；d
Ed gea^-.points
Shading
口 Outlines
□ Hidden 巳 .points
□ Dynamic hidden line removal
Materials' \
口 Facet
□ Isopara metrics

■3 Cancel
HH
点选Von Mises图标

在模型树右键选 Nodes 和 Elements and Properties 选 Properties 选

Hide/Show 隐藏
Analysis Manager
Linki MjcageK
i-lnte Element Mocfel
Loads.
Hide/Show
Ctrl+C
rrlW
■aste
A It+Enter
■wid m- i- 匚即切M呼h
Enframe On
在有限单元上移动鼠标观察各节点的结果数值

如图双击颜色板键入20替代10
OK修改结果显示效果

psi
3.17e+00' 2.85e+0( 2,54e+0( 球以左十(X l.Se+OO 1.58e+0C 办+0
9.51e+0
6\ 34^+0
3.17e+0
0
On Boundary-'
□ I mposed Min
More»
• Cancel
Color Map Editor
Color Map Edi tor
saiiasniissiviii
On Boundary
j On Boundary
Number of Colors
亨 mriBl
Number of Colors 20
□ imposed Min
口 I mposed Max
31699,1
□ Imposed M?览
More» I
31699.1
5,分析结果
点选Cut Plane图标
在主菜单视图选右视图如图
Pl日ne%~i曰曉格L

!\catia-5j\Anal'
sjlGenerative P
i-sj\Analysisl.

■sisResults.
TAnalyeiEComputation
tural Analy£is\Data\s：;

t5
Rightview

如图选孤线旋转切削面

不选 Show Cutting Plane 在横切面移动鼠标观察各节点的结果数值

CLOSE
「I中部□Jttnq伯冴
? X
9.51S+0
i4e+0
点选Search Image Extrema图标如图设置
Close

Global
Minimum extrema at mos.t i
Maximum extrema at most i
□ Local
Minimum ewtrema at most o
extrema at most 2
OK显示最大和最小值
lage Extre Search Innage Extremal

点选 Deformation Scale Factor 图标
增大变形比例数
Default Coeffi匚im「it
J-Laneel I
Magnifi caticn
None
De忙irm日d Qu日ffiizi巳地
1%：迎&
Maximum Displacement
|0.862349~
三匸 Defarmation S匸alm FmdD「|
Deform Window
一 |口成|

Deform Window
Magnification :
None Max
' b
gibrm巳d C□巳ffkimrit ;
80.5617 D efau It Eoeffic i ent J

viaximum Displacement :
点选Animate图标察看变形动画演示，适当调整速度
CLOSE

点选Deformation图标察看变形网格图

e+00
e+00
e+00 e+CO e+00- e+00： s+00. e+00: e+00：
6,更改设计与重新求解
从分析结果发现最大应力大于材料屈服强度，需修改设计
在模型树双击screw进入设计模式
Analysis Manager
Link5 Manager
Lirc.Haliern.Z
::Relations
*—Form
* PartBudy
LM5hdft. 1
--RectPattern. 1
4 口 Pocket. 1
Chamfer. 1
5lot.2
CircPattern.l

双击sketch.3修改尺寸如图
退出
zx plane
bi Parameters
ations
Formula. 1: PartBody\RectPattern. i\NumberI & PartBody
i Shaft. 1
p :L
Pocket. 1
Sketch.3
Chamfer, 1
^lot.2
lot.4
Pattern. 1
Qps_body.I

[UPLOAD=gif]

Constraint Defjniliofi
国口
MGre>>
；
I ■
■ I i，” i I ■ I jj qjri ■ ■J|.|.i 11 I ■ . J □ ] ■ in ■■ i.Li
Exit workben ch
I a
deg/Park

在模型树双击Finite Element Model
点选Compute图标计算
Preview
I nJ 2d
G kOK J Cancel 一椎J 宀‘皿
Compute
Jnl>d

Computation Reseu「c：eg E&tim....：

537 kilo-bites' of memory='
481 kilo-b/tss of disk
Warning; Running compiitation withoutIntsl Running 州tti Library/would decrease CPU-T
Do you want to continue the computation?

点选Von Mises图标察看结果
sss Von Mises

点选 Search Image Extrema 图标

OK显示最大和最小值
Maximum extrema at most i
□Locai
|n|x|
5 Global
Minimum e.stt'ema at most i
Minimum axtrema at most i
Maximum extrema at most ]_
$ 繹］由匚日门匚巳11
4 £談廿「SEarizh Inring巳 Ejttr巳m日
Extrema Creatior