ansysworkbench疲勞分析實(shí)例

1、ANSYS作業(yè)A12疲勞ANSY；培訓(xùn)手冊(cè)Shape Finder作業(yè)A12-目標(biāo)冃標(biāo)：-目標(biāo)在于完成一個(gè)連桿模型的疲勞分析(ConRod.xJ).具體地，我們將分析兩個(gè) 載荷環(huán)境(environments): 1) 4500 N的恒定振幅載荷 Fully Reversed ;2) 4500N的任意載荷.February 2 2004Inventory HW)201082February 2 2004Inventory HW)201082February 2 2004Inventory HW)201082Shape Finder作業(yè)A12 -起始頁(yè)從發(fā)射臺(tái)進(jìn)入DS選擇“Geometry >

2、; From File“打開文 件“ConRodx_t"慾Point卜AWSY：培訓(xùn)手冊(cè)O(shè)utlineEj ol Environment當(dāng)DS啟動(dòng)后，點(diǎn)擊右上角X5關(guān)閉向?qū)Р?單.SmUabon WizardRequired StepsClick each task below for informabon.Choose Wizard公 AMYS WoHcbench (AN5YS MukiphytKtStress SimulationDetermine safor勺 mation for a assembly under ructural loading.stresses0 Link

3、 to Geometry Verify Materidl Insert Loads/ Insert Supports / Insert Results SolveViewReiiilKFebruary 3, 2004Inventory »00201083ANSYJ培訓(xùn)手冊(cè)Shape Finder作業(yè)M2 過程February 2, 2004Inventory M020108,February 2, 2004Inventory M020108,改變單位為公制metric (m, kg, Pa).1. “Units > Metric (m, kg, Pa5 C, s)“I jCHJ

4、o% Took Help 劇 0 $ 7 Metnc (m, kg, Pa# °C, s)Metnc(5b g, dyne/cm'疋fs)Metnc (mm, kg, MPa, K, $)U.S. Customary (ft, txn, psf/ °F, s)U.S. Customary (m torn,網(wǎng) 吧 s)February 2, 2004Inventory M020108,February 2, 2004Inventory M020108,GISFebruary 2, 2004Inventory M020108,確認(rèn)材料設(shè)置為結(jié)構(gòu)鋼"Struct

5、ural Steell2.在geometry 欄點(diǎn)擊“Part 1 "3如果不是，那么點(diǎn)擊“Material”并“browse”.February 2, 2004Inventory M020108,February 2, 2004Inventory M020108,立I Project 魚 ModelEnvironment7j Solution2.Det刖s of Tart 廣February 2, 2004Inventory M020108,Shape Finder4憐我".siruaura 廠 SieeU 曲總務(wù)訕=Dra【open】.OpenLook 3 - a Ma

6、tenak 匕 f 0 冒.AhJmmumlAloy.xml 匹 QLkml Concrete .xmi 一al»r 只 ©ls”eelxm-TjtanfumlAHOyxml匕'L£copperlABOyxml'Gray'nastton. xml biMagne$iumlA10y xml llipdyethyt * xmlFilenamearsMBF1aF<fts 2 type - Engineering Files r.xmo2JIXAWSYssBOJ) ?7刀勸閃二帀刁$乂閃八February 2 2004 mvenory

7、67;2070 85AWSYS培訓(xùn)手冊(cè)Shape Finder作業(yè)14-過程February 2, 2004Inventory M0201086AWSYS培訓(xùn)手冊(cè)Shape Finder作業(yè)14-過程施加如下邊界條件（看下頁(yè)）:February 2, 2004Inventory M0201087Shape Finder作業(yè)A12-過程5.點(diǎn)擊環(huán)境Environment欄.6.點(diǎn)擊連桿表面顯示7.插入一個(gè)力載荷.一 “RMB > Insert > Force，'8.6.8.ANSYJ培訓(xùn)手冊(cè)?lBSEESSSQBl Project 殳 ModelOGeometry“色 Par

8、t 1從detail窗 口改成“Components"并使 “Z = 4500 Nt0 Structural Thermal Acceterabon& Standard Earth GravityRotational VelocityPressure也 ForceRemote ForceBolt LoadPretension 6olt LoadMomentDetafc of TorceHScopeGeometry1 FaceDefinitionTime TypeStaticDefine ByComponentsX Component0. NY Component0. NZ C

9、omponent4500.NSuppressed75Outine5.7.February 2、2004Inventory 機(jī)）0201089ANSYS培訓(xùn)手冊(cè)Shape Finder. 作業(yè)M2-過程9. 點(diǎn)擊環(huán)境欄Environment.10. 點(diǎn)擊連桿表面顯示11插入一個(gè)圓柱殼支撐.- “RMB > Insert > Cylindrical Support”>10.9.曰用sgsmnOdUine女 Prefect 金| ModelE)Geometry 從Details of “Cylindrical Support"窗口:12.設(shè)置 Radial才Fixed”,

10、 AxialM'Free", Tangential=gTreen12.Detafc of "Cylindrical Support"曰 ScopeGeometry 2 Fac« 曰 DefinitionTime Type StaticTypeRadlAxidCyindrical SupportTdngentidl 探巒二I11.February 2、2004Inventory ff002010811ANSYS培訓(xùn)手冊(cè)Shape Finder作業(yè)A12-過程February 2, 2004Inventory M02010812ANSYS培訓(xùn)手冊(cè)Sh

11、ape Finder作業(yè)A12-過程13.點(diǎn)擊環(huán)境欄Enviro nment.14 點(diǎn)擊連桿表面顯示14.Outlne石| Project 金 Model3 Geometry15插入一個(gè)固定支撐.- “RMB > Insert > Fixed Support”February 2, 2004Inventory M02010813ANSYS培訓(xùn)手冊(cè)Shape Finder作業(yè)A12-求解設(shè)置向solution（求解）添加結(jié)果:16點(diǎn)擊 solution 欄.OutfineQ Project 金 ModelE) 丁 Geometry MeshS & 劇 EnvironmentF

12、orce&暫 Cybndrical Support16.17.RMB > Insert > Stress > Equivalent (von Mises).17.18.RMB > Insert > Deformation > Total.1 8.February 2, 2004Inventory »0020108-15ANSYS培訓(xùn)手冊(cè)Shape Finder作業(yè)A12-求解設(shè)置February 2, 2004Inventory »0020108-16ANSYS培訓(xùn)手冊(cè)Shape Finder作業(yè)A12-求解設(shè)置插入fatigue

13、 tool:19點(diǎn)擊 solution 欄.OuttneBJ Project金Model3Geometry Mesh3Environment產(chǎn).Force &勺 Cykndncal Support_W kwv&ent boess& Total Deformation19.20.RMB > Insert > Fatigue > Fatigue Tool.20.February 2, 2004Inventory »0020108-17Shape Finder作業(yè)A12 -求解設(shè)置ANSY§培訓(xùn)手冊(cè)February 2, 2004Inve

14、ntory M02010818Shape Finder作業(yè)A12 -求解設(shè)置February 2, 2004Inventory M020108#Shape Finder作業(yè)A12 -求解設(shè)置 從 Details of “Fatigue Toor5 窗口:21 定義疲勞強(qiáng)度因子(Fatigue Strength Factor) (Kf)為0 .8 (描述的材料數(shù)據(jù)表示光滑試件和在 役構(gòu)件).22定義對(duì)稱循環(huán)載荷(fully reversed loading)以廠 建立交互應(yīng)力循環(huán).2223.定義應(yīng)力壽命疲勞分析(由于是全反載荷(fully reversed loading)而兔是平均應(yīng)力，所攻不

15、需23- 要平均應(yīng)力理論).24.24定義Von Mises應(yīng)力以便和疲勞材料數(shù)據(jù)比較.February 2, 2004Inventory M020108#AWSYS培訓(xùn)手冊(cè)Shape Finder作業(yè)A12 -求解設(shè)置向Fatigue Tool添加結(jié)果：25插入"Safety Facto口安全系數(shù)）：一 RMB > Insert > Fatigue > Safety Factor.粉 Equr/alent Stress ® Total DefamationEngineering Data南 Structural SteelInsertFatigue-0.

16、50/ SdveA CommentDupkateSafety Fdctor25.February 2, 2004Inventory »0020108-19AWSYS培訓(xùn)手冊(cè)February 2, 2004Inventory »0020108-#AWSYS培訓(xùn)手冊(cè)從 Details of “Safety Factor” 窗口:26設(shè)置設(shè)計(jì)壽命Design Life為1e6循環(huán)次數(shù).February 2, 2004Inventory »0020108-#AWSYS培訓(xùn)手冊(cè)February 2, 2004Inventory »0020108-#AWSYS培訓(xùn)手

17、冊(cè)Detafc of "Safety Factor"February 2, 2004Inventory »0020108-20ANSYS培訓(xùn)手冊(cè)Shape Finder作業(yè)A12 -求解設(shè)置February 2, 2004Inventory tf0020108-21ANSYS培訓(xùn)手冊(cè)Shape Finder作業(yè)A12 -求解設(shè)置向Fatigue Tool添加結(jié)果（續(xù)）:27插入 “Fatigue Sensitivity"疲勞敏感性）:- RMB > Insert > Fatigue > Fatigue Sen sitivityFll匚I

18、'八I謝鐮總 | / / iQneenngData $ Structural Sledy SoJve爭(zhēng) Duplicate 電）CopyX Cut0 OwnA CommentQ DamageQ Safety Factor© Biaxialty IndkationO Equrvderit Alt er not mg SUe,s 冬 Ratfiflow Matrix 姿 Damage MatrixX DeleteA|2patigue SenRvity27.從 Details of “Fatigue Sensitivity55 窗口:28定義一個(gè)最小基本載荷變化幅度為50% （-

19、28. 個(gè)2250N的交互應(yīng)力）和一個(gè)最大基本載荷 變化幅度為200% （一個(gè)9000N的交互應(yīng)力）.Detais of "Fatigue Sensitivity"3 ScopeGeometryAll Bodes3 DefinitionSensitivity ForLfe3 OpttonsLower VariationnNumberof Fl Pants25Chart?lewing StyleLinear.Upper VarZonFebruary 2, 2004Inventory tf0020108-22Shape Finder作業(yè)A12-結(jié)果I際立rsd -HFatigu

20、eI毀Ufa£ F也 y SolvengineerngDataA Comment製 Damage 0 Safety FactorJ3 Structural Steel脅 Duplicate尙 CopyIBiaxiality Irxfcation® Equivalent Alternating Stress29.向Fatigue Tool添加結(jié)果（續(xù)）:29插入 “Biaxiality Indication":一 RMB > Insert > Fatigue > Biaxiality Indication Solve（求解）ANSY：培訓(xùn)于冊(cè)查看結(jié)

21、果 點(diǎn)擊并畫出總體變形“Total DeformatiorT.Total DeformationTotal DefofmationXIMmFebruary 2. 2004Inventory »002010824Shape Finder作業(yè)A12-結(jié)果February 2. 2004Inventory »0020108#Shape Finder作業(yè)A12-結(jié)果0 15?012100910 061003000000 0000 0340 0680 102 (m)I1 I I TFebruary 2. 2004Inventory »002010825ANSYS培訓(xùn)手冊(cè)Sh

22、ape Finder作業(yè)A12結(jié)果February 2 2004Inventory M020108-26ANSYS培訓(xùn)手冊(cè)Shape Finder作業(yè)A12結(jié)果點(diǎn)擊并畫出等效應(yīng)力結(jié)果Equivalent Stress” .3B41637tQutvdlent Stress0 0340102(m)StressX1e7PaFebruary 2 2004Inventory M020108-27Shape Finder作業(yè)M2 -結(jié)果AWSY培訓(xùn)于冊(cè)Safety Factor15 000io(xn0 102(m)Safety FactorIS4、點(diǎn)擊并畫出對(duì)于設(shè)計(jì)壽命為1e6的循環(huán)次數(shù)的安全系數(shù)&quo

23、t;Safety Factor".February 2, 2004Inventory M020108-28Shape Finder作業(yè)M2 -結(jié)果ANSY5培訓(xùn)手冊(cè)點(diǎn)擊并畫出關(guān)于一個(gè)最小基本載荷變化幅度為50%和一個(gè)最大基本載荷變 化幅度為200%的疲勞敏感性結(jié)果"Fatigue Sensitivity”.Fatigue SensitivityrLMnil尸F(xiàn)ebruary 2, 2004Inventory M020108-29Shape Finder作業(yè)M2 -結(jié)果ANSYS培訓(xùn)于冊(cè)I找出最大基本載荷變化幅度為400%的百年化壽命的敏感性，注意，必須重新 計(jì)算以得到新的敏

24、感性結(jié)果.Fatigue Sensitivity衛(wèi)GISGFebruary 2、2004Inventory W02010830Shape Finder/VN作業(yè)A12-結(jié)果培訓(xùn)手冊(cè)點(diǎn)擊并畫出雙軸指示結(jié)果“Biaxiality Indication”.注意，接近危險(xiǎn)區(qū)域的；、應(yīng)力狀態(tài)接近單軸的(12)，因?yàn)椴寞偺匦允菃屋S的回想，一個(gè)0 biaxiality,>與單軸應(yīng)力一致;為1時(shí)，為純剪切;為1時(shí)為純雙軸狀態(tài).Shape Finder作業(yè)A12 -求解設(shè)置ANSY：培訓(xùn)手冊(cè)插入第二個(gè)fatigue tool以分析4500N的任意載荷.假設(shè)我們具有從構(gòu)件 試驗(yàn)獲得的應(yīng)變?cè)u(píng)估結(jié)果，并且知道平

25、谷結(jié)果中的200與施加的4500N的載 荷想對(duì)應(yīng)：Outline for "ConRod"30. Highlight the solution branch.February 2, 2004Inventory »002010&22Shape Finder作業(yè)A12 -求解設(shè)置30.31.RMB > Insert > Fatigue > Fatigue Tool.InsertCursor ModeViews題FtStress Tool1 WBBStressStrain»DeformationJrI ContactThermalj

26、1| Fabg*pS FatiQue Tooltar31.女 Project魚 Model® Geometry學(xué) Mesh© frwir(mnwnt儀 Force&愆 Cyfcndrkol Support曰箱羈遐zWTq5valent Stress Total Deformatton Fdbgue Tool & Safety Factor Biaxiaky Indention FatiQue Sen$*iv<yB 丿金j Solution“© Equr/alent Stress Total Deformation 白么勺 Fatigue To

27、ol Safety Factor "血 Biaxiafity Indtcation Fatigue Sensitivity?心 Fatigue Tool 2February 2, 2004Inventory »002010&23Shape Finder作業(yè)A12 -求解設(shè)置Open 從 Details of “Fatigue Tool 2,'窗 口:look in | J Load HdonwAWSYJ培訓(xùn)手冊(cè)32定義一個(gè)疲勞強(qiáng)度因子（Fatigue StrengthFactor） （Kf）為0.8 （描述的材料數(shù)據(jù)表示光滑 試件和在役構(gòu)件）.33.定義疲勞

28、載荷，源自一個(gè)比例歷程，選擇包括應(yīng) 變?cè)u(píng)估結(jié)果的在時(shí)間范圍內(nèi)的比例歷程文件（瀏 覽并打開 uSAEBracketHistory.daf,文件）.32.34定義比例系數(shù)為0.005俄們必須規(guī)范化載荷歷33. 程,以便使FEM載荷能夠與載荷歷程文件中的也4. 例系數(shù)匹配）：1FEM load11000/71000/加IFEM load200 strain gauge i200 strain gaugesampleHt5tory2.dat|SAEBcAcketHitfo<yd4!FierwneFiet of |ajI fie: C*|Details of "Fatigue Tool

29、2"zJI 0啊ICocciTypeHistory QataHistory Data LocationC:Pr ASAEgractetHstory&Scale FactorS.e-003j Options|Analy$«Ty|SN-GoodmanStress ComponentEqur/alent (Von M»e$)&n Size32Infinite Ltfel.e+009Fatigue Strength Factor (Kf) 0.8= .005xFebruary 2, 2004Inventory M02010&25Shape Find

30、er作業(yè)M2 -求解設(shè)置ansyG培訓(xùn)手冊(cè)40.February 2、2004Inventory M020108-#Shape Finder作業(yè)M2 -求解設(shè)置40.February 2、2004Inventory M020108-#Shape Finder作業(yè)M2 -求解設(shè)置 從 Details of "Fatigue Tool"窗口（續(xù)）：35 定義Goodman理論以計(jì)算貧乏軍應(yīng)力影響.36定義signed Von Mises應(yīng)力，用于和疲勞材料 數(shù)據(jù)進(jìn)行比較（使用signed是由于Goodman理 論處理負(fù)的和正的平均應(yīng)力形式不同）.37定義bin size為32

31、（雨流Rainflow和損傷矩陣 Damage matrices 是 32x32）.ANSYJ培訓(xùn)手冊(cè)向Fatigue Tool 2添加結(jié)果：38 插入壽命“Life”:1. RMB > Insert > Fatigue > Life2ooInsertjineering DataStructural Steel / SokeFatigue38.39插入安全系數(shù)uSafety Factor”:RMB > Insert > Fatigue > Safety Factor Ufe jineering Data 3 Structural SteelInsert/ S

32、oke醫(yī)2 DuplicateFatigueA Comment致Lfe 0 DamageSafety Factor39.-4. O Baaxidity Indkation40.February 2、2004Inventory M020108-27Shape Finder作業(yè)M2 -求解設(shè)置40.February 2、2004Inventory M020108-#Shape Finder作業(yè)M2 -求解設(shè)置 從 Details of “Safety Factor"窗 口 ：Detafc of Safety Factor"3 ScopeMinimum40.設(shè)置設(shè)計(jì)壽命Desig

33、n Life為1000次循環(huán)s.40.February 2、2004Inventory M020108-#ANSYJShape Finder作業(yè)A12 -求解設(shè)置培訓(xùn)手冊(cè)4I、j2CH- RMB > Insert > Fatigue > Fatigue SensitInsertFatiguemeerngData& Structural Sledj*因 d辭 Dupkate 電）Copy X Cut口 Clean X Delete匚I r.'IIII IW IW IVI KBI戛Ufe更 Damdge朝 Safety Factor舫 Biaxialty Indc

34、ation動(dòng) Equivalent Afternatng Stress 冬 RainHow Matrix心 Damage MatrixFabgue Sensitivity41.向Fatigue Tool添加結(jié)果（續(xù)）:41 插入疲勞敏感性 “Fatigue Sensitivity55:February 2, 2004Inventory ff002010&28ANSYJShape Finder作業(yè)A12 -求解設(shè)置February 2, 2004Inventory ff002010&#ANSYJShape Finder作業(yè)A12 -求解設(shè)置42.GeometryAll Bodes

35、曰 DefinitionSenstfvty ForLife3 OptionsLower Variation50%Upper Variation200.%Number of Fil Ponts25Chart Viewng StyleLrear從 Details of “Fatigue Sensitivity” 窗口:42定義一個(gè)最小基本載荷變化幅度為50%佼 互應(yīng)力為2250N）和一個(gè)最大基本載荷變化 幅度為200% （交互應(yīng)力為9000N）培訓(xùn)于冊(cè)向Fatigue Tool添加結(jié)果（續(xù)）:43插入雙軸指示 “Biaxiality Indication99:一 RMB > Insert &

36、gt; Fatigue > Biaxiality IndicationFebruary 2, 2004Inventory ff002010&29ANSYJShape Finder作業(yè)A12 -求解設(shè)置February 2, 2004Inventory ff002010&#ANSYJShape Finder作業(yè)A12 -求解設(shè)置-2dQ血O Safet J Soke .0 Fatigi eering Data Structural SteelInsertFatigueA Comment辭 Dupkcate 珞 Copy-4.95E&axZty IndKdOon43.

37、Equr/atent Akemdting StressGIS44插入雨流矩陣 “Rainflow Matrix19:一 RMB > Insert > Fatigue > Rainflow Matrix助 Life© Safety Fatigu©I Biaxial 罰 Dupkate 電 Copy X Cut 白 CleanI FatigueIA1 Comment495jESpamflow MatrixESESSEra44.Damage MatrixFebruary 2, 2004Inventory ff002010&30ANSYJShape Fin

38、der作業(yè)A12 求解設(shè)置培訓(xùn)手冊(cè)向Fatigue Tool添加結(jié)果（續(xù)）:45插入損傷矩陣 “Damage Matrix55:一 RMB > Insert > Fatigue > Damage Matrix曰 Life & Safety / Solve© Fatigue& Biaxiabi 辭 Dupbcate -© R3lo 電,CopyX Cut Structural Steel0 CleanX DeleteI FatigueToolpInsert0及0匚5945. 從 Details of “Damage Matrix55 窗口:

39、46設(shè)置設(shè)計(jì)壽命Design Life為1000次Details of T）amage Matrix 0 ScopeGeometryAHBode$Design Ufe1000.Chart Viewing Style Three Dimensional求解solve$46.February 2, 2004Inventory if002010832Shape Finder作業(yè)A12 -結(jié)果4ANSY培訓(xùn)手冊(cè)查看結(jié)果點(diǎn)擊并畫出壽命結(jié)果tLifeLifeJ&J4n目 Ll£February 2, 2004Inventory M02010834ANSYSShape Finder作業(yè)M2 -結(jié)果培訓(xùn)手冊(cè)February 2, 2004Inventory M02010835ANSYSShape Finder作業(yè)M2 -結(jié)果February 2, 2004Inventory M020108#ANSYSShape Finder作業(yè)M2 -結(jié)果點(diǎn)擊并畫出設(shè)計(jì)壽命為1000次循環(huán)的安全系數(shù)"Safety Factor".Safely Factor15