使用pulse软件进行模态分析的基本过程.docx

使用pulse软件进行模态分析的基本过程自我在实践中总结（pulse软件学习体会）、导入数据;Visual 5TN Pro: Project 2.PR.JFile Display Window Help* H T 0 Time-Base.ProjectNewStructure Browser.,.RemoveStructure.昼 Printer Set叩Data Block.巳 Shape Table.5DMDEMO.PRJ (C;Program , AExannples)Project 1 .PRJ (C:Program .Edimples)产 Options,fl匚就|初始设置（大部分情况下可不进行） 观察各点激励的频率响应函数图（可以通过改变颜色来加以区别）faData Block 2.BLE, 1 selected FRF, Rows/Columns; Auto Scale-n| ><lMM 999山二匚启切#iiDn F陀quei匚w R龄口口门汜HTmcc丘i匚百I l=> AFile Edit Display Form-zt Tcols Transfornn Acaustics Modes E _LlLHcL 国 Q，Rl IMfflPH Eq1 Bd Nq 骸 回SelectHideNoMeas.TiJpeDDFsUnitsSoundPlayFRZE99(m/rg/NMtt2NoFR-湖帅广2VNPlau.卜*MoFRF999g广2）/NPlavM#4NoFRF999PlayM#5NoFFIF999Plav二、导入几何形状Visual 5TN Pro: Project 2.PftJFile Display Window HelpProjectffl n§ T H TigNewAdd.Structure Browser.Removeselected FRF, Rows/Ci1st Tools I Transform I PXLoprm监 Structure.a Printer Setup. Data Block.SDMDEMC'.PRJ (C:Program .Examples)Project 1 .PRJ (C:Program . .Exjmplee)产Options.TLExiti ii iiqi11日3-BSolojk"uh L知皿Sbfnm 点击Draw-Aanimate或快捷方式（如果几何形状上 的点以及编号、测量顺序与数一致，可直接进入， 否则，指定激励测量点的位置与方向，还可重新设 定）Assignment MethodsC Match Point Numbers wnd DOFs.(* Graphical Assignment17 Show Animation SourceKCancelM Draw 3DView: Structure 1.5TR.File Edit Displ-ay Drew Animate Movie ModiFyDraw Animate Movie Modify FEA 凹 :>o( Animate1 :* Add Point to Line1 ffijlAdd Point to 5u而匚巳oH M&sh.Interpolate All Points囹 Select M#'s冥 Drawing AssistantQ Group Selected Objects.Ci Un group Selected Substructures.PointsTop (+Z)3DViewGraphical M# AssignmenlClick on a point and direction toassign the HitUnselectReFreshDisplayPersp: |ClosePersp: +10 |三、模态分析»Data Block Z.BLKP 3 selected FRFsp Rows/Colu=>_|n|x|iFile Edit Display Format Tools Transform AcousticsE回八pT 阳口 dal Para met*ZlLkl ck Rl Ing Ph Q BS Nq 答&Display卜M#3 939Acceler=> -|匚叩V笛N&w File 11 Select Hide Meas.Typ 111.一 1.心 Synthesize FRFs.Block 2.BLK, 1 selected FRF, Rows/Columns, Auto Seal线 Curve FittingFile Edirfplay Format Tuuls Transform ALuustics Modes Curve Fit H _L 叵仙业国 V Rl ImPh ES Bd1 Nq |g| Fl tModew.rJ芝_.一省云L渚±吕_|心 pmccnRM1. Mode Indicator 2. Frequency & DampingMethodlai Peaks Functioilai Peaks Function_ - _odal Indicator FunctionComplex Mode Indicator Function Multivariate Mode Indicator FunctionCount PeaksFrequency(Hz) DampingRes Mag1- Mode Indicator 2. Frequency 8 Damping 3. Residues 昆 Save ShapesMethod|Nodal Peaks： FunctionModes|Sir)gle Fteference 二|Count PeaksM odeFrequencyHzDampingRes： PhsdegRes Mag1. Mode Indicator 占 Frequency & Damping 3. hMethod|Ortho Polynomial4 ModesFID I|GlobalSMbility |ModeFrequency(Hz)DampingRes Mag1. Mode Indicator2. Frequency DampingMethod| Ortho Poljrnomial4 Modes Global刁二巨，二SMbili" |MadeFrequency Hz)Damping 国Res Mag (m/sA2J/N-sec)Res Phs deg)172.342722002.1233671.7544232.07Select2. Frequency & Damping3-也曲dues & Saue Shapes 1MfflMtt2Mtt3|Ortho Polynomial二|Mtt4Mtt5pingle Heference,1卜ResiduesSave ShapesModeFrequency (Hz)D arnpi ng Res MagR es Phs9deg172.34.274.94E3354-22002.124.74E331633G71.7585018044232.073.07E3150Shape Table 4 .SUP:，t Residue mode shapes: Shape=>File Edit Display Tools 口ShapeLabelF requencUnits )amping 慎)1GOP;SOP72.3Hz4.272GOP:SOP200Hz2.123GOP:SOP367Hz1.754GOP:SOP423Hz2.07S electMeas. TypeDOF?Unit?Shape M agnituiMttlR esidue mode999(m/s'2yN-s2.33EcMtt2R esidue mode9993.44Ec四、模态振型正交性验证File DisplayShapeDispl郎 | Plcit Labelf?1 Labels | HU MAC 室匚口阳A匚Orthogonality 昼Print.FrequencyDamping %Shape 1GORSOP72.34.27Shape 2GOP:SOP2002.12Shape 3GORSOP367175Shape 4GORSOP4232.07ShapeShapeShapeShapeGORSOPGORSOPGORSOPGORSOP72.32003G74231.0000.2521.750.2062.070.2094.272.120.2521.0000.2650.5810.2060.2651.0000.2810.2090.5810.2811.000四、注意问题数据和几何形状可以分开处理，但相互关联时要注意相互对应;建立几何模型时要可以根据测量顺序对测量点进行编号；模态分析结果可进行归一化检查。五：一些说明SelectHide1NoPULSISelectHideMeas. TjjpeDOFsUnitsMtt1NoFRF+1乙十1职(rn/3/NMB2NoFRFFRFHZ:+2Z (rn/<2/N+4Z:-b15K (rn/<2/NMB3NoMB4NoFRFi-4Z:+2Zl(rn/<2/N自由度说明（如上图职+1亦），表示激励点为4号点，激励方向为+z方向，响应点为15号点，加速度传感器安装方向为+x方向，可以修改。模态拟合时的规律同一测量方向两较近的点拟合后所得的模态频率基本一致，同一测量方向两较远的点拟合后所得的模态频率差别也不大；不同测量方向两点拟合后所得的模态频率相差较大；只有全部测量后的获得正确结果的点都参与拟合，当点数较大时，拟合后所得 结果比较正确。六：部分技巧：重新分析Data Block 3.BLK,File Edit Display Frirrridt ToolsCurve FitIM Quick FitJ；Window For Curve FittingI5ort Mod已5 by Frequency.Hi： Delete Selected Modes.|忘田 日日r All Fit Det日,曳I Clear Fit Functions.鲤 Clear Stability.Mode Indicator>罡i FRF Synthesis x| Close" | Ji r添加其它频段的点：移动分析范围即可