Femtet What s New. Murata Software Co., Ltd. All Rights Reserved, Copyright c Murata Manufacturing Co., Ltd.

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1 Femtet What s New Murata Software Co., Ltd. 1

2 Functionality Analysis Meshing General Functionality Modeling Results Display Item All Solvers Mechanical Stress/Thermal Analysis Mechanical Stress Analysis Thermal Analysis Piezoelectric/Mechanical Stress Analysis Piezoelectric Analysis Electromagnetic Waves Analysis Electric Field Analysis Magnetic Field Transient Analysis Magnetic Field Analysis Improved Meshing Enhanced Painting Function Tabs in List Form What s New Nastran Data Healing (Body Restoration) Material Database Streamlines/Forcelines and Contour/Vector Diagram Angle and Radius of Three Nodes Distance and Angle Calculation of Nodes 2

3 All Solvers: Results Import Can import - Mechanical stress analysis results - Initial stress for mechanical stress transient analysis - Initial temperature for thermal transient analysis 3

4 All Solvers: Deformed Shape Deformed shape can be taken into account Mechanical Stress Analysis (Substrate Bending) Electric Field Analysis (Resistance Calculation of Resistor) Resistor Import the results of deformed shape Substrate Strain Distribution Current Density of Resistor Resistance Change of Wiring Electrode1 Electrode1 Electrode2 Electrode2 Without Results Import With Results Import Mechanical stress analysis and electric field analysis can have different meshing setups. 4

5 Mechanical Stress/Thermal Analysis: Import of Initial Stress/Initial Temperature Examples Static Analysis of Initial Stress Displacement Imports results of initial stress Calculates Vibration after Releasing Displacement Steady-State Analysis of Initial Temperature Imports results of initial temperature Calculates Temperature Release by Attaching an Object to Device 5

6 Mechanical Stress/Thermal Analysis: Restart Function Mechanical transient/mechanical multi-step/thermal transient analysis can import results of arbitrary mode and restart analysis Restart (Continues from the last stage) Restart (Imports results) Analysis 1 解析 1 Analysis 1 解析 1 結果をコピー Copy results NEW 解析 2 Analysis 2 Analysis 2 解析 2 The function allows: -Restart analysis from an arbitrary mode of the existing results. -Avoid a duplicated calculation for an analysis where the different analysis conditions are set up along the way. -Change the convergence conditions if the calculation did not converge. 6

7 Mechanical Stress Analysis: Analysis of Hyperelastic Foam Model Foam has been added as hyperelastic material <Ogden Foam Model> -Is used to analyze materials such as sponge and styrofoam NEW Rubber Foam <Characteristics of Foam> -Compression characteristic is nonlinear -Volume is easily changed (Poisson s ratio 0) Result of identifying coefficient based on the test data Test data Nonlinear data of compression test can be used for analysis 7

8 Mechanical Stress Analysis: Automatic Creation of Ambient Air Ambient air is automatically created and its deformation can be taken into account In the case of magnetic/electric field analysis dealing with an ambient air for analysis that takes deformed shape into account, the distortion of mesh shape near the boundary can be avoided by calculating deformation of ambient air in the mechanical stress analysis. Meshes after Air Deformation Is Taken into Account in the Magnetic Field/Electric Field Analysis Ambient Air Deformation Not Calculated Ambient Air Deformation Calculated Air Air Expanded Solid Expanded Solid Due to the distortion of the mesh shape, the accuracy of the subsequent magnetic field/electric field analysis will be deteriorated. NEW *If the mesh deformation is small enough against its size, ambient air calculation is not needed as the mesh shape is not distorted. 8

9 Mechanical Stress Analysis: Volume Change Ratio Volume change ratio can be displayed Integral result : e+00 Volume (m3) : e+00 Integral result/volume: e+00 NEW The volume after deformation can be displayed 9

10 Thermal Steady-State Analysis: Results Output of Heat Balance and Heat Resistance Heat balance and heat resistance between body attributes can be saved in text format (csv file) Body Attributes (from which the heat is transferred) Body Attributes (to which the heat is transferred) Heat flow between body at Heat of 1.94W is transferred from body attribute [JUNCTION] to [CHIP] 10

11 Piezoelectric/Mechanical Stress Analysis: Direction Display of Anisotropic Material Can show direction with one vector for anisotropic material For anisotropic material, the direction is displayed with three vectors. If [Vector] is selected to specify the direction, it is displayed with a single vector. Ver [Direction] tab Select [Vector] Ver

12 Piezoelectric Analysis: Y Axis of Graph Y-axis can be specified by SYZ matrix for piezoelectric impedance and admittance graph Y-Axis is Mag by default 1 4 Change Setup Change to db 3 2 Redraw Graph 12

13 Piezoelectric Analysis: Complex Number for Acoustic Impedance Displacement-Magnitude [um] Displacement-Magnitude [um] Can enter imaginary part for acoustic impedance Displacement Frequency [Hz] Fig. 1 Disc Vibrating in a Bending Mode Effect of Acoustic Impedance Acoustic impedance is set to a disc. Fig. 1 Imaginary part is set to 0, 1, 10, 100, and real part to 0. Frequencies become lower as the impedance becomes larger. Fig. 2 Real part is set to 0, 1, 10, 100, and imaginary part to 0. The vibration becomes smaller as the impedance becomes larger. Displacement Frequency [Hz] Fig. 2 13

14 Piezoelectric Analysis: Angular Velocity Coriolis force in harmonic analysis and centrifugal force in static analysis can be solved Arms of a tuning fork are vibrating in x-direction. Arrows show the displacement at the maximum voltage. Due to Coriolis force, arms are vibrating in y-direction too. Arrows show the displacement at 0 voltage. Analysis with Coriolis force taken into account A tuning fork is in a rotating state. Alternating voltage is applied to piezoelectric materials (red objects) to drive vibration of a tuning fork. 14

15 Piezoelectric Resonant Analysis: Dialog Box for Impedance Calculation Frequency can be set automatically A button is available for automatic setting. The values are determined as follow: Minimum frequency Minimum value of resonant frequency x 0.8 Maximum frequency Maximum value of resonant frequeny x

16 Electromagnetic Waves Analysis: Results Summary All results summary can be shown on output table NEW All Results of Propagation Constant in Example 3 of Electromagnetic Waves Analysis This function of results summary makes faster output display in the electromagnetic waves analysis. 16

17 Electromagnetic Waves Analysis: TDR S-parameters can be transformed to TDR results S-parameters obtained in harmonic analysis can be transformed to impedance time-response of TDR Frequencies to analyze are automatically transformed by time setting NEW Electrode Substrate Substrate Having Discontinuous Area 17

18 Electromagnetic Waves Analysis: Accuracy of Open Boundary Accuracy of electromagnetic field in low-frequency analysis is improved Electric field strength distribution of mono-pole antenna (Analysis space is wide enough) Antenna The analysis space of at least a quarter of wave length is needed for accurate analysis of antenna. The lower frequencies require the wider space which makes it difficult for Femtet to analyze with accuracy. The function of electromagnetic field correction is added for accurate analysis in the narrow analysis space. Feeding Point GND Open Boundary Before Improvement Open Boundary After Improvement 18

19 Electric Field Analysis: Current Boundary Condition Current boundary condition is available for static analysis of resistance Plating Solution Anode Cathode Inflow Current Outflow Current In the plating analysis, non-linear analysis is not required any more to reach the current. Calculation time is reduced. NEW Electric Wall Boundary Condition Plating Analysis Distribution of Current Density 19

20 Magnetic Field Transient Analysis: Variables and Parametric Analysis for External Circuit Torque [N m] Variables and parametric analysis are available for parameters of external circuit NEW Optimization of Power Phase (Maximum Torque) 30 Torque Power Phase [deg] 20

21 Magnetic Field Transient Analysis: New Component for External Circuit Switch component is available for external circuit Useful for DC motor analysis NEW 21

22 Magnetic Field Transient Analysis: Self-Induced Current Self-induced current can be solved in transient analysis Current Density Distribution When 10KHz Current Is Applied to a Plate 2D 3D 22

23 Magnetic Field Transient Analysis: Electromagnetic Force Can calculate the electromagnetic force for other than rotating machinery NEW Electromagnetic Force on Magnet and Electromagnet 23

24 Magnetic Field Transient Analysis: Halbach Magnetization Halbach magnetization is available for magnetization direction NEW 24

25 Magnetic Field Analysis: External Magnetic Field External magnetic field can be set in transient analysis Input type can be selected in static/harmonic analysis Outer boundary condition is not required to be changed in static/harmonic analysis AC magnetic field the magnetic wall. NEW Electromotive Force of Receiving Coil of Wire(NFC) 25

26 Improved Meshing Increased likelihood of successful meshing by planation of curved face Original Form Particle Model Number of particles: 11,664 After Planation Mesh Diagram Meshes 48,389,773 Time 4h43m26s Memory 146G 26

27 General: Enhanced Painting Function Each body can be painted with 24 color patterns on modeling and results window NEW 27

28 General: Tabs in List Form Tabs are arranged in a list form for dialog boxes of analysis condition/body attribute/material property/boundary condition NEW Ver Ver

29 General: Nastran Data Solvers and elements are expanded to handle Nastran data [Supported Solvers] Electric field, Piezoelectric, and Accoustic analysis in addition to Mechanical stress analysis. *Depending on analysis condition and boundary condition, there may be a case that analysis cannot be performed. [Supported Elements] 3D Hexahedron in addition to tetrahedron 2D Triangle and Rectangle 29

30 Modeling: Healing (Restoring) Function Imported bodies can be healed Ribbon In the imported CAD data, -restores the invalid bodies -removes the minute edges/faces CAD Import See [Help]>[Modeling]>[Auxiliary Tools]>[Healing (Restoring Bodies)] for details 30

31 Modeling: Healing (Restoring) Function Imported bodies can be healed Removes Minute Edges Removes Minute Faces Removes Spikes Removes Gaps Restores Invalid Shapes Removes Sliver Faces See [Help]>[Modeling]>[Auxiliary Tools]>[Healing(Restoring Bodies)] for details. 31

32 Modeling: Material Database Database of soft ferrite is expanded Material Database NEW Added 6 materials: MA055, MA070, MR02, MR04, MBFX, MBT3 Added 7 materials for core loss (iron loss) characteristic: MB3, MB4, MBT1, MBT2, MBT3, MBF4, MB1H Expanded temperature characteristics *The data is provided by JFE Ferrite Corporation 32

33 Results Display: Streamlines/Forcelines and Contour/Vector Diagram Streamlines/Forcelines and Contour/Vector diagram can be displayed at the same time Contour Diagram and Magnetic Flux Lines Vector Diagram and Magnetic Flux Lines *Contour diagram is available only in 2D for simultaneous display 33

34 Results Display: Angle and Radius of Three Nodes Angle and radius of arc passing through three nodes can be calculated Distance and angle are displayed on the results window. Angle Distance Radius of arc passing through three nodes is displayed on the output window Distance[mm] = Starting-point[mm] = X: , Y: , Z: Endpoint[mm] = X: , Y: , Z: Difference of each coordinate[mm] = dx: , dy:0.0000, dz: Angle[deg] = Radius of arc passing through three nodes[mm] =

35 Results Display: Distance and Angle Calculation of Nodes Displacement can be taken into account for calculating distance and angle of nodes If [Displacement] is selected, the distance and angle of nodes can be calculated with displacement taken into account. Results Display Distance (Take displacement into account) Angle (Take displacement into account) Output Window ***** Calculation with displacement taken into account ***** Distance[mm] = Starting-point[mm] = X: , Y: , Z: Endpoint[mm] = X: , Y: , Z: Difference of each coordinate[mm] = dx: , dy: , dz: Angle[deg] = Radius of arc passing through three nodes[mm] =

36 Thank You 36