midas nfx 2013: towards a new generation of mechanical fea solution

midas NFX 2013 Release Webinar

Apoorv Sharma Cyprien Rusu Piotr Stepien

http://www.youtube.com/watch?v=YGTkeEBq-1c

Total Solutions for True Analysis-driven Design

I. Why midas NFX ?

II. What is midas NFX?

III.What is new in NFX 2013?

IV.Development Roadmap

V. Project application

VI.Next Events

Summary

http://www.youtube.com/watch?v=YGTkeEBq-1c


CAE Analysis for Product Design

http://feaforall.com/2013/03/31/what-is-cae/







2. Fast analysis and results

evaluation with Minimum Operations

3. Immediate Re-Analysis in case of

change in CAD model with the same data

transferred from the step 1

1. Application in practice

with Minimum Learning

4. Auto generation of

Customized Analysis Report

CAD Designer’s CAE Workflow

http://feaforall.com/2013/06/08/5-tips-to-improve-your-fea-analysis-workflow/

















CAE Analyst Workflow


All solution-In-One Interface

Linear Static Analysis (Linear Contacts, Boundary/Joints)

32/64bits

High Performance Parallel Solvers

Heat Transfer/Thermal Stress Analysis (Steady / Transient)

CFD Analysis (Thermal/Fluid, Moving Mesh)

Fatigue Analysis

Composite Materials Analysis

Modal/Buckling Analysis (Prestress, Rigid/Joints)

Dynamic Analysis (Time, Frequency Response, Random, Nonlinear Explicit)

(Prestress, Rigid/Joints)

Nonlinear Static/Quasi-Static Analysis (Material/Geometry/Contacts) Total Solutions for

True Analysis-driven Design

All-in-one Interface

Linear Static Analysis (Linear Contacts, Boundary/Joints)

Modal Analysis (Prestress, Rigid/Joints)

Nonlinear Static/Quasi-Static (Material/Geometry/Contacts)

CFD Analysis (Thermal/Fluid)

Composite Materials

Analysis

Heat Transfer/Thermal Stress (Steady / Transient /Nonlinear)

Linear Dynamic Analysis (Time, Frequency, Random Response)

Buckling Analysis

All-in-one Interface

CFD Analysis (Free Surface)

CFD Analysis (Moving Mesh) Nonlinear Implicit Dynamics Nonlinear Explicit Dynamics

Nonlinear Buckling Analysis Topology Optimization Size Optimization Fatigue Analysis


II- What is midas NFX?


Designer Mode Analyst Mode

CAD model-based work environment

Fast and simple way to perform

simulation design with various

automated functions and minimal

input requirement

Basic Operations on CAD Model -

for CAD Designers

Precise Modeling and All Type of Analysis -

for Simulation Engineers and Mechanical

Analysis Specialists

Complex geometric modeling

Various mesh generators

Accurate modeling and analysis

Extensive result analysis functions

Designer / Analyst Mode in One Software


Analyze Large Assemblies Quickly

Automated Contact 183 defined contacts

Linear Static • Analysis time : 251.515sec • 32bit 2.83GHz CPU • 3.25GB RAM

105 Parts Model

Hybrid elements • Nodes : 162,396 • Elements : 187,456 • 188.328sec


Fast Meshing and Superior Mesh Quality

Elements: 84,629

Nodes: 63,395

Elements: 83,136

Nodes: 162,319

Hexahedral elements Pyramid elements Tetrahedral elements Prism elements

General higher order tetrahedral mesh

Hexahedral-Tetrahedral Hybrid Mesh

Hexahedral Element

Pyramid Element (Hexahedral-Tetrahedral

link element)

Tetrahedral Element

Hybrid Element Mesh Composition

Shortened analysis time & improved analysis results


Mesh Quality Checking

http://feaforall.com/2013/04/21/cad-model-simplification-for-fea-analysis/













Easy Contact Assignment

Assembly Model auto contact definition

Individual contact definition check

Contact Manager to conveniently check,

revise and manage contact definitions

Depending on the viewpoints of the contact surface, the shaded

surface changes, which allows the user to easily check the location

of the contact surface.


Large assembly models analyzed in less time

Linear Static Analysis Linear Static Analysis Linear Static Analysis Modal Analysis

(50 Modes)

Linear Static

Analysis

Nonlinear Static Analysis

(nonlinear contact)

Solid Mesh (156,862)

Nodes (272,597)

Degrees of

Freedom (817,791)


Nodes (303,347)

Degrees of

Freedom (916,890)

Shell/Beam Mesh

(156,862) Nodes (272,597)

Degrees of

Freedom (951,378)

Shell Mesh (170,123)

Nodes (162,391)

Degrees of

Freedom (974,346)


Nodes (280,060)

Degrees of

Freedom (840,180)

32bits 64bits 32bits 32bits 64bits 64bits

AMG MFS AMG AMG AMG MFS MFS

232 sec 149 sec 138 sec 548 sec 160 sec 1.16 Hour 51 sec

1010 sec,

No of iterations: 27

1 time: 37 sec

※ MFS (Multi-frontal, Direct Method), AMG (Algebraic Multigrid, Iterative Method)


III- What is new in NFX 2013?


Large-Scale Models

526 parts

1,890 parts 1,502 parts

132 parts

45 parts

• New optimized framework that fully supports 64-bit systems

• Memory usage reduction & GUI improvement by new graphic engine development optimized for large scale model

• Improvement of Database configuration and management efficiency


Analysis Wizard

Analysis Wizard

Linear Static

Modal

Buckling

Heat Transfer


Wizards linear, modal, buckling, heat transfer analysis, practical interpretation

1. Analysis Type

2. CAD Model Import

3. Define Material 4. Load/Boundary Condition

5. Analysis

6. Result

Assembly Model

Import

Thermal

conditions

application

Auto-meshing

Automatic heat

contact between parts

Result

For Design


Simplification tool Improvement

Remove Holes Remove Fillets

Remove Faces/Lines Merge Faces

Reinforcement of simplification tool

Meshing Quality Improvement by Removing imprinted Face/Edges & Merging Faces


Mid-Surface Extraction

Mid-Surface Extraction

Manual

Auto

Auto Manual Solid Model Shell Model Mid-Surface Extraction

(Auto Manual)

Meshing Primary Mode Secondary Mode


Watch the demo on Youtube

http://www.youtube.com/watch?v=e1rGvsFj-8A

Piotr Stepien Midas NFX CAE Analyst




http://www.youtube.com/user/CyprienR/





Creep Material Models and Heat Transfer by Radiation

Nodes: 263,283

Elements: 222,048

Total CPU time: 54,903.6 sec

Wall clock time: 46,720.9 sec

Improvement of Heat transfer by radiation

90%

Creep Material

Creep

Empirical Law (Class1)

Empirical Law (Class1)

Input from table

Deformation by self load

Deformation by Creep effect

Total CPU time: 6,737.8 sec

Wall clock time: 3,963.6 sec


Implicit Nonlinear Dynamic Analysis

Material Prop. (2D Orthotropic) [0/90/45/-45]s : 8Ply (2.03mm)

Value

Longitudinal Modulus 38.61GPa

Lateral Modulus 8.27GPa

Poisson’s Ratio 0.26

In-Plane Shear Modulus 4.14GPa

Longitudinal Transverse Shear Modulus

4.14GPa

Lateral Transverse Shear Modulus 4.14GPa

Longitudinal Tensile Failure Stress 1,061.79MPa

Lateral Tensile Failure Stress 31.03MPa

Longitudinal Compressive Failure Stress

610.19MPa

Lateral Compressive Failure Stress 117.90MPa

Shear Failure Stress 71.71MPa

Plate : Composite Material

Rigid Body : Steel

Initial Velocity: 12.74m/sec

fall / crash analysis on composite board



http://www.youtube.com/watch?v=Xcv56kJDLIs&feature=youtu.be


http://www.youtube.com/watch?v=Xcv56kJDLIs&feature=youtu.be




http://www.youtube.com/watch?v=Xcv56kJDLIs


Transient Non-linear Heat Stress Analysis

Step - 1 : Transient Heat Transfer Analysis

Step - 2 : Temperature Extract by time

period

Step - 3 : Temperature Heat Stress

Step – 4 : Non-linear Analysis

Transient Heat Transfer Analysis

Temperature change in time

Shape change in time

Transient Non-linear Heat Stress Analysis

(Automated Process)

Nonlinear Static Analysis considering thermal load

&



http://www.youtube.com/watch?v=sbahTRdJhK0








Design Optimization in All Areas

Thermal/Fluid Analysis

• Steady state/transient thermal Analysis • Thermal stress/deformation • Fluid Dynamics (CFD)

Stiffness/Resistance/Durability

• Linear Static • Buckling • Nonlinear Static

• Nonlinear Explicit Dynamic • Fatigue/ durability Analysis • Topology optimization

Dynamics/Motion Analysis

• Random Dynamics • Spectrum Response •Multi Body Dynamics

•Modal Analysis • Transient Response • Frequency Response

Optimum Design

• Topology and Size Optimization •Optimized model generation


Topology optimization of Design

Related Analysis Type: Linear Static, Modal, Frequency Response

Design limitation condition on Stress, Strain, Volume, Draw Direction/Symmetric Condition

Concurrent Optimization for various operation/load conditions

Analysis Model Automatic Re-Generation/Mesh Smoothing without additional CAD operation

convenient features: Mode Detection, Design/Non-design area definition

Define Design Area Optimization

Optimization with Unique Max Value

Eigen Value

Design condition (Draw Direction)

Design Evaluation

No condition

Model Generation

Optimization with Design



http://www.youtube.com/watch?v=pQunlvU-Wuo










Size Optimization of Design

Interact with all types of Heat/Structural Optimization

Design Variable of property/material : Intuitive size optimization

Design Sampling Various Methods (FFD, CCD, OA, LHD) & 1D Parameter Study Correlation between Design variable & response Analysis

Size Optimization by Approximate Model: Kriging model, Polynomial Regression model 2D/3D Graphic tool for approximate model analysis00

Sampling & Response Face Generation

1.Design Area Set

4.Size optimization 3.Parameter Modeling

DV1

DV2 DV3

DV4

DV3

DV2

2. Topology Optimization



http://www.youtube.com/watch?v=fx63UdvCnvw








IV- Development Roadmap


Development Roadmap

NFX 2014

•Direct mesh edit/control

• GPU based high performance matrix calculation

solver

• Optimization (Size 2nd, Bead)

NFX 2015

• GPU based high performance dynamic solver

(Explicit)

• Optimization (reliability)

• Materials (Crash/damage models)

NFX 2016

•Optimization (shape)

• Noise/Sound Analysis

• Rotor Dynamics

• High Performance Dynamic Analysis


V- Project Applications


NFX Application

Automotive Construction Consumer Goods

Electronics & Semi-conductor

Equipment & Machinery Materials & Chemical Energy Medical


Midas NFX Automotive Applications


RCAR Low Speed Impact Analysis

Nodes: 187 512 Elements: 185 351

RBE2 Element

Barrier : 1,400kg Concentrated mass (COG)

Simplification to assess the damage to the vehicle rear structure

Vehicle : 1,119kg Concentrated mass (COG)

RBE2 element


RCAR Low Speed Impact Analysis-Rear

Displacement -Bottom View

Effective Plastic Strain and Crush CAN - Progressive Collapse

Displacement -Side View


Performed by midas NFX explicit non-linear Dynamic Analysis

Rear Structure Damage (Rear View) Rear Structure Damage (Bottom View)

Trunk Lid

Side member

Rear End Panel

Rear floor

Rocker RH

Rocker LH


Stacker Reclaimer

This model have been generously provided by Excellutions, South Africa (www.excellutions.co.za)

Analysis Intent: Evaluating the transfer of Conveyor, Gearbox and Bucket Wheel of an older machine onto a newer lightweight structure.0

http://www.excellutions.co.za/


Crane Stability Check

Analysis Type

• Linear Static Analysis

• Sliding Contact

62kgf

62kgf 420kgf

420kgf 300kgf

300kgf

< Deformation Shape& Stress Distribution>

<Stress Distribution of bolts> <Fixed boundary Deformation Shape >

Loads/Boundary

conditions


Heat Transfer of TV LCD panel

Analysis of Thermal Stress

Result of Stress distribution

< Maximum Frame banded : 0.2mm>

Result of Deformation

<Maximum Frame banded : 0.2mm>

Analysis of Thermal

Transfer

<Front>

0

10

20

30

40

50

60

70

80

0 0.5 1 1.5 2 2.5 3

Tem

per

atu

re (℃

)

Time (sec)

A <Front>

B

<Back>

A

B Analysis Type

• Heat Transfer

• Thermal Stress

Target Model

A


Stair Lift Stability Check

Loads & Boundary Condition

Footrest

Plate Seat Squab

Spine

Armrest

Armrest

Results

<Deformation Shape> <Stress Distribution>

FE Model

Target Model


Structural Stability

Internal

pressure load

Frame analysis result

Frame bending shape Frame of Bending Moment

Diagram

Concentrated Stress

distribution

Hoop Stress

(On-Curve Diagram)

Silo Deformation

Shape and

Stress distribution

Upper Silo

analysis result

RkYek

Rq /

'1

22 cossin qpq

Analysis Type

• Linear Static Analysis

•1D, 2D Elements


VI- Next Events


Technical Webinar Series (All Free)

Time: end, June ~ July Beginner Level Topics • Work with complex shapes • Contact analysis in easy way • Nonlinear analysis for beginners

Mid-level Topics • Optimization • Non linear (geometric & material) • Dynamic Analysis • Benchmarks

High-end Topics • Fatigue analysis • Composite analysis • Frequency vs. Spectrum response • Explicit cases (Impact + post buckling behavior + ....)

Industry Application Sessions • Automotive


More from NFX Network

midasNFX.com

Stacker Reclaimer Model: Typical Application: Bulk Material Handling - The stacking and Reclaiming of Coal/Iron Ore from material heaps in Bulk Storage Yards Analysis Intent: Evaluating the transfer of Conveyor, Gearbox and Bucket Wheel of an older machine onto a newer lightweight structure.

FEA Application : Evaluate the stress distribution through the structure as the counterweight is slowly being increased to a point where the existing luffing hydraulics can accommodate the out of balance portion of the boom and operational payload. Highly stresses areas will have to be modified/changed. Different structural solutions can now be evaluated to ensure structural integrity during operations. Once the needed modifications have been decided on, a full costing can now be done by accounting for the relevant work at the structural places where it is needed. The savings of salvaging older equipment, the gains from the increase in through-put versus the cost of the modifications can now be properly assessed before any down-time is incurred or capex is risked.

Download Model and Try by yourself

midas nfx 2013: towards a new generation of mechanical fea solution

Technology