MIDAS/FX+

MIDAS IT Co., Ltd.http://www.MidasUser.com

We Analyze and Design the Future!

excellent Information TechnologySponsored by

Ministry of Information and Communication, Korea

MIDAS/FX+

About FX+

General Purpose Pre/post-processor

CAD Translator

IGES, STEP, STL

Parasolid, …

3D Modeler

2D Modeling

Surface Modeling

Solid Modeling

Shape Healer

Shape Analysis

Healing & Repairing

Mesh Generator

Unstructured Mesh

(Surface/Solid)

Structured Mesh

Pre-processing Input

Load / B.C.

Analysis Control

Solver Interface

MIDAS (Civil/Gen)

Nastran, Ansys, …

Post-processor

3D Visualization

Animation, Graph

Table, Report

Mec

FEA Solver

Static, Dynamic

Heat Transfer

Nonlinear Material

FX++

MIDAS/FX+

Framework

Main

Menu

Works

Tree

Property

Window

Tabbed Toolbars

Context

Menu

Auto-hide

Message

Window

Work Window

MIDAS/FX+

Location Entry Field

• Mouse Snap:

• Keyboard Input: Mathematical expressions can be used. <Ex> 100/2*sin(40)

Task-oriented User Interface

Drawing Type Selection Dynamic Instruction for Current Input

Figure-on/off Button

Method List

Command/Method-sensitive Figures

MIDAS/FX+

Task-oriented User Interface

Current Defining

Not Yet Defined

Defined

Preview before Action OK! Go!

Preview

Reset

MIDAS/FX+

Graphic Display

Wireframe Shading Shading with Edge

Model Shape

BoundingBox

Mouse-out Mouse-in

MIDAS/FX+

Data Exchange

Import (Geometry)

IGES, STEP, STL, Parasolid, etc.

AutoCAD DXF: 2D Drawing in Sketcher

Export (Geometry)

IGES, STEP, STL, etc.

Export (Analysis Data)

MIDAS/Gen, MIDAS/Civil

Nastran, Ansys, Adina, etc.

ASCII Text File (can be edited by user)

IGES

Solid

Mesh

Standards for Data Exchange

• IGES (Initial Graphics Exchange Specification)

• STEP (Standard for the Exchange of Product Model Data)

• STL (Stereo Lithography) – De facto standard for RP

Missed data can be detected & corrected

by FX+’s Shape Healer!

MIDAS/FX+

Shape Healing and Repairing

IGES Data

(Shaded View)

Free Edge

Analysis

Specialized Module for Shape Healing and Repairing

Working Window Static Window

U-V WindowMessage Window

Shape Healer

MIDAS/FX+

Shape Healing and Repairing

Free Edges & Gap

Analyze / Heal (Fix Corrupted Geometry)

Topological Validity, Free Boundaries

Fix Missing Seam-edge

Fix Orientation: Edge, Wire, Face

Fill: Gaps, Holes

Sew, Split

Upgrade: Continuity, Converting

Repair (Modify for Meshing)

Divide: Edges, Faces

Merge Edges, Extend Faces, Append

Fix Small Edges/Faces, Split Revolved Faces

Remove: Floating Objects, Faces, Internal Wires, Sub-shapes

Convert NURBS Geometry to Canonical Geometry (Analytical Form)

Convert: Wire to Face, Shell to Solid, Solid to Shell

Analyze

Sew & Fill

MIDAS/FX+

Solid Modeling

Fillet

ChamferPattern(Copy)

Fillet

Boolean Op. (Fuse)

Boolean Op. (Cut)

Hole (Thru-all)

Hole(User-drawn Section)

Extrude

Hole(Defined Depth)

MIDAS/FX+

Solid Modeling

Sweep

Shelling

Revolve

More functions & solid primitives not presented here!

Loft (Thru Sectional Profiles) Extrude

MIDAS/FX+

Surface Modeling

Stitch (by Curves) Loft

Offset

Sweep

Revolve

Extrude

Grid Patch NURBS

Patch

Vertex Cloud Patch

Coons Patch

More functions & surface primitives not presented here!

MIDAS/FX+

History-based Solid Modeling

FX+’s Shape Evolution service enables user to change the

model parameters (dimension & location) at any time.

This service carries out the dimensional analysis and/or

re-production of similar models very easily.

This works even when FX+ is re-started or model is re-opened!

Change Fillet Radius

MIDAS/FX+

Automatic Mesh Generation

Loop Mesher

Direct Surface Mesher based-on Looping Algorithm

Delaunay Mesher

Indirect Surface Mesher based-on Delaunay Triangulation

Grid Mesher

Hybrid Surface Mesher based-on Modified Grid-based Approach

Tetra Mesher

Solid Mesher based-on Delaunay Tetrahedralization & Advancing Front

Map Mesher

Structured Surface/Solid Mesher based-on Transfinite Interpolation

A number of practical extrusion methods also exist both for surface and solid meshes!

MIDAS/FX+

Loop Mesher

Auto Surface Mesh Generation

Delaunay MesherGrid Mesher

Internal Hard PointsInternal

Lines

Regularity

Uniformity

Boundary Sensitive

Orientation Insensitive

Sizing Control

(< 1/2)

Internal Curve/Point

Loop Mesher

Delaunay Mesher

Grid Mesher

MesherReq. Item

MIDAS/FX+

Auto Surface Mesh Generation

FX+’s surface meshers strive to generate offset elements near

boundary for the best quality.

FX+ provides a number of controls to manipulate mesh density

and generates optimum meshes required in practice.

1

5

1

5

Smooth Transition

Offset Elements

Shrunk

Domain

15

MIDAS/FX+

Auto Surface Mesh Generation

Offset Elements for

Quad(-dominant) Mesh Full Quad. Mesh Full Tria. Mesh with Repulsive Point

Symmetric Mesh Boundary Sensitive Mesh

MIDAS/FX+

Auto Solid Mesh Generation

FX+’s Tetra Mesher auto-generates tetrahedral solid mesh

with variable sizes in smooth transition. (200,000 Tetra’s/min)

MIDAS/FX+

Auto Solid Mesh Generation

FX+’s Tetra Mesher is capable of including holes, curves and

points that are present in/on the solids.

Re-bars & Tendon in PSC BridgeLine Elements Compatible with Solids

MIDAS/FX+

Smart Size Control

FX+ provides adaptive seeding function based-on user-specified

mesh size and geometric characteristics.

User-size

Seeding

Curvature-based Seeding

NormalSeeding

AdaptiveSeeding

MIDAS/FX+

Map Mesh Generation

FX+’s Map Mesher generates the structured (regular &

orthogonal) mesh both in the surfaces and solids.

Surface (Pile)

k-sided Area (Simply-connected)

k-faced Volume

(Simply-closed) Solid (Pier)

Solid (Junction)

MIDAS/FX+

Solid Map Mesh Generation

FX+’s Solid Map Mesher generate hexa and/or penta mesh in

simple solids by full mapping or combination (auto+map).

Full Mapping

Auto+Map

MIDAS/FX+

Manual Mesh Protrusion

2D Mesh

Extrude

3D Mesh

2D Mesh

Sweep

Fill btwn 2D Mesh

Mirror

MIDAS/FX+

Manual Mesh Protrusion

Fill between Mesh

Offset Mesh

Sweep Mesh (Normal)

MIDAS/FX+

Mesh Improvement

Relaxation

Smoothing(Laplacian/Winslow/Angle)

Refinement(Full/Local)

Renumber IDs

Band-width Reduction (Band)

Profile Reduction (Skyline)

Wavefront Reduction (Frontal)

User (Coordinate-based)

MIDAS/FX+

Check & Arrange Normal

Mesh Verification

Verify

Free Edges/Faces

Find & Remove Duplicates

Check & Arrange Normal

Quality Assurance

Distortion Metric

Aspect Ratio

Skew Angle

Taper (2D)

Warpage (2D)

Twist

Collapse

Quality Contour

Collapsed Tetra(Near Zero Volume)

Twisted Penta

MIDAS/FX+

Pre-processing Input

Full Support of Load and Boundary Conditions

Loads and boundary conditions can be applied to geometry or mesh.

Loads and B.C.’s applied to geometry are independent of mesh.

They are valid even after shape evolution or remeshing!

Loads and boundary conditions can be verified and modified freely in

graphic window, table window, and property window.

Time/temperature/coordinate-varying loads can be defined in tables, and

displayed in various graphs.

Analysis Types

Linear Statics

Dynamics (Eigenvalue, Frequency/Transient-response, Buckling)

Heat Transfer

Nonlinear Material/Geometry Behaviors

Contact

MIDAS/FX+

Pre-processing Input

Reference Coord. Sys: Rectangular, Cylindrical, Spherical

Function-based Definition: Variable Condition (Load, Property, etc.)

Graphic Display: Symbol / Text, Contour Plot (Nodal, Elemental)

Table: Real Value

MIDAS/FX+

Function-based Definition

Variable Plate Thickness

Spatial FunctionRectangular, Cylindrical, Spherical

Non-spatial FunctionTime, Velocity, Temperature, etc.

T (Scale Factor) Base Function

MIDAS/FX+

Post-processing

Complete Support of Visualization and Interpretation

Flexible User-control on Legends, Colors, Fonts, and Magnification, etc.

Multiple Plots, Graphs, and Tables in Multiple Windows

Deformed Shape Combined with Undeformed Shape (incl. Mode Shape)

Local Plots defined by Geometrical Topology or User-selection

Contour Plots and Animations (AVI)

Clipping Planes and Slice Lines/Planes

Vector Plot (Variable/Constant Size)

Iso-value Lines (2D) and Surfaces (3D)

History Plots in Various Graphs and Animations (AVI)

Result Values in MS-Excel Compatible Tables

Screen-shots in WMF, BMP, PNG Picture Formats

State-of-the-art Reports Generated by XML and HTML

MIDAS/FX+

Post-processing

Works Tree

Graph

MS-Excel

MIDAS/FX+

Contour Plot

Combined Contour Plot with Iso-lines

(Shell+Rod <Section>)

Displacement Contour with Iso-lines

(Solid)

MIDAS/FX+

Deformed Shape

Displacement Contour

on Deformed Shape

(Large Deformation)

Deformed Shape with Iso-lines

MIDAS/FX+

Iso-surface & Line

Iso-surface

(Solid, Feature Edge)

Iso-line (Shell, Feature Edge)

MIDAS/FX+

Slice Plane & Line

Multiple Slice Planes (Solid)

MIDAS/FX+

Clipping Plane

Clipping Plane (Solid, Sequential Analysis)

Independent of Mesh

MIDAS/FX+

Transient Results

Contour Plot with Changing Models and/or Results

MIDAS/FX+

Mode Shape

13th Mode (Plate+Beam)

MIDAS/FX+

3D Gain Pattern (FDTD)

Yee Grid (SAM)

Iso View

Side View

MIDAS/FX+

Transient Response Graph

<Ex> Transient Response Analysis

(Acceleration)

<Ex> Transient Heat Transfer

(Temperature)

Transient Response ResultsAnimation with Input Function Graph

Result Graphs (24 Types)

Result Tables

MIDAS/FX+

Other Useful Features

Fast Pop-up Result

Contour Annotations

Full Plot by Mirroring

Symmetric Result

(Half/Quarter)

Vector Plot

MIDAS/FX+

Result Table and Graph

Table (MS-Excel Compatible)

Graph (25 Types)

MIDAS/FX+

Hexa Meshing (1)

Virtual Sub-division for Pseudo-Cartesian Geometry

2004.12

MIDAS/FX+

Hexa Meshing (2)

Many-to-Many Sweeping

One-to-One One-to-Many Many-to-Many

2004.12

MIDAS/FX+

Hybrid Meshing

Hexa Layer

(Offset)

Pyramid

Interface

Tetra Fill

(Auto)

Tetra Fill

(Auto)

Geometry Boundary

Hexa+Tetra Hybrid Meshing

2004.12

MIDAS/FX+

STL-based Meshing

STL (Facet)

Surface/Solid Mesh

2004.12

MIDAS/FX+

Others

Framework / User Interface- Works Tree, Property Window

CAD Interface- Translation Wizard, MCAD API

Geometry Clean-up- Merge Surface, Coincide Corner Vertices

Pre-processing Input & Interface- Linear (Static/Dynamic/Heat Transfer), Nonlinear, Contact- MIDAS, Nastran, Ansys

Report Generator - XML/HTML, MS-Office

Simulation Wizard

2004.12

Project Applications

(FEA Models)

MIDAS/FX+

Mechanical Components

MIDAS/FX+

Mechanical Components

MIDAS/FX+

Mechanical Components

MIDAS/FX+

Mechanical Components

MIDAS/FX+

Vessel – 2D Mesh

Uniform Thickness

on 3D Surface

Double Plate

• Thickness on 3D Surface

• Projection

MIDAS/FX+

Blast Furnace – 2D/1D Mesh

Tower Structure

(Beam+Truss)

Dust Catcher

Down Comer

MIDAS/FX+

Tunnel Lining – 2D Mesh

Offset Mesh

MIDAS/FX+

Anchorage – 2D Mesh

MIDAS/FX+

Pylon – 3D Mesh

MIDAS/FX+

PC Box – 3D/2D Mesh

Symmetrical Geometry (Quarter Model)Web (Mapped Mesh)

& Tendon

MIDAS/FX+

Tunnel Lining – 3D Mesh

MIDAS/FX+

Portal – 3D Mesh

MIDAS/FX+

Igloo Block – 3D Mesh

MIDAS/FX+

Rock Hill – 3D Mesh

MIDAS/FX+

MIDAS IT Co., Ltd.http://www.MidasUser.com

We Analyze and Design the Future!

excellent Information TechnologySponsored by

Ministry of Information and Communication, Korea