TrueGrid® Essentials Training Outline
I. Overview Of TrueGrid
- A. Documentation and Hotline
- B. Computing Environment
- C. Structures and Fluids
- D. Interactive and Batch Mode
- E. Interrupt/Resume
- F. Files
- G. Help and Menu Windows
- H. Control Phase
- I. Part Phase
- J. Merge Phase
- K. Information Commands
- L. Command Syntax
- M. Parameters
- N. Expressions ( "[...]" )
- O. Error and Warning Messages
- P. Extensive UNDO (HISTORY, ACTCMD, DECMD, UPDATE)
II. Graphical User Interface
- A. Text Window
- B. Menus
- C. Dialogue Window (DIAL)
- D. Help Window (HELP)
- E. Physical Window
- F. Computational Window
- G. Environment Window
- H. Pop-up Windows
- I. Point-and-Click Mouse Controls
- J. Point-and-Click Coordinates
- K. Grabbing Text
- L. Function Keys
- M. Distance, Angle, and Transform
III. TrueGrid Geometry
- A. 2D Curves (LD, APLD, LCD, NDD)
- B. 3D Curves (CURD, RMSEG, DCD, ACD, RCD, RACD)
- C. Surfaces (SD, DSD, ASD, RSD, ANSD, LASD, ACCURACY)
- D. Curve and Surface Fitting
IV. Importing CAD/CAM Geometry
- A. Reading IGES Data (IGES, IGESFILE)
- B. IGES Binary Files (SAVEIGES, USEIGES)
- C. NURBS (NURBS, NURBSD)
- D. Planes (IGESP, IGESPD)
- E. Other Surfaces (IGESS, IGESSD)
- F. 3D Curves and Composites (IGC, IGESCD)
- G. Trimmed Surfaces
- H. Levels and Groups (DLV, ALV, RLV, DGRP, AGRP, RGRP)
V. Initializing A New Part
- A. BLOCK and CYLINDER Commands
- B. Point-and-Click Vertex Placement
- 1. Move single closest vertex - automatic selection
- 2. Select set of vertices - moves center of set
- 3. Screen plane
- 4. Coordinate constraint movement - depends on system
- 5. Front view constraint wit cross hairs
- 6. Attach to another node
- 7. Project to a curve, edge, or surface
- C. PBS - Place A Vertex Onto A Surface Or Curve
- 1. Dialogue box with options
- 2. Attach without options
- D. TR - Transform The Initial Coordinates
- E. CUR, CURF, CURE, and EDGE - Placement Along A 3D Curve
- 1. Dialogue for each
- 2. Attach means CUR or EDGE
- F. PATCH - Face Mapped to 4-edged Surface
- G. SPLINT - Cubic Spline Edges
- H. BB command - Block Boundary Interface
VI. Computational Mesh
- A. Regions
- B. Highlightig
- C. Multiple Regions Selection
- D. Multiple Faces Selection
- E. Multiple Edges Selection
- F. Multiple Vertices Selection
- G. Progressions
- H. Shells
- I. Holes
- J. Beams
- K. Sets
- L. Graphics Control
- M. Deleting A Region (DE, DEI)
- N. Peeling (RG, ARG, RRG, DARG, DARGED)
- O. Inserting a New Region (INSPRT)
VII. Projection Method
- A. Smooth Surfaces
- B. Piecewise Smooth Surfaces
- C. Surface Concatenation
- D. Intersection of Three Surfaces
- E. Intersection of Two Surfaces
- F. Intersection of More Than Three Surfaces
- G. Projection Onto a Single Surface With Low Curvature
- H. Projection Onto a Single Surface With High Curvature
- I. Nodal Distribution Along Edges (RES, DRS, NDS, AS)
VIII. Interpolation And Smoothing
- A. Linear, Bi-Linear, and Tri-linear Interpolation
- B. Default Interpolation - Modification
- 1. Edges
- 2. Faces
- 3. Volumes
- C. Multiple Regions Interpolated Together (LIN, LINI)
- D. Transfinite Interpolation (TF, TFI)
- E. Equipotential Relaxation (RELAX, RELAXI)
- F. Thomas-Middlecoff Elliptic Solver (THE, TMEI)
IX. Command Hierarchy
- A. Commands Are Not Executed in the Order They Are Entered
- B. Each Change to the Mesh Requires That the Mesh Be Rebuilt
- C. Must Tell TrueGrid to Draw Before it Rebuilds the Mesh
- D. Vertices Are Positioned First
- E. Edges Are Placed Between the Vertices
- F. Faces Are Then Placed Between The Edges
- G. Interior Nodes Are Interpolated Last
- H. Complex Order of Events Known as the Hierarchy
X. Special Elements and Conditions
- A. B Command - Constraint Nodes
- B. Nodal, Facial, and Volume Conditions in the Part Phase
- C. Sets in the Part Phase (NSET)
- D. Sets in the Merge Phase (NSET)
- E. Nodal, Facial, and Volume Conditions in the Merge Phase
- F. Manipulating Existing Conditions (INFOL, RML, RSL)
- G. Displaying Conditions (LABELS, CONDITION)
- H. Orientations (ORPT, N, OR)
- I. Materials (MATE, MT)
- J. Contact/Sliding Interfaces (SID, SI)
- K. Joints and Nodal Shared Constraints (JD, JT)
- L. Shell and Brick Transition Elements (TRBB)
- M. Point Masses, Springs, and Dampers
- N. Beams in the Merge Phase (BM)
XI. Importing A Mesh
- A. READMESH Command (NASTRAN, NEUTRAL, & DYNA3D)
- B. Information on the Mesh
- C. Changing/Translating the Mesh/Conditions/Loads/Properties
XII. Transformations
- A. Rotations
- B. Translations
- C. Scaling
- D. Complex Transformations
XIII. Part Duplication
- A. Local Transformation Definitions
- B. Local Replications
- C. Global Transformations
- D. Global Replications
XIV. Output and Analysis Options
- A. Output
- B. Material Models and EOS
- C. Analysis
XV. Mesh Diagnostics
- A. Part Information
- B. Mass and Moments
- C. Mesh Quality Check
- D. Special Conditions Displayed
XVI. Node Merging and Writing The Output File
- A. Merging Commands - When Entering Merge Phase (T, TP, STP)
- B. Special Tolerance for Nodes Within a Part (PTOL)
- C. Special Tolerance Between Parts (BPTOL)
- D. Sliding Interfaces and Joints Do Not Merge
- E. Free Edges and Free Surfaces and Other Diagnostics
- F. Dummy Sliding Interface Avoids Merging
- G. Write the Output File (WRITE)