T-FLEX Analysis User Manual.pdf

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T-FLEX Analysis
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T -FLEX ANALYSIS
U SER M ANUAL
«Top Systems» Moscow, 2009
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© Copyright 2009 Top Systems
This Software and Related Documentation are proprietary to Top Systems. Any copying of
this documentation, except as permitted in the applicable license agreement, is expressly
prohibited.
The information contained in this document is subject to change without notice and should
not be construed as a commitment by Top Systems who assume no responsibility for any
errors or omissions that may appear in this documentation.
Trademarks:
T-FLEX Parametric CAD, T-FLEX Parametric Pro, T-FLEX CAD, T-FLEX CAD 3D, T-FLEX
CAD Analysis are trademarks of Top Systems.
Parasolid is a trademark of Siemens PLM Software.
All other trademarks are the property of their respective owners.
Edition 5
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Table of Contents
T ABLE OF C ONTENTS
Introduction ... ................................................................................................................................................... 6
About Mathematical Background of T-FLEX Analysis ... ............................................................................ 6
Technical Requirements.. .............................................................................................................................. 9
Computer Requirements.. ........................................................................................................................................ 9
T-FLEX Analysis System Installation .. ........................................................................................................ 9
Structural Organization of T-FLEX Analysis Application .... ..................................................................... 10
Steps of Structural Analysis ... ..................................................................................................................... 10
Quick Start ... ............................................................................................................................................... 11
Step 1. Preparing Spatial Solid Model of a Part .... ................................................................................................ 11
Step 2. Creating «Study»... .................................................................................................................................... 11
Step 3. Assigning Material ... ................................................................................................................................. 14
Step 4.1 Applying Boundary Conditions. Defining Restraints... ........................................................................... 16
Step 4.2 Applying Boundary Conditions. Defining Loads... ................................................................................. 18
Step 5. Running Calculations ... ............................................................................................................................. 19
Step 6. Analyzing Calculation Results ... ............................................................................................................... 20
Preparing Finite Element Model for Analysis (Preprocessor) ... ................................................................ 23
Types of finite-element models.... ............................................................................................................... 23
Purpose and Role of Meshes ... .................................................................................................................... 26
Types and Role of Boundary Conditions ... ................................................................................................. 28
Managing «Studies», Studies Management Commands ... .......................................................................... 29
General Properties of Studies ... ............................................................................................................................. 31
Defining Material .... .................................................................................................................................... 32
Constructing Mesh ... ................................................................................................................................... 33
Mesh Parameters ... ................................................................................................................................................ 35
Defining Restraints ... .................................................................................................................................. 39
Full Restraint... ...................................................................................................................................................... 39
Partial Restraint... .................................................................................................................................................. 39
Contact ... ............................................................................................................................................................... 41
Defining Loads... ......................................................................................................................................... 43
Mechanical Loads ... .............................................................................................................................................. 43
Force ... .................................................................................................................................................................. 43
Pressure ... .............................................................................................................................................................. 49
Centrifugal Force ... ............................................................................................................................................... 53
Acceleration .... ...................................................................................................................................................... 54
Bearing Force .... .................................................................................................................................................... 56
Torque ... ................................................................................................................................................................ 57
Thermal Loads ... ......................................................................................................................................... 58
Temperature .... ...................................................................................................................................................... 59
Heat Flux... ............................................................................................................................................................ 60
Heat Power .... ........................................................................................................................................................ 61
Convection .... ........................................................................................................................................................ 62
Radiation ... ............................................................................................................................................................ 63
Loads Compendium Table ... ....................................................................................................................... 64
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T-FLEX Analysis User Manual
Editing Loads and Restraints... .................................................................................................................... 65
Customization and Utility Commands .... .................................................................................................... 65
Working with the 3D Window when Preparing Study Elements .... ...................................................................... 67
Specifics of Working with a Parametric Model ... ................................................................................................. 67
Export ... ................................................................................................................................................................. 68
Processing Results (Postprocessor) .... ........................................................................................................... 69
General Principles of Working with Results ... ............................................................................................ 69
Settings and Service Commands of Calculation Results Window ... ........................................................... 71
Customizing Calculation Results Window... ......................................................................................................... 71
Color Scale Setup ... ............................................................................................................................................... 73
Use of Sensors for Analysis of Results .... ............................................................................................................. 76
Construction of Section Views... ................................................................................................................. 77
Generating Reports.... .................................................................................................................................. 80
Report Templates ... ............................................................................................................................................... 82
List of Tags for Generating Reports ... ................................................................................................................... 82
Tag... ...................................................................................................................................................................... 82
Tag value .... ........................................................................................................................................................... 82
Example of Interpreting a Result.... ............................................................................................................. 83
Static Analysis.... ............................................................................................................................................. 86
Details of Static Analysis Steps... ................................................................................................................ 87
Algorithm for Static Strength Evaluation Based on Modeling .... .......................................................................... 92
Settings of Linear and Nonlinear Statics Processor .... ................................................................................ 93
Optimization Problem .... ............................................................................................................................. 97
Problem of optimizing beam thickness .... ............................................................................................................. 97
Appendix (References).... .......................................................................................................................... 100
Properties of Structural Materials.... .................................................................................................................... 100
Volume Stress-strain State at a Point ..... ............................................................................................................. 103
Structure's Static Strength Assessment. Strength Theories ..... ............................................................................ 104
Buckling Analysis ..... .................................................................................................................................... 106
Details of Buckling Analysis Steps ..... ...................................................................................................... 107
Algorithm for Buckling Analysis Based on Modeling .... .................................................................................... 108
Buckling Analysis Processor Settings ..... .................................................................................................. 108
Frequency Analysis ..... ................................................................................................................................. 110
Details of Frequency Analysis Steps.... ..................................................................................................... 111
Frequency Analysis Processor Settings.... ................................................................................................. 112
Thermal Analysis..... ..................................................................................................................................... 114
Details of Thermal Analysis Steps ..... ....................................................................................................... 114
Thermal Analysis Processor Settings ..... ................................................................................................... 116
Examples of Thermal Analysis Studies..... ................................................................................................ 118
Thermal Analysis of a Cooling Radiator. Steady State ..... .................................................................................. 118
Calculating the Time of Heating up the Cooling Radiator. Transient Mode .... ................................................... 120
Calculating Time of Cooling Down the Cooling Radiator. Transient Mode.... ................................................... 121
Verification Examples ..... ............................................................................................................................. 123
Examples of Solving Studies in Statics .... ................................................................................................. 123
Bending of a Cantilevered Beam under a Concentrated Load..... ........................................................................ 123
Static Analysis of a Round Plate Clamped Along the Contour ..... ...................................................................... 124
Analysis of a Spherical Pressure Vessel..... ......................................................................................................... 125
Square Plate Subjected to Force at Center.... ....................................................................................................... 127
Cylindrical Reservoir with Walls of Constant Thickness.... ................................................................................ 128
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