第1页 / 共230页
第2页 / 共230页
第3页 / 共230页
第4页 / 共230页
第5页 / 共230页
第6页 / 共230页
第7页 / 共230页
第8页 / 共230页
patran_2012_doc_user.pdf
Preface
About this Book
How the Book is Organized
Case Studies
To See How To:
Go To:
Model
page 15
page 17
page 20
page 22
Analysis
page 26
page 26
Results
page 27
page 28
To See How To:
Go To:
Model
page 86
page 88
page 91
Analysis
page 97
Results
page 98
To See How To:
Go To:
Model
page 162
page 165
Analysis
page 166
Results
page 169
Other Books
About MSC
Technical Support
Personal Information
System Information
Product Information
Telephone and Fax:
E-mail:
MSC Web Site
MSC Institute of Technology
How to Register
MSC Partners
CAD Partners
Hardware Partners
Analysis Partners
Documentation Conventions
Chapter 1: Introduction
Virtual Product Development
VPD and Simulation Software
Interfacing with CAD and Vertical Applications
A First Look at Patran
Task Interface
Tools and Applications
Data Management
A Link to Other Software
Profile of a Simulation Project
Simulation Tasks and Patran
Simulating a Product Design
Turning Product Designs into Geometry Models
Meshing and Creating Elements
Modeling Materials
Simulating Forces and Loads
Analyzing the Model with Environmental Loads
Selecting an Analysis Code
Tailoring the Model for a Selected Analysis Code
Running a Finite Element Analysis
Compiling the Analysis Results
Visualizing Numerical Results
The Sequence of Tasks
A Case Study of an Annular Plate
Problem Description
Figure 1-1 Representation of the Annular Plate
Table 1-1 Dimensions and Properties of the Annular Plate
Conceptual Model
Figure 1-2 Patran Finite Element model of Annular Plate
Theoretical Solution
Case Study Task Outline
Figure 1-3 Case Study Task Map
Analysis Procedure
Setup the Analysis Project
Build the Geometry
Create the Finite Elements
Equivalencing the Mesh
Model the Materials
Define Element Properties
Simulate the Loads and Boundary Conditions (LBC)
Create MSC Nastran Input File
Retrieve the Analysis Results
Results Postprocessing
Chapter 2: Fundamentals
Starting and Exiting Patran
A Tour of the Patran Interface
How to Get Things Done
Working with Viewports
2. Click and drag the viewport to a new location.
3. Window machines allow for double clicking to fit the graphics window.
2. When a two-headed arrow appears, click and drag the viewport to the desired size.
2. Enter a name for the new viewport in the New Viewport Name textbox, and click Apply.
The Menu Bar
File
Group
Viewport
Viewing
Viewing Size and Positions on the Toolbar
More About Viewing Rotation
Display
Preferences
Tools
Using Lists
Help
Application Buttons and Application Forms
Application
Function
Application Forms
The Toolbar
System Functions
Mouse Functions
Icon Name
UNIX Icon
Function
Viewing Functions
Icon Name
UNIX Icon
Function
Icon Name
UNIX Icon
Function
Display Functions
Icon Name
UNIX Icon
Function
Icon Name
UNIX Icon
Function
Home (Windows only)
Heartbeat
Command Line and History List Area
Picking and Selecting
Select Menus
Icon
Function
Multilevel Select Menus
Appearance of the Select Menu
2. Click and drag the menu to a new location.
2. To switch to a horizontal set of icons, click and drag the Select menu to the toolbar area or to the History/Command Line area.
Picking an Entity off the Screen
Enclosing Entities
2. First move the cursor into the application form databox and click.
3. Next move the cursor into the viewport. Click once to define the first vertice of the polygon.
2. Click and drag the cursor arrow to define an enclosing rectangle.
Selecting Individual Entities
2. Point the cursor arrow at the desired object and click.
2. Click in the application form databox and then move the cursor into the viewport. Point the cursor at the desired object and click.
Clearing Selected Entities
Selecting All Entities
Changing the Picking Operation
2. Click on the Show Picking Icons checkbox.
3. Quit and restart Patran.
4. Resume the Application that brings up your Select menu.
5. Click on one of the other Picking Operation icons to change the Picking mode.
Chapter 3: The Database
Creating a Database
2. Specify the filename for the new Patran database.
3. Select the directory in which the database will reside (located at the bottom of the form).
Specifying Model Parameters
Global Model Tolerance Definition
Analysis Code and Analysis Type
2. Use the Analysis Type drop-down menu to assign the type of analysis.
Importing CAD Models
2. On the Object drop-down menu, select Model.
3. Specify a Source from the Source drop-down menu.
4. Click Apply.
Import Options
Chapter 4: Geometry Modeling
Overview of Geometry
Options for Starting the Geometry Model
Model Building Tasks
Basic Concepts and Definitions
Parametric Space and Connectivity
Patran’s Mapping Functions Translate Between Parametric and XYZ Space
Figure 4-1 Mapping a surface from parametric space to global XYZ space
Connectivity
Figure 4-2 Two possible connectivities for a surface
Geometric Entities
Points
Curves
Surfaces
Solids
Planes and Vectors
Coordinate Systems and Frames
Figure 4-3 Coordinate Systems
Subentities
Congruency
Creating Geometry
Using the Geometry Application Form
2. Select an Action/Object/Method combination from the drop-down menus at the top of the Geometry application form.
Actions
Objects
Methods
Sample Geometry Form
Creating Trimmed Surfaces
Creating B-Rep Solids
Working with Imported CAD Models
Remove Excess Detail
Add Missing Surfaces
Repair Incomplete Entities
Checking the Geometry
Ensuring Topological Congruency
Figure 4-4 Congruent geometry example
Finding Incongruencies
Correcting Incongruencies
Figure 4-5 Noncongruent geometry with missing vertices
Avoiding Small Angles at Surface Corners
Figure 4-6 Surfaces with and without sharp corners
Verifying and Aligning Surface Normals
Additional Considerations
A Case Study of a Lug
Problem Description
Figure 4-7 Loads on the Lug
Table 4-1 Properties of the Lug
Conceptual Model
Analysis Procedure
Setup the Analysis Project
Import the Geometry
Create a New Coordinate System
Create the Finite Elements
Model the Materials
Define Element Properties
Create a PCL Function Representing the Loading Condition
Simulate the Loads and Boundary Conditions (LBC)
Run MD Nastran
Results Postprocessing
Chapter 5: Finite Element Meshing
Overview of Meshing
Figure 5-1 A geometry model versus a finite element representation
Finite Element Modeling Capabilities
Basic Concepts and Definitions
A Look at Finite Element Types
Mesh Generation Techniques
IsoMesh
Figure 5-2 Example of solid IsoMesh
Paver
Figure 5-3 Example of Paver mesh technique
Auto TetMesh
Figure 5-4 Auto TetMesh technique
2-1/2D Meshing
Mesh Density
Mesh Seeds
Figure 5-5 A mesh transition using mesh seeds
Adjacent Meshes
Figure 5-6 Mesh path examples
Global Edge Length
Equivalencing
Optimizing
Figure 5-7 A Sparse, Symmetric Matrix
Creating a Finite Element Model
The Finite Element Application Form
2. Select an Action, Object, and Type using the drop-down menus at the top of the form.
Actions
Objects
Types
Sample Finite Element Forms and Subforms
Create/Mesh/Solid Form
IsoMesh Parameters Subordinate Form
Sample Create/Mesh Seed/Two Way Bias
Direct Finite Element Modeling
Checking the Finite Element Model
2. Select the corresponding Object and Method for checking an aspect of your finite element mesh.
Element Shape Tests
Other Element Tests
Options When Tests Fail
Remesh the Model
2. Re-create the mesh by selecting from the Create/Mesh family of options described above.
Repair Individual Elements
Check your Tolerance
Chapter 6: Material Modeling
Overview of Materials
Basic Concepts and Definitions
Homogenous, Composite, and Constitutive Material Models
Homogenous Material Types
Type (Object)
Structural Characteristics
Composite Material Types
Method
Variations
Algorithm
Intended Application
Constitutive Models
Material Property Definitions
Material Property Fields
Creating Material Property Models
The Materials Application Form
2. Select an Action, Object, and Method from the drop-down menus at the top of the form.
Actions
Objects
Methods
Sample Materials Forms
Sample Manual Input Form
Sample Input Options Subform
Sample Constitutive Model Status form
Checking the Material Model
2. With the Method set to Tabular, select one of your material models from the Existing Materials listbox.
3. Select either Show Material Stiffness or Show Material Compliance to display the stiffness or compliance matrix.
Chapter 7: Loads and Boundary Conditions
Overview of Forces and Loads
Figure 7-1 Model with point load and displacement boundary conditions
The Fields and Load Cases Applications
Figure 7-2 Three LBCs-related applications
Basic Concepts and Definitions
Analysis Types and LBCs
Structural Loads and Boundary Conditions
Thermal Loads and Boundary Conditions
Fluid Dynamics Loads and Boundary Conditions
Load Cases
Fields
Applying Loads and Boundary Conditions
The LBCs Application Form
2. Choose an action, object, and type combination from the pop-up menus.
Actions
Objects
Analysis Type
LBC Object (Set Type)
Types
Sample LBCs Forms
Sample Loads/BCs Input Form
Widgets
Sample Input Data Subform
Widgets
Sample Select Application Region Subform
Widgets
Defining Load Cases
The Load Cases Application Form
2. Select an Action from the top of the application form.
Actions
Sample Load Cases Form
Widgets
Using Fields
The Fields Application Form
2. From the drop-down menus, select an Action, Object, and Method.
Actions
Objects
Field Type
Description
Methods
Field Type
Description
Sample Fields Form
Widgets
Verifying Your LBC Model
Plot Markers
Figure 7-3 Examples of Plot Markers for LBCs
Figure 7-4 Display menu for Loads/BCs/El.Props
Plot Contours
2. From the Object drop-down menu, select the load/boundary condition you wish to plot.
Show Load/BC Data in Table Format
Figure 7-5 Numerical display of LBCs data from Show Tabular action
A Case Study of a Coffee Cup
Problem Description
Analysis Procedure
Setup the Analysis Project
Import the Geometry
Plot the Loads and Boundary Conditions (LBC)
Assign a New Pressure Load to the Model
Create MSC Nastran Input File
Retrieve the Analysis Results
Results Postprocessing
Chapter 8: Element Properties
Overview of Element Properties
Basic Concepts and Definitions
Element Types
Dimension
Type
Beam Modeling and the Beam Library
Element Combinations
Dimension
Type
Option 1
Option 2
Topology
Assigning Element Property Sets to the Model
Effect of Changing Analysis Code or Type
Element Property Types, Names, and Numbers
Element Property Fields
Viewing Element Property Sets
Show/Marker Plot
Show/Scalar Plot
Show/Tabular Plot
Creating Element Properties
The Element Properties Application Form
2. Select an Action, Dimension, and Type combination at the top of the application form.
Actions
Dimensions and Types
Dimension
Type
Sample Element Properties Form
Sample Input Properties Subform
Chapter 9: Running an Analysis
Overview of the Analysis
Brief Overview of Analysis Steps
Basic Concepts and Definitions
Analysis Codes
Application Preferences
Solution Types
Desired Results
Setting Up the Analysis
The Analysis Application Form
2. Select an Action, Object, and Method from the top of the application form.
3. Check the analysis code and analysis type.
Actions
Objects
Methods
Sample MSC Nastran Analysis Application Form
Sample Analysis Application form
Sample MSC Nastran Solution Type Subform
Running the Analysis
2. Select the Apply button.
2. Click on the Apply button
.Monitoring the Analysis
Retrieving the Analysis Results
2. Click on the Select Results File unfold box.
Actions
Objects
Methods
Verifying the Analysis
How to Resolve Results Problems
Chapter 10: Postprocessing Results
Overview of Results
Basic Concepts and Definitions
Types of Analysis Results
Figure 10-1 Color fringe plot of scalar result values
Figure 10-2 Deformed shape plot of vector quantities
Result Cases
Graphical Displays of Result
Postprocessing Results
The Results Application Form
2. Select an Action and Object from the drop-down menus at the top of the form.
Actions
Objects
Plot
Description
Sample Basic Quick Plot Results Display
Sample Deformation Plot
2. Select a Results Case from this listbox.
3. Select a result associated with the Results Case from this listbox.
4. Press the Apply button on the bottom of the form.
Using Other Results Display Options
Results Options
Index
Patran 2012
User’s Guide
Corporate
Europe
Asia Pacific
MSC.Software Corporation
2 MacArthur Place
Santa Ana, CA 92707 USA
Telephone: (800) 345-2078
Fax: (714) 784-4056
MSC.Software GmbH
Am Moosfeld 13
81829 Munich, Germany
Telephone: (49) (89) 43 19 87 0
Fax: (49) (89) 43 61 71 6
MSC.Software Japan Ltd.
Shinjuku First West 8F
23-7 Nishi Shinjuku
1-Chome, Shinjuku-Ku
Tokyo 160-0023, JAPAN
Telephone: 0120-924-832 (toll-free; available in Japan only
03-6911-1222 (For mobile phones)
Fax: (81) (3)-6911-1201
Worldwide Web
www.mscsoftware.com
Support
http://www.mscsoftware.com/Contents/Services/Technical-Support/Contact-Technical-Support.aspx
Disclaimer
This documentation, as well as the software described in it, is furnished under license and may be used only in accordance with
the terms of such license.
MSC.Software Corporation reserves the right to make changes in specifications and other information contained in this document
without prior notice.
The concepts, methods, and examples presented in this text are for illustrative and educational purposes only, and are not
intended to be exhaustive or to apply to any particular engineering problem or design. MSC.Software Corporation assumes no
liability or responsibility to any person or company for direct or indirect damages resulting from the use of any information
contained herein.
User Documentation: Copyright 2012 MSC.Software Corporation. Printed in U.S.A. All Rights Reserved.
This notice shall be marked on any reproduction of this documentation, in whole or in part. Any reproduction or distribution of this
document, in whole or in part, without the prior written consent of MSC.Software Corporation is prohibited.
The software described herein may contain certain third-party software that is protected by copyright and licensed from
MSC.Software suppliers. Contains IBM XL Fortran for AIX V8.1, Runtime Modules, (c) Copyright IBM Corporation 1990-2002,
All Rights Reserved.
MSC, MSC Nastran, MD Nastran, MSC Fatigue, Marc, Patran, Dytran, and Laminate Modeler are trademarks or registered
trademarks of MSC.Software Corporation in the United States and/or other countries.
NASTRAN is a registered trademark of NASA. PAM-CRASH is a trademark or registered trademark of ESI Group. SAMCEF is
a trademark or registered trademark of Samtech SA. LS-DYNA is a trademark or registered trademark of Livermore Software
Technology Corporation. ANSYS is a registered trademark of SAS IP, Inc., a wholly owned subsidiary of ANSYS Inc. ACIS is a
registered trademark of Spatial Technology, Inc. ABAQUS, and CATIA are registered trademark of Dassault Systemes, SA.
EUCLID is a registered trademark of Matra Datavision Corporation. FLEXlm is a registered trademark of Flexera Software. HPGL
is a trademark of Hewlett Packard. PostScript is a registered trademark of Adobe Systems, Inc. PTC, CADDS and
Pro/ENGINEER are trademarks or registered trademarks of Parametric Technology Corporation or its subsidiaries in the United
States and/or other countries. Unigraphics, Parasolid and I-DEAS are registered trademarks of UGS Corp. a Siemens Group
Company. All other brand names, product names or trademarks belong to their respective owners. METIS is copyrighted by the
regents of the University of Minnesota. A copy of the METIS product documentation is included with this installation. Please see
"A Fast and High Quality Multilevel Scheme for Partitioning Irregular Graphs". George Karypis and Vipin Kumar. SIAM Journal
on Scientific Computing, Vol. 20, No. 1, pp. 359-392, 1999.
P3:V2012:Z:Z:Z:DC-USR-PDF
C o n t e n t s
MSC Patran User’s Guide
1
Preface
Introduction
2
4
4
4
2
2
Virtual Product Development
VPD and Simulation Software
Interfacing with CAD and Vertical Applications
A First Look at Patran
Task Interface
Tools and Applications
5
Data Management
A Link to Other Software
Profile of a Simulation Project
Simulation Tasks and Patran
8
The Sequence of Tasks
A Case Study of an Annular Plate
Problem Description
Conceptual Model
10
Theoretical Solution
Case Study Task Outline
13
Analysis Procedure
11
9
9
9
5
6
6
2
Fundamentals
33
32
Starting and Exiting Patran
A Tour of the Patran Interface
How to Get Things Done
34
Working with Viewports
The Menu Bar
Application Buttons and Application Forms
Application Forms
39
The Toolbar
34
39
35
38
14
MSC Patran User’s Guide
40
41
42
45
System Functions
Mouse Functions
Viewing Functions
Display Functions
Home (Windows only)
Heartbeat
Command Line and History List Area
Picking and Selecting
48
47
47
48
3
The Database
56
Creating a Database
Specifying Model Parameters
Global Model Tolerance Definition
Analysis Code and Analysis Type
Importing CAD Models
Import Options
59
60
57
57
57
4
Geometry Modeling
62
64
62
Overview of Geometry
Options for Starting the Geometry Model
Model Building Tasks
Basic Concepts and Definitions
Parametric Space and Connectivity
64
Connectivity
Geometric Entities
70
Subentities
Creating Geometry
Using the Geometry Application Form
Sample Geometry Form
Creating Trimmed Surfaces
75
Creating B-Rep Solids
Working with Imported CAD Models
Remove Excess Detail
Add Missing Surfaces
Repair Incomplete Entities
Checking the Geometry
77
78
76
76
71
73
74
62
63
63
71
76
CONTENTS
15
80
81
78
Ensuring Topological Congruency
Avoiding Small Angles at Surface Corners
Verifying and Aligning Surface Normals
Additional Considerations
A Case Study of a Lug
Problem Description
Conceptual Model
Analysis Procedure
84
84
83
82
83
5
Finite Element Meshing
102
106
109
104
104
108
105
103
109
110
Overview of Meshing
Finite Element Modeling Capabilities
Basic Concepts and Definitions
A Look at Finite Element Types
Mesh Generation Techniques
IsoMesh
107
Paver
Auto TetMesh
2-1/2D Meshing
Mesh Density
Mesh Seeds
Adjacent Meshes
Global Edge Length
Equivalencing
Optimizing
Creating a Finite Element Model
115
The Finite Element Application Form
Sample Finite Element Forms and Subforms
IsoMesh Parameters Subordinate Form
Sample Create/Mesh Seed/Two Way Bias
121
Direct Finite Element Modeling
Checking the Finite Element Model
Element Shape Tests
Other Element Tests
Options When Tests Fail
122
123
112
115
110
111
123
114
117
119
120
122
6 Material Modeling
Overview of Materials
126
16
MSC Patran User’s Guide
127
Basic Concepts and Definitions
Homogenous, Composite, and Constitutive Material Models
129
Material Property Definitions
Creating Material Property Models
The Materials Application Form
131
Sample Materials Forms
Checking the Material Model
135
130
130
127
7
Loads and Boundary Conditions
141
139
142
142
Overview of Forces and Loads
138
The Fields and Load Cases Applications
Basic Concepts and Definitions
140
140
Analysis Types and LBCs
Load Cases
141
Fields
Applying Loads and Boundary Conditions
The LBCs Application Form
144
Sample LBCs Forms
Defining Load Cases
148
The Load Cases Application Form
149
Sample Load Cases Form
Using Fields
The Fields Application Form
154
Sample Fields Form
Verifying Your LBC Model
Plot Markers
Plot Contours
Show Load/BC Data in Table Format
A Case Study of a Coffee Cup
Problem Description
Analysis Procedure
156
158
160
161
151
151
148
156
159
160
8
Element Properties
Overview of Element Properties
172
CONTENTS
17
174
175
175
186
174
173
173
173
Basic Concepts and Definitions
Element Types
Beam Modeling and the Beam Library
Element Combinations
Assigning Element Property Sets to the Model
Effect of Changing Analysis Code or Type
Element Property Types, Names, and Numbers
175
Element Property Fields
Creating Element Properties
The Element Properties Application Form
179
Sample Element Properties Form
180
Sample Input Properties Subform
177
177
9
Running an Analysis
183
182
182
183
Overview of the Analysis
Brief Overview of Analysis Steps
Basic Concepts and Definitions
183
Analysis Codes
Application Preferences
183
Solution Types
184
Desired Results
Setting Up the Analysis
The Analysis Application Form
Sample MSC Nastran Analysis Application Form
Running the Analysis
.Monitoring the Analysis
Retrieving the Analysis Results
Verifying the Analysis
How to Resolve Results Problems
189
190
193
191
193
185
185
10 Postprocessing Results
196
Overview of Results
Basic Concepts and Definitions
197
Types of Analysis Results
Result Cases
Graphical Displays of Result
198
199
197
18
MSC Patran User’s Guide
200
Postprocessing Results
The Results Application Form
Sample Basic Quick Plot Results Display
Sample Deformation Plot
Using Other Results Display Options
200
203
201
204
相关推荐
2023年江西萍乡中考道德与法治真题及答案.doc
2012年重庆南川中考生物真题及答案.doc
2013年江西师范大学地理学综合及文艺理论基础考研真题.doc
2020年四川甘孜小升初语文真题及答案I卷.doc
2020年注册岩土工程师专业基础考试真题及答案.doc
2023-2024学年福建省厦门市九年级上学期数学月考试题及答案.doc
2021-2022学年辽宁省沈阳市大东区九年级上学期语文期末试题及答案.doc
2022-2023学年北京东城区初三第一学期物理期末试卷及答案.doc
2018上半年江西教师资格初中地理学科知识与教学能力真题及答案.doc
2012年河北国家公务员申论考试真题及答案-省级.doc
2020-2021学年江苏省扬州市江都区邵樊片九年级上学期数学第一次质量检测试题及答案.doc
2022下半年黑龙江教师资格证中学综合素质真题及答案.doc
