Section 2 Nastran Preference Enhancements презентация

(SOL 700)
Double Precision Support for Input file Import and Export
External Superelement
System Cell
Preserve Nastran Names

Defaults
Quick Topology Optimization
PCOMPG Composite Properties
SOL 600
DRA to DBALL

the generation, translation, and results processing of MSC.Nastran Spot Weld (CWELD) and fastener (CFAST) connectors
These elements are added as a new FEM entity type throughout the system
Seamless integration to the group, graphics/picking, list-processing, and results sub-systems
For more detailed information and workshop, see Section 8: CWELD and CFAST Connectors

node or point in space that is to be projected onto the two surface patches of the connector to determine the end points, GA and GB
The point specified for the Projection method is projected onto each surface patch
Nodes are generated at those locations, and the Pierce Nodes, GA and GB, are assigned the new node ids.
Axis: specifies nodes directly for GA and GB
Nodes specified for the Axis method define the GA and GB piercing nodes directly

connectivity are supported
Elem to Elem (ELEMID and ALIGN formats)
Patch to Patch (ELPAT format)
Prop to Prop (PARTPAT format)
Node to Node (GRIDID format)

fasteners (CFASTs) is consistent with that described previously for the Spot Weld (CWELD) Connector
There are two primary differences
CFAST only has two formats, PROP and ELEM
Analogous to PARTPAT and ELPAT of CWELD respectively
Other than the diameter specification, the PFAST properties are completely different than PWELD
D The diameter (> 0.0, required)
MCID The element stiffness coordinate system (>= -1, default -1)
MFLAG = 0, MCID is relative (default) = 1, MCID is absolute
KTi Stiffness values in directions 1-3 (real, required)
KRi Rotational stiffness values in directions 1-3 (default 0.0)
MASS Lumped mass of the fastener (default 0.0)

method
Connectivity type – Prop to Prop
Property set pcomp.11 to innen
Diameter - 4

Node 2019

Surface Patch A w/ Property pcomp.11

Surface Patch B w/ Property innen

method
Connectivity type – Prop to Prop
Property set pcomp.11 to innen
Diameter - 4

Spot Weld Connector created

: innen
PSHELL 1 2 7.5 2 2
.
.
$ Elements and Element Properties for region : pcomp.11
$ Composite Property Record created from P3/PATRAN composite material
$ record : pcomp.11
$ Composite Material Description :
PCOMP 11 -1.5 0. 0. SYM
111 .125 45. YES 111 .125 90. YES
111 .125 -45. YES 111 .125 -45. YES
111 .125 0. YES 111 .125 45. YES
111 .125 0. YES 111 .125 45. YES
111 .125 0. YES 111 .125 0. YES
111 .125 -45. YES 111 .125 0. YES
.
.
$ Connector elements and properties for region : prop_2019
PWELD 8 1 4. OFF SPOT
CWELD 1 8 2019 PARTPAT 2020 2021
1 11
.
.
GRID 2019 95. 25. 104.75
GRID 2020 95. 25. 102.75
GRID 2021 95. 25. 95

Automatic creation of GA & GB

MSC.Nastran
Lagrange Rigid Element
MSC.Patran 2005 supports the new Lagrange Rigid Element type
MSC.Patran 2005 will also support the new rigid element bulk data entries
RBAR1
RTRPLT1
RJOINT

command via the solution parameters form
LINEAR: selects the linear elimination method
LAGR: select the Lagrange multiplier method
LGELIM: select the Lagrange multiplier method with elimination
For solution types 101, 103, 105, 106, 129, and ultimately 400
Add support of the Thermal Expansion Coefficient (ALPHA) value to applicable existing MPC definitions
RBAR, RBE1, RBE2, RBE3, RROD and RTRPLT
Add new rigid element definitions
RBAR1, RTRPLT1 and RJOINT
ALPHA constant is also added for RBAR1 and RTRPLT1

Direct Text Input for Executive Control
CEND
SEALL = ALL
SUPER = ALL
TITLE = MSC.Nastran job created on 14-Jan-04 at 17:30:07
ECHO = NONE
RIGID = LINEAR
$ Direct Text Input for Global Case Control Data
SUBCASE 1
$ Subcase name : Default
SUBTITLE=Default
DISPLACEMENT(SORT1,REAL)=ALL
SPCFORCES(SORT1,REAL)=ALL
STRESS(SORT1,REAL,VONMISES,BILIN)=ALL
BEGIN BULK
PARAM POST 0
PARAM AUTOSPC YES
PARAM PRTMAXIM YES
$ Direct Text Input for Bulk Data
$ Elements and Element Properties for region : prop
PSHELL 1 1 .08 1 1
$ Pset: "prop" will be imported as: "pshell.1"
CQUAD4 1 1 1 2 8 7
CQUAD4 2 1 2 3 9 8

RIGID= LINEAR is the default for all solution sequences except SOL 400. For SOL 400, the default is RIGID=LAGRAN.

new MPC definitions
RBAR, RBE1, RBE2, RBE3, RRPD, RTRPLT, RBAR1 & RTRPLT1

.
.
.
CQUAD4 48 1 63 64 70 69
CQUAD4 49 1 64 65 71 70
CQUAD4 50 1 65 66 72 71
$ Referenced Material Records
$ Material Record : alum
$ Description of Material : Date: 14-Jan-04 Time: 17:28:52
MAT1 1 1.+7 .3
$ Multipoint Constraints of the Entire Model
$ ID conflict : the PATRAN MPC ID was 1
RBE2 51 999 123 6 12 18 24 30
36 37 43 49 55 61 67 13.1-6
$ Nodes of the Entire Model
GRID 1 0. 0. 0.
GRID 2 2. 0. 0.
GRID 3 4. 0. 0.
.
.
.

“Define Terms” form for each look identical, except RJOINT does not have a Thermal Expansion Coefficient databox

delivered in the MSC.Nastran user interface

MSC.Nastran Preference SOL 700

Pref materials

MSC.Nastran Preference SOL 700

101 – Linear Static
SOL 700, 106 – NonLinear Static
SOL 700, 109 – Direct Transient Response
SOL 700, 129 – NonLinear Transient
Subcase Parameters
Contact Table
Access Results

MSC.Nastran Preference SOL 700

support for TIC3 and WALL lbcs
Q1-17075305 - translator support for DAMPGBL - Dynamic Relaxation
Q1-17075308 - translator support for sol 700 PARAM using other solution
Q1-17075311 - translator support for extra data in CDAMPn and CELASn
Q1-17075314 - translator support for extra data in contact table BCTABLE
Q1-17075317 - Some of the sol 700 lbcs are not translated
Q1-17075320 - translator support for the lsdyna materials MATDxxx

MSC.Nastran Preference SOL 700

writer have been enhanced to support the double precisions for all the FEM related data that the accuracy of Nastran results is highly dependent of
All the values of the FEM data were persisted in single precision in the prior releases of Patran
Patran 2005 will retain all the original number of significant digits during importing and exporting FEM related data for the following FEM related data
Grid coordinates
MPC coefficients
Coordinate coefficient
The number of significant digits maintained is limited to those that fit within a 16 character field

the FEM related data such as grid coordinates, MPC coefficients and coordinate coefficient from MSC.Nastran database via MscNastranDbServer has been updated to retain the double precisions of the values of the FEM data
The Nastran input file writer, the modules of retrieving the FEM related data such as grid coordinates, MPC coefficients and coordinate coefficient from Patran database has been updated to retain the double precisions of the values of the FEM data

data entries has been updated to write out the FEM data into the large fields of MSC.Nastran input deck in double precisions
These updates include GRID, MPC, and CORD
The precision is the maximum possible within the constraints of a 16 character field
Allowing for the sign, decimal, and exponent data
The exponent shall use a “D” to denote double precision

(16 digits)

.
.
GRID* 101 1992.38939617492174.311485495328* 43
GRID* 102 1992.38939617492174.311485495328* 44
GRID* 103 1992.38939617492174.311485495328* 45
GRID* 104 1992.38939617492174.311485495328* 46
GRID* 105 1992.38939617492174.311485495328* 47
GRID* 106 1992.38939617492174.311485495328* 48
GRID* 107 1992.38939617492174.311485495328* 49
GRID* 108 1992.38939617492174.311485495328* 50
GRID* 109 1992.38939617492174.311485495328* 51
GRID* 110 1992.38939617492174.311485495328* 52
.
.

Note: This example actually does not take advantage of the double precision. Without a “D” in the exponent, only 8 significant digits will be used by Nastran

of Patran
Grid coordinates will be written with single precision
Accuracy of results is questionable

.
.
GRID 101 1992.39 174.312 0.
GRID 102 1992.39 174.312 100.
GRID 103 1992.39 174.312 200.
GRID 104 1992.39 174.312 300.
GRID 105 1992.39 174.312 400.
GRID 106 1992.39 174.312 500.
GRID 107 1992.39 174.312 600.
GRID 108 1992.39 174.312 700.
GRID 109 1992.39 174.312 800.
GRID 110 1992.39 174.312 900.
.
.

to prior behavior
Grid coordinates will be written with single precision
No changes in resulting Nastran input file

.
.
GRID 101 1992.39 174.312 0.
GRID 102 1992.39 174.312 100.
GRID 103 1992.39 174.312 200.
GRID 104 1992.39 174.312 300.
GRID 105 1992.39 174.312 400.
GRID 106 1992.39 174.312 500.
GRID 107 1992.39 174.312 600.
GRID 108 1992.39 174.312 700.
GRID 109 1992.39 174.312 800.
GRID 110 1992.39 174.312 900.
.
.

“Write Store Precision”
Grid coordinates will be written with double precision
No changes in resulting Nastran input file

.
GRID* 101 1992.38939617D0 174.311485495D0
* 0.
GRID* 102 1992.38939617D0 174.311485495D0
* 100.D0
GRID* 103 1992.38939617D0 174.311485495D0
* 200.D0
GRID* 104 1992.38939617D0 174.311485495D0
* 300.D0
GRID* 105 1992.38939617D0 174.311485495D0
* 400.D0
GRID* 106 1992.38939617D0 174.311485495D0
* 500.D0
GRID* 107 1992.38939617D0 174.311485495D0
* 600.D0
GRID* 108 1992.38939617D0 174.311485495D0
* 700.D0
GRID* 109 1992.38939617D0 174.311485495D0
* 800.D0
GRID* 110 1992.38939617D0 174.311485495D0
* 900.D0

The format looks different due to the “D” exponent

now yields same results

keyword

LOADS, ASMBULK, EXTBULK, EXTID = seid,

MATRIXDB )
OR
DMIGDB
OR
DMIGPCH

LOADS, ASMBULK, EXTBULK, EXTID = seid,

DMIGOP2 )

MSC.Patran
Include the MSC.Nastran cards required to make the results available to the .MASTER/.DBALL files

System Cell area
Available under
Analyze : Entire Model
Analyze : Selected Group
Analyze : Restart

or the .DBALL file sets
A new line in the Nastran System Cell area
NASTRAN SYSTEM(316)=3
or
NASTRAN SYSTEM(316)=7

file
$ translator ( MSC.Patran 13.0.008 ) on January 23, 2004 at 09:46:29.
$ Direct Text Input for Nastran System Cell Section
NASTRAN SYSTEM(316)=7
$ Direct Text Input for File Management Section
$ Linear Static Analysis, Database
SOL 101
$ Direct Text Input for Executive Control
CEND
SEALL = ALL
SUPER = ALL
TITLE = MSC.Nastran job created on 23-Jan-04 at 09:29:15
ECHO = NONE
RIGID = LINEAR
$ Direct Text Input for Global Case Control Data
SUBCASE 1
$ Subcase name : Default
SUBTITLE=Default
SPC = 2
LOAD = 2
DISPLACEMENT(SORT1,REAL)=ALL
SPCFORCES(SORT1,REAL)=ALL
STRESS(SORT1,REAL,VONMISES,BILIN)=ALL
BEGIN BULK
PARAM POST 0
PARAM AUTOSPC YES
PARAM PRTMAXIM YES
$ Direct Text Input for Bulk Data
$ Elements and Element Properties for region : prop
PSHELL 1 1 .3 1 1
$ Pset: "prop" will be imported as: "pshell.1"
CQUAD4 1 1 1 2 8 7
CQUAD4 2 1 2 3 9 8
CQUAD4 3 1 3 4 10 9
.
.
.

file
$ translator ( MSC.Patran 13.0.008 ) on January 23, 2004 at 09:46:29.
$ Direct Text Input for Nastran System Cell Section
NASTRAN SYSTEM(316)=3
$ Direct Text Input for File Management Section
$ Linear Static Analysis, Database
SOL 101
$ Direct Text Input for Executive Control
CEND
SEALL = ALL
SUPER = ALL
TITLE = MSC.Nastran job created on 23-Jan-04 at 09:29:15
ECHO = NONE
RIGID = LINEAR
$ Direct Text Input for Global Case Control Data
SUBCASE 1
$ Subcase name : Default
SUBTITLE=Default
SPC = 2
LOAD = 2
DISPLACEMENT(SORT1,REAL)=ALL
SPCFORCES(SORT1,REAL)=ALL
STRESS(SORT1,REAL,VONMISES,BILIN)=ALL
BEGIN BULK
PARAM POST 0
PARAM AUTOSPC YES
PARAM PRTMAXIM YES
$ Direct Text Input for Bulk Data
$ Elements and Element Properties for region : prop
PSHELL 1 1 .3 1 1
$ Pset: "prop" will be imported as: "pshell.1"
CQUAD4 1 1 1 2 8 7
CQUAD4 2 1 2 3 9 8
CQUAD4 3 1 3 4 10 9
.
.
.

a BDF is created from MSC.Patran and then that BDF file is read into a new database
When importing a BDF, make sure that the names of the materials and element properties created are the same as the names were when the BDF was created

names of the Materials and Properties from the comments in the input deck
Cards starting with ‘M’ and ‘P’ will have an attempt made to retain the original names

("nifimp_retrieve_name", FALSE) in your settings.pcl to disable this feature by default.

for Bulk Data
$ Elements and Element Properties for region : My_fisrt_Proerty
PSHELL 1 1 1. 1 1
$ Pset: "My_fisrt_Proerty" will be imported as: "pshell.1"
CQUAD4 16 1 19 20 26 25
CQUAD4 17 1 20 21 27 26
CQUAD4 18 1 21 22 28 27
CQUAD4 19 1 22 23 29 28
CQUAD4 20 1 23 24 30 29
CQUAD4 21 1 25 26 32 31
CQUAD4 22 1 26 27 33 32
CQUAD4 23 1 27 28 34 33
CQUAD4 24 1 28 29 35 34
CQUAD4 25 1 29 30 36 35
$ Elements and Element Properties for region : Second_Proerty
PSHELL 2 2 1. 2 2
$ Pset: "Second_Proerty" will be imported as: "pshell.2"
CQUAD4 1 2 1 2 8 7
CQUAD4 2 2 2 3 9 8
CQUAD4 3 2 3 4 10 9
CQUAD4 4 2 4 5 11 10
CQUAD4 5 2 5 6 12 11
CQUAD4 6 2 7 8 14 13
CQUAD4 7 2 8 9 15 14
CQUAD4 8 2 9 10 16 15
CQUAD4 9 2 10 11 17 16
CQUAD4 10 2 11 12 18 17
CQUAD4 11 2 13 14 20 19
CQUAD4 12 2 14 15 21 20
CQUAD4 13 2 15 16 22 21
CQUAD4 14 2 16 17 23 22
CQUAD4 15 2 17 18 24 23
$ Referenced Material Records
$ Material Record : material_1
$ Description of Material : Date: 05-Mar-04 Time: 13:52:07
MAT1 1 72000. .3
$ Material Record : another_Material
$ Description of Material : Date: 05-Mar-04 Time: 13:52:07
MAT1 2 72000. .3
$ Nodes of the Entire Model
GRID 1 0. 0. 0.
GRID 2 .2 0. 0.

thermal boundary conditions
Emissivity value, heat transfer coefficient, ..
Assuming all existing thermal boundary conditions remain in the database

such as Radiation:Enclosures
Grid point IDs of grids bounding the surface will be updated
Consequently the radiation view factors in a radiation enclosure will need to be recalculate
This could be very time consuming

1 1
45 24 21 33
CHBDYG 100005 AREA4 1 1
9 8 54 42
CHBDYG 100006 AREA4 1 1
42 54 26 27
CHBDYG 100007 AREA4 1 1
8 7 11 54
CHBDYG 100008 AREA4 1 1
54 11 12 26
CHBDYG 100009 AREA4 2 2
1 4 5 2
CHBDYG 100010 AREA4 2 2
2 5 6 3
CHBDYG 100011 AREA4 2 2
5 8 9 6
CHBDYG 100012 AREA4 3 3
7 4 14 11
CHBDYG 100013 AREA4 3 3
11 14 15 12
CHBDYG 100014 AREA4 3 3
4 1 17 14
CHBDYG 100015 AREA4 3 3
14 17 18 15
CHBDYG 100016 AREA4 3 3
3 33 36 2
.
.

.
.
CHBDYG 100004 AREA4 1 1
45 24 21 33
CHBDYG 100005 AREA4 1 1
9 8 54 42
CHBDYG 100006 AREA4 1 1
42 54 26 27
CHBDYG 100007 AREA4 1 1
8 7 11 54
CHBDYG 100008 AREA4 1 1
54 11 12 26
CHBDYG 100009 AREA4 2 2
7 4 14 11
CHBDYG 100010 AREA4 2 2
11 14 15 12
CHBDYG 100011 AREA4 2 2
4 1 17 14
CHBDYG 100012 AREA4 2 2
14 17 18 15
CHBDYG 100013 AREA4 2 2
3 33 36 2
CHBDYG 100014 AREA4 2 2
33 21 20 36
CHBDYG 100015 AREA4 2 2
2 36 17 1
CHBDYG 100016 AREA4 2 2
36 20 18 17
.
.

Initial Nastran Input File

After LBC revision

activate the MSC.Nastran geometry check options
GEOMCHECK
The following options are available
SUMMARY
NONE
MSGTYPE
FATAL
INFORM
WARN

the previous releases of Nastran
Default is 0.0 for all SOLs except 106, 129,153 & 159
Default is 100.0 for SOLs 106, 129,153 & 159
The K6ROT value in Patran interface is now consistent with Nastran
PARAM K6ROT entry will not be written to the input file if no changes were made to the Plate Rz Stiffness factor databox

be 100.

be 0.
You will need to reset defaults if the Solution Parameters form was opened prior to changing Nastran version

support of Direct Result Access (DRA) to MSC.Nastran database (DBALL)
In MSC.Patran 2004 r2, only static solution sequence (SOL 101) was supported

105 Buckling
SOL 106 Non-Linear Static
SOL 107/110 Direct/Modal Complex Eigenvalues
SOL 108/111 Direct Frequency Response
SOL 109/112 Modal Transient Response
SOL 200 Optimization

supported
Grid point force
Displacement
Constraints (i.e. SPC forces)
DRA to the following elemental results sets are now supported
Element forces
Centroid & corner
Element Stresses
Centroid, corner, equivalent stress only for composite
Element Strains
Centroid & corner

supported
CBAR, CBEAM, CROD, CONROD, CELAS1, CELAS2, CSHEAR, CTRIA3, CQUAD4, CHEXA, CPENTA, CTETRA

description needed by manufacturers to build part

models needed for detailed design and analysis

component
Link analysis, design and manufacture
Allow for rapid modifications during model development for efficient improvement
Audit thickness and fibre direction changes in as-manufactured plies
Review results on a representative ply basis

needed

Reinforcement ply

surfaces with high curvature

2 Layer 3



Laminate Modeler / PCOMPG Results - meaningful
Ply 1 Ply 2 Ply 3

concepts
Separate ply database (.Layup file)
2003 – MSC.Nastran PCOMPG
Track plies through calculation from input to results
Establish ply modeling as industry standard technique
2004 – MSC.Patran PCOMPG support
Allow easy use of MSC.Nastran capabilities
Provide MSC.Patran database support of ply description
Increase effectiveness of MSC.Patran Laminate Modeler

plies in PCOMPG model
Direct global ply results recovery in op2
Optional sorting by global ply in f06 (GPRSORT=ALL)

results
(LM previously needed)

Ply model retained in Patran & Nastran databases

Archived results reflect plies

the MSC.Patran Laminate Modeler

e.g. cowl, 40 plies
Overall plies
Edge reinforcement
Foam core

Big models up to 5000 plies in daily use

No GPLYIDs
2. Sequential
3. Manual
Default ids 1001+
Avoids ambiguity with layer ids

New column for GPLYIDs

Options for setting GPLYIDs

with LM model
Via matching GPLYIDs
Manual changes
Insert or Override
Programming access
PCL and C functions

New column for GPLYIDs

Allows manual input

IDs” to write PCOMPG cards (if GPLYIDs are set correctly)
Direct Text Input for Case Control
GPRSORT=ALL or as required for f06 results sorting
Beta supports MSC.Nastran 2004 only
Q1-15341601

results!
No separate sorting required!

For more detailed information and workshop, see Section 9: Support of MSC.Nastran Ply Definition

600
1st major SOL 600 release, in MSC.Patran 2004, included
Support for all contact options
Rigid – Deformable
Rigid geometry contact
Deformable contact
Contact table
All contact interactions
Friction / Interaction controls
Glued contact
Support for commonly used material models
Load step capable for complex loading histories

Implicit Nonlinear SOL 600

Anisotropic
2D shell and 3D solid laminated composites
Most plasticity models
Most hyper- elastic models
Experimental data fitting supported
DDM/DMP multi-processor support
Direct result access

Implicit Nonlinear SOL 600

see following
MSC.Patran 2005 r2 committed – support for Gasket materials, bolt preloads
MSC.Patran 2005 r2 floating – support for thermal analysis
MSC.Patran 2006 floating – support for coupled thermal - structural analysis, adaptive re-meshing

Implicit Nonlinear SOL 600

Note: 2005r2 and 2006 floating capabilities are estimates, obviously requiring that these be supported in SOL 600 first

rigid bodies
MSC.Patran 2005
Results visualization of rigid body motion

Response

stress stiffening
Eigenvalue buckling following NL static – reflects reduction in critical buckling load due to nonlinear effects

error messages
View status/log/output files
Keyword search output file

jobs
View .f04,.f06 files
Shows iteration controls used
All the details of the iterations
Messages from the solver
Numerical singularities, zero pivots, and negative eigen-values
Useful in pinpointing difficulties and troubleshooting
Locations of highest residuals
Locations of excessive deformation
Locations of contact changes

Job Monitoring

the job
View Files:
View .sts file
View .f06 file
View .f04 file
View .log file
View .out file
Keyword search

as initial conditions to new analysis
Components can be specified individually
Results from previous runs can be mapped using FEM fields

PARAM, MROUTLAY

2006
Multi-physics – beyond 2006
Keep patran current with SOL 600
Incremental functionality with each MSC.Patran release

Goals – SOL 600 Analysis Types

Goals

on new Marc Tying type 69/SOL 600 MBOLTUS
Automatically modifies mesh as Required

v2005r2

Force or displacement loading

new topology optimization enhancement in SOL 200 finds an optimal distribution of material, given the package space, loads, and boundary conditions
Beta release for the upcoming MSC.Nastran 2005

topology optimization in SOL 200
Derived from OPTISHAPE preference
Retain some key features of OPTISHAPE preference
More consistent look & feel
More robust infrastructural support
Analysis types, element properties, …

target

10: Topology Optimization