Universal Dataset Number: 55
Name: Data at Nodes
RECORD 1: Format (40A2)
FIELD 1: ID Line 1
RECORD 2: Format (40A2)
FIELD 1: ID Line 2
RECORD 3: Format (40A2)
FIELD 1: ID Line 3
RECORD 4: Format (40A2)
FIELD 1: ID Line 4
RECORD 5: Format (40A2)
FIELD 1: ID Line 5
RECORD 6: Format (6I10)
Data Definition Parameters
FIELD 1: Model Type
0: Unknown
1: Structural
2: Heat Transfer
3: Fluid Flow
FIELD 2: Analysis Type
0: Unknown
1: Static
2: Normal Mode
3: Complex eigenvalue first order
4: Transient
5: Frequency Response
6: Buckling
7: Complex eigenvalue second order
FIELD 3: Data Characteristic
0: Unknown
1: Scalar
2: 3 DOF Global Translation
Vector
3: 6 DOF Global Translation
& Rotation Vector
4: Symmetric Global Tensor
5: General Global Tensor
FIELD 4: Specific Data Type
0: Unknown
1: General
2: Stress
3: Strain
4: Element Force
5: Temperature
6: Heat Flux
7: Strain Energy
8: Displacement
9: Reaction Force
10: Kinetic Energy
11: Velocity
12: Acceleration
13: Strain Energy Density
14: Kinetic Energy Density
15: Hydro-Static Pressure
16: Heat Gradient
17: Code Checking Value
18: Coefficient Of Pressure
FIELD 5: Data Type
2: Real
5: Complex
FIELD 6: Number Of Data Values Per Node (NDV)
Records 7 And 8 Are Analysis Type Specific
General Form
RECORD 7: Format (8I10)
FIELD 1: Number Of Integer Data Values
1 < Or = Nint < Or = 10
FIELD 2: Number Of Real Data Values
1 < Or = Nrval < Or = 12
FIELDS 3-N: Type Specific Integer Parameters
RECORD 8: Format (6E13.5)
FIELDS 1-N: Type Specific Real Parameters
For Analysis Type = 0, Unknown
RECORD 7:
FIELD 1: 1
FIELD 2: 1
FIELD 3: ID Number
RECORD 8:
FIELD 1: 0.0
For Analysis Type = 1, Static
RECORD 7:
FIELD 1: 1
FIELD 2: 1
FIELD 3: Load Case Number
RECORD 8:
FIELD 11: 0.0
For Analysis Type = 2, Normal Mode
RECORD 7:
FIELD 1: 2
FIELD 2: 4
FIELD 3: Load Case Number
FIELD 4: Mode Number
RECORD 8:
FIELD 1: Frequency (Hertz)
FIELD 2: Modal Mass
FIELD 3: Modal Viscous Damping Ratio
FIELD 4: Modal Hysteretic Damping Ratio
For Analysis Type = 3, Complex Eigenvalue
RECORD 7:
FIELD 1: 2
FIELD 2: 6
FIELD 3: Load Case Number
FIELD 4: Mode Number
RECORD 8:
FIELD 1: Real Part Eigenvalue
FIELD 2: Imaginary Part Eigenvalue
FIELD 3: Real Part Of Modal A
FIELD 4: Imaginary Part Of Modal A
FIELD 5: Real Part Of Modal B
FIELD 6: Imaginary Part Of Modal B
For Analysis Type = 4, Transient
RECORD 7:
FIELD 1: 2
FIELD 2: 1
FIELD 3: Load Case Number
FIELD 4: Time Step Number
RECORD 8:
FIELD 1: Time (Seconds)
For Analysis Type = 5, Frequency Response
RECORD 7:
FIELD 1: 2
FIELD 2: 1
FIELD 3: Load Case Number
FIELD 4: Frequency Step Number
RECORD 8:
FIELD 1: Frequency (Hertz)
For Analysis Type = 6, Buckling
RECORD 7:
FIELD 1: 1
FIELD 2: 1
FIELD 3: Load Case Number
RECORD 8:
FIELD 1: Eigenvalue
RECORD 9: Format (I10)
FIELD 1: Node Number
RECORD 10: Format (6E13.5)
FIELDS 1-N: Data At This Node (NDV Real Or
Complex Values)
Records 9 And 10 Are Repeated For Each Node.
Notes:
1 Id Lines May Not Be Blank. If No Information Is
Required, The Word "None" Must Appear Columns 1-4.
2 For Complex Data There Will Be 2*Ndv Data Items At Each
Node. The Order Is Real Part For Value 1, Imaginary
Part For Value 1, Etc.
3 The Order Of Values For Various Data Characteristics
Is:
3 DOF Global Vector:
X, Y, Z
6 DOF Global Vector:
X, Y, Z,
Rx, Ry, Rz
Symmetric Global Tensor:
Sxx, Sxy, Syy,
Sxz, Syz, Szz
General Global Tensor:
Sxx, Syx, Szx,
Sxy, Syy, Szy,
Sxz, Syz, Szz
Shell And Plate Element Load:
Fx, Fy, Fxy,
Mx, My, Mxy,
Vx, Vy
4 Id Line 1 Always Appears On Plots In Output Display.
5 If Specific Data Type Is "Unknown," ID Line 2 Is
Displayed As Data Type In Output Display.
6 Typical Fortran I/O Statements For The Data Sections
Are:
Read(Lun,1000)Num
Write
1000 Format (I10)
Read(Lun,1010) (VAL(I),I=1,NDV)
Write
1010 format (6e13.5)
Where: Num Is Node Number
Val Is Real Or Complex Data Array
Ndv Is Number Of Data Values Per Node
7 Data Characteristic Values Imply The Following Values
Of Ndv:
Scalar: 1
3 DOF Global Vector: 3
6 DOF Global Vector: 6
Symmetric Global Tensor: 6
General Global Tensor: 9
8 Data Associated With I-DEAS Test Has The Following
Special Forms of Specific Data Type and ID Line 5.
For Record 6 Field 4-Specific Data Type, values 0
through 12 are as defined above. 13 and 15 through 19 are:
13: excitation force
15: pressure
16: mass
17: time
18: frequency
19: rpm
The form of ID Line 5 is:
Format (4I10)
FIELD 1: Reference Coordinate Label
FIELD 2: Reference Coordinate Direction
1: X Direction
-1: -X Direction
2: Y Direction
-2: -Y Direction
3: Z Direction
-3: -Z Direction
FIELD 3: Numerator Signal Code
see Specific Data Type above
FIELD 4: Denominator Signal Code
see Specific Data Type above
Also note that the modal mass in record 8 is calculated
from the parameter table by I-DEAS Test.
9 Any Record With All 0.0's Data Entries Need Not (But
May) Appear.
10 A Direct Result Of 9 Is That If No Records 9 And 10
Appear, All Data For The Data Set Is 0.0.
11 When New Analysis Types Are Added, Record 7 Fields 1
And 2 Are Always > Or = 1 With Dummy Integer And
Real Zero Data If Data Is Not Required. If Complex
Data Is Needed, It Is Treated As Two Real Numbers,
Real Part Followed By Imaginary Point.
12 Dataloaders Use The Following ID Line Convention:
1. (80A1) Model
Identification
2. (80A1) Run
Identification
3. (80A1) Run
Date/Time
4. (80A1) Load Case
Name
For Static:
5. (17h Load Case
Number;, I10) For
Normal Mode:
5. (10h Mode Same,
I10, 10H Frequency,
E13.5)
13 No Maximum Value For Ndv .
14 Typical Fortran I/O Statements For Processing Records 7
And 8.
Read (LUN,1000)NINT,NRVAL,(IPAR(I),I=1,NINT
1000 Format (8I10)
Read (Lun,1010) (RPAV(I),I=1,NRVAL)
1010 Format (6E13.5)
15 For Situations With Reduced # Dof's, Use 3 DOF
Translations Or 6 DOF Translation And Rotation With
Unused Values = 0.