Name: Data at Nodes Status: Obsolete Owner: Simulation Revision Date: 07-Mar-1997 Additional Comments: This dataset is written and read by I-DEAS Test. ----------------------------------------------------------------------- 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 (Engineering) 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 (6I10) 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
FIELD 5: Response Coordinate Label
FIELD 6: Response Coordinate Direction see Reference Coordinate Direction 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. ----------------------------------------------------------------------