GiD-NASTRAN interface

Finite element analysis code

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

http://www.compassis.com

info@compassis.com

February 2004

Reference manual1

GiD-NASTRAN Interface Features1

About this Manual1

Introduction. 2

Pre-processing. 2

Item help. 3

Load Cases3

Combined load cases4

Constraints5

Constraints (Points, Lines, Surfaces)5

Enforced Displacements (Points, Lines, Surfaces)5

Fixed Temperature. 6

Static Loads6

Point Force Load. 6

Moment7

Line-Pressure-Load. 7

Line-Projected-Pressure. 8

Line-Triangular-Pressure. 9

Surface-Pressure-Load. 10

Normal-Surface-Load. 10

Local Axes11

Connections13

Dynamic loads13

Freq Dynamic Type 1. 14

Freq Dynamic Type 2. 14

Time Dynamic Type 1. 15

Time Dynamic Type 2. 16

Cosine/Sine Load. 16

Pressure Freq Type 1 (lines and surfaces)18

Pressure Freq Type 2 (lines and surfaces)19

Pressure Time Type 1 (lines and surfaces)20

Remarks20

Pressure Time Type 2 (lines and surfaces)21

Remarks21

Initial Conditions (Points, lines and surfaces)22

Thermal Loads22

Initial Temperature. 22

Heat Flux22

Convection Boundary. 23

Radiation Boundary. 23

Volumetric Heat23

Heat Boundaries24

Advanced conditions25

Concentrated Mass Element25

Output sets26

Table of outputs27

Material28

Property. 30

Tables39

Executive Control43

Case Control45

Input data. 45

Output Data. 46

Remarks48

Advanced Data. 48

Dynamics49

Modes Analysis49

Dynamic Design. 51

Buckling. 53

Nonlinear Analysis54

Parameters55

Verify Properties55

Obtain input file for NASTRAN. 56

Post-processing. 57

Importing NASTRAN Models58

Static Analysis of a Beam.. 59

Description of Model:59

Properties:59

Procedure:60

Start:60

Create geometry:61

Define Local Axes61

Assign properties and material:63

Assign Constraints:66

Connections67

Assign Static Loads67

Mesh the Geometry:68

Perform the Analysis:69

Obtain Input File for NASTRAN Code:70

Post process:71

Import punch file:71

Import FEMAP ASCII neutral file:71

Visualization of results:72

Static Analysis of a Gear75

Description of the Model:75

Procedure:76

Start:76

Preferences:77

Assign Properties:77

Assign Constraints:79

Assign Static Loads80

Perform the Analysis:81

Mesh the Geometry:82

Obtain Input File for NASTRAN Code:83

Post process:83

Import punch file:84

Import FEMAP ASCII neutral file:84

Results visualization:84

Direct Frequency Response Analysis. 87

Description of Model:88

Properties:88

Procedure:89

Start:89

Create geometry:89

Assign properties and material:91

Assign Constraints:94

Assign Dynamic Load. 94

Perform the Analysis:99

Obtain Input File for NASTRAN Code:101

Post process:101

Import punch file:101

Import FEMAP ASCII neutral file:102

Visualization of results:102

Modal Analysis of a Beam.. 105

Description of Model:106

Properties:106

Procedure:107

Start:107

Create geometry:107

Assign properties and material:107

Define Local Axes111

Mesh the Geometry:113

Assign Constraints:113

Perform the Analysis:114

Obtain Input File for NASTRAN Code:116

Post process:116

Import punch file:117

Import FEMAP ASCII neutral file:117

Visualization of results:117

Modes of beam. 119

Reference manual

The following manual describes capabilities of the pre/postprocessing part of GiD-NASTRAN Interface.