The .disp file is an OptiStruct
        ASCII format results file.
        File Creation
            
            This file is created when the OPTI, OS or BOTH formats are chosen. (See documentation
                for the I/O Option OUTPUT).
        
File Contents
                        
                            | Result | 
                            Description | 
                        
                    
                        
                            | Acceleration | 
                            Acceleration results from
                                frequency response analysis and linear transient analysis.  Output
                                    is controlled by the I/O Option ACCELERATION. 
 | 
                        
                        
                            | Displacement | 
                            Displacement results from
                                linear static, inertia relief, frequency response analysis, and
                                linear transient analysis.  Output is controlled by the I/O Option
                                        DISPLACEMENT. 
 | 
                        
                        
                            | Eigenvector | 
                            Eigenvector results from
                                normal modes and linear buckling analysis.  Output is controlled
                                    by the I/O Option DISPLACEMENT. 
 | 
                        
                        
                            | Velocity | 
                            Velocity results from
                                frequency response analysis and linear transient analysis.  Output
                                    is controlled by the I/O Option VELOCITY. 
 | 
                        
                    
 
File Format
The displacement file has the following format:
                            
                                | For each iteration, the following header is
                                    used: | 
                            
                            
                                |   | 
                                iter | 
                                Iteration | 
                                Numids | 
                            
                        
 
                    
                        - Data
 
                        - Description
 
                    
                    
                        - iter
 
                        - Keyword identifying that the next field is the iteration number.
 
                    
                    
                        - Iteration
 
                        - The iteration number.
 
                    
                    
                        - Numids
 
                        - The number of linear static subcases plus the number of calculated
                            normal and buckling modes.
 
                    
                
                            
                                | Within the iteration section, the following header
                                    is used for each linear static subcase, normal or linear
                                    buckling mode, or direct modal frequency response: | 
                            
                            
                                |   | 
                                LCID | 
                                Numnod | 
                                Freq | 
                                Result:
                                        SPCcase
                                    (Datatype) | 
                            
                        
 
                    
                        - Data
 
                        - Description
 
                    
                    
                        - LCID
 
                        - Output ID for the subcase or mode. This is not necessarily the same as
                            the subcase ID defined in the input data.
 
                    
                    
                        - Numnod
 
                        - Number of grids in the model.
 
                    
                    
                        - Freq
 
                        - Frequency or Buckling eigenvalue (1.0 for static subcases).
 
                    
                    
                        - Result
 
                        - Keyword declaring the result type given.
 
                        - DISP indicates displacement result.
 
                        - VELO indicates a velocity result (for frequency
                            response analysis only).
 
                        - ACCE indicates an acceleration result (for frequency
                            response analysis only).
 
                    
                    
                        - SPCcase
 
                        - SPC set identification number for linear static, inertia relief, or
                            frequency response subcases or 1 for eigenvectors.
 
                    
                    
                        - Datatype
 
                        - Keyword indicating the type of subcase involved.
 
                        - LOAD declares data is from a static subcase.
 
                        - EIGV declares data is from a normal modes subcase.
 
                        - BKLV declares data is from a linear buckling
                            subcase.
 
                        - DFRQ declares data is from a direct frequency response
                            subcase.
 
                        - MFRQ declares data is from a modal frequency response
                            subcase.
 
                    
                
                            
                                | Within the subcase or mode section, the following
                                    information is provided for each node: | 
                            
                            
                                |   | 
                                NID | 
                                X
                                        disp | 
                                Y
                                        disp | 
                                Z
                                        disp | 
                                  | 
                            
                        
 
                    
                        - Data
 
                        - Description
 
                    
                    
                        - NID
 
                        - Node identification number.
 
                    
                    
                        - X
 
                        - X displacement of the node.
 
                    
                    
                        - Y
 
                        - Y displacement of the node.
 
                    
                    
                        - Z
 
                        - Z displacement of the node.
 
                    
                
 
            The displacement file has the following format for linear transient analysis:
                            
                                | For each
                                    iteration, the following header is used: | 
                            
                            
                                |   | 
                                iter | 
                                Iteration | 
                                  | 
                            
                        
 
                    
                        - Data
 
                        - Description
 
                    
                    
                        - iter
 
                        - Keyword identifying that the next field is the iteration number.
 
                    
                    
                        - Iteration
 
                        - The iteration number.
 
                    
                
                            
                                | Within the
                                    iteration section, the following header is used for each
                                    transient analysis subcase: | 
                            
                            
                                | Subcase | 
                                Id | 
                                Label | 
                                  | 
                            
                            
                                | Time | 
                                Time | 
                                  | 
                                  | 
                            
                            
                                | Result Type | 
                                Domain | 
                                [Format] | 
                                  | 
                            
                        
 
                    
                        - Data
 
                        - Description
 
                    
                    
                        - Id
 
                        - Output ID for the subcase. This is not necessarily the same as the
                            subcase ID defined in the input data.
 
                    
                    
                        - Label
 
                        - Subcase label.
 
                    
                    
                        - Time
 
                        - Time increment information.
 
                    
                    
                        - Format
 
                        - Complex, Real, Imaginary, Phase, and so on.
 
                    
                    
                        - Result Type
 
                        - Keyword declaring the result type given.
 
                        - DISP indicates displacement results.
 
                        - VELO indicates a velocity result.
 
                        - ACCE indicates an acceleration result.
 
                    
                
                            
                                | Within the subcase section, the following information is
                                    provided for each grid: | 
                            
                            
                                |   | 
                                GID | 
                                X | 
                                Y | 
                                Z | 
                                RX | 
                                RY | 
                                RZ | 
                            
                        
 
                    
                        - Data
 
                        - Description
 
                    
                    
                        - GID
 
                        - Grid identification number.
 
                    
                    
                        - X
 
                        - X value of the grid.
 
                    
                    
                        - Y
 
                        - Y value of the grid.
 
                    
                    
                        - Z
 
                        - Z value of the grid.
 
                    
                    
                        - RX
 
                        - RX value of the grid.
 
                    
                    
                        - RY
 
                        - RY value of the grid.
 
                    
                    
                        - RZ
 
                        - RZ value of the grid.
 
                    
                
 
Comments
            
            
                - The I/O Option Previously Supported Results controls
                    the frequency of output for analytical results during an optimization.