SEBULK

Bulk Data Entry Defines superelement boundary search options and the type of superelement.

Format

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
SEBULK SEID TYPE RSEID METHOD TOL LOC UNITNO

Example

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
SEBULK 1001 REPEAT 1002 MANUAL 1.0E-4 YES

Definition

Field Contents SI Unit Example
SEID Identification number of the partitioned superelement.

No default (Integer ≥ 0) 5

  
TYPE Superelement type:
PRIMARY
Indicates that this is a part superelement (using BEGIN SUPER)
EXTOP4
Indicates that this is external superelement using an OUTPUT4 file created in another job.
REPEAT
Identical. 3

No default (Character)

  
RSEID Identification number of the reference superelement.

This is applicable only when TYPE = REPEAT.

Default = 0 (Integer ≥ 0)

  
METHOD Method used for searching the boundary grid points.
MANUAL (Default)
In this case, SECONCT entries are required.
  
TOL Search tolerance for the boundary grid points.

Default = 1.0E-5 (Real ≥ 0.0)

  
LOC Coincident location check option.
This is applicable when METHOD = MANUAL.
YES (Default)
Enables the check for coincident location of grid points.
NO
Disables the check for coincident location of grid points.

(Character)

  
UNITNO Fortran unit number for OUTPUT4 file (specified through ASSIGN,INPUTT4).

This is applicable only when TYPE = EXTOP4.

No default (Integer > 0)

  

Comments

  1. This specification must be specified in the MAIN Bulk Data and is meaningful only if part superelements (using BEGIN SUPER).
  2. A superelement with TYPE = PRIMARY, may itself be repositioned using an SELOC entry. In this case, the primary superelement will be positioned at the location implied by the SELOC entry.
  3. The following comments apply to TYPE= REPEAT.
    • An SEID whose TYPE is REPEAT is referred to as a secondary superelement. The RSEID specified in this case is regarded as the primary superelement.
    • The primary superelement must be either a part superelement or an external superelement created by another earlier job. It must be defined via its own SEBULK entry, wherein TYPE must be either "PRIMARY".
    • The primary superelement does not include superelements upstream of the primary superelement.
    • The primary superelement may be re-positioned (2).
    • If the primary superelement specified by RSEID is a part superelement, then the secondary superelement is a copy of the primary superelement. In this case, the boundary, loads, constraints and reduction procedure of the secondary superelement can be different from those of its primary superelement.
    • The secondary superelement in this case may or may not reference an SELOC entry.
    • If it references an SELOC entry, then an identical copy of its primary superelement will be positioned at the location implied by the SELOC entry.
  4. SECONCT can be used to augment the search procedure and/or to override the global tolerance. TOL and LOC are the default values that can be modified between two superelements by providing the required tolerance on the SECONCT entry.
  5. A SEID=0 is valid for the residual part only if it is desired to set a TOL value for the residual.