ROTOR

Bulk Data Entry 3D Rotor Definition. Specifies list of sets, elements or properties that comprise the rotor 3D model.

Format

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
ROTOR ROTORID                
  LTYPE ID1 ID2 ID3 etc.        
  AXIS GID1 GID2            

Example

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
ROTOR 10                
  SET 1 THRU 3          
  AXIS 101 102            

Definition

Field Contents SI Unit Example
ROTORID Identification number of a rotor.

No default (Integer > 0)

  
LTYPE Indicates the item type in the list references elemental set IDs, element IDs or property IDs.
SET
ELEM
PROP

No default (Character)

  
IDi IDs of sets, elements or properties comprising the rotor.

No default (Integer > 0)

  
AXIS Defines grid points which define the axis of rotation.  
GID1, GID2 IDs of grids comprising the axis of the rotor.

No default (Integer > 0)

  

Comments

  1. Fixed reference frame method is adopted for 3D rotor dynamic analysis via the ROTOR Bulk Data Entry.
  2. Supported element types:
    • 0D elements : CONM1, CONM2
    • 1D elements : CBEAM, CBAR
    • 3D elements : CHEXA, CPENTA, CTETRA, CPYRA
  3. The THRU option is supported in lists of elemental set IDs, element IDs and property IDs. Different LTYPE lists can be used together.
  4. 1D rotors can be defined via the ROTORG Bulk Data Entry.
  5. For more information, refer to Rotor Dynamics in the User Guide.