!CLOAD

Definition of concentrated load

Parameter

GRPID      = Group ID
AMP        = Time function name (specified by !AMPLITUDE; valid in dynamic analysis)
ROT_CENTER = Rotation-center node number or node group name. If specified, the !CLOAD is recognized as a torque load.

** 2nd line or later **

(2nd line) NODE_ID, DOF_id, Value

Parameters	Attributions	Contents
NODE_ID	I/C	Node ID or node group name
DOF_id	I	Degree of freedom No.
Value	R	Load value

Example of Use

!CLOAD, GRPID=1
  1, 1, 1.0e3
  ALL, 3, 10.0
!CLOAD, ROT_CENTER=7, GRPID=1
  TORQUE_NODES, 1, 3
  TORQUE_NODES, 3, -4

Apply a torque load to ROT_NODES about node 7, with magnitude \(||(3, 0, -4)|| = 5\) and rotation axis \((3/5, 0, -4/5)\).

A torque load specified by ROT_CENTER is internally applied as nodal loads equivalent to the specified torque, and differs from nodal loads applied to degrees of freedom 4, 5, and 6 of shell elements.

When ROT_CENTER is specified

• The node group specified by ROT_CENTER must contain exactly one node.
• Within a single !CLOAD data block, all NODE_ID values must be identical.