Accels

Purpose:

This interface is used to create accelerometers which in LS-DYNA are defined using the *ELEMENT_SEATBELT_ACCELEROMETER keyword card. An accelerometer is a tria element and all 3 nodes must be rigid. Rigid nodes are those belonging to a rigid body, a *CONSTRAINED_NODAL_RIGID_BODY, or extra nodes to a rigid body. Node1 of the accelerometer is defined in *DATABASE_HISTORY_NODE for outputting time histories to NODOUT and other binary time history databases. The accelerations are output in the accelerometer local coordinate system.

Function:

There are two methods for define seatbelt accelerometer data.

Sample:

No sample.

  • Show : Show existing *ELEMENT_SEATBELT_ACCELEROMETER entities.

  • Cre : Create new *ELEMENT_SEATBELT_ACCELEROMETER entities.

  • Mod : Modify existing *ELEMENT_SEATBELT_ACCELEROMETER entities .

  • Del : Delete existing *ELEMENT_SEATBELT_ACCELEROMETER entities.

  • Label : Select label type.

  • SBACID : Enter *ELEMENT_SEATBELT_ACCELEROMETER ID (unique number).

  • NewID : Generate new ID.

  • IGRAV : Set value for gravitational accelerations parameter.

  • INTOPT : Set value for integration option parameter.

  • All : Select all *ELEMENT_SEATBELT_ACCELEROMETER entities.

  • None : Deselect all *ELEMENT_SEATBELT_ACCELEROMETER entities.

  • Rev : Reverse selection.

  • AList : Select all entities within the selected range.

  • Apply : Apply entries for creation/modification or selections for deletion.

  • Cancel : Cancel this modification or selection.

Define Seatbelt Accels data by 3Nodes:

  • N1/N2/N3 : Pick node or enter node ID .

Define Seatbelt Accels data by 3Position:

  • X : Enter Origin Position X Value / X Direction / xy Plane X

  • Y : Enter Origin Position Y Value / Y Direction / xy Plane Y

  • Z : Enter Origin Position Z Value / Z Direction / xy Plane Z

  • Vector : Call Direction Dialog.

  • Modify : Modify coordinates useing Coordinate Creating dialog.