This interface is used to measure and plot the residual movement of interior structures as measured by The Insurance Institute of Highway Safety (IIHS).
The movement of seven points on the vehicle interior plus the closing of the distance between the A and B-pillars are the foundations of the Institutes's structural ratings. The measured movement of the interior seven points is adjusted to reflect movement toward the driver seat, which is represented by the locations of its attachment to the vehicle floor. Thus, movement of the driver seat with respect to the reference coordinate system is not reflected in evaluations of vehicle structure (this adjustment is not made for the A-to-B-pillar closure).
There are seven interior points whose movement is measured. Two points are on the lower instrument panel located in front of the dummy's knees, four points are on the footwell area (threeacross the toepan and one on the driver's outboard footrest), and the last point is measured on the brake pedal. The intrusion measurements are done by removing the rigidbody rotations (or yawing) of the vehicle after impact with the barrier, hence, the need to define a reference coordinate sytem.
The following information is required as input to create the IIHS intrusion chart:
- 1. nodout file
- 2. node numbers for the locations and reference system needed for the IIHS template
The information for item number 2 may be contained in an iihs.in file or the nodes can be picked directly from the model (or keyed in by node ID). An example of an iihs.in file is listed below:
REFERENCE NODE
N1 450408
N2 610047
N3 506608
Footwell 508316
LeftToePan 533180
CenterToePan 531302
RightToePan 714685
BrakePedal 2543829
LeftIP 2544264
RightIP 2512780
Door 2507322
Seatmount1 450408
Seatmount2 450416
Seatmount3 450222
Seatmount4 450228
*END
Measure and plot the residual movement of interior structures.
No sample.
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