1996 Dodge Neon - Finite Element Model

1996 Dodge Neon - Finite Element Model
VIN 3P3ES47C3TT218917
File: Neon-V04.key
Number of Parts - 370
Number of Nodes - 285910
Number of Solids - 2860
Number of Beams - 63
Number of Springs - 8
Number of mass elements - 305
Number of Shells - 269249
Number of Elements - 272485

Accelerometer Locations
Left seat – 2800320
Right seat – 2800328
Engine Top – 2800336
Engine Bottom – 2800344
R brake caliper – 2800352
L brake caliper – 2800360
IP top – 2800368

NCAP simulation results
LS-DYNA
Version: 970
Revision: 3858
Platform: SGI Workstation
OS level: IRIX64 6.5 (64 bit)
Precision: Single precision (I4R4)
Total CPU time: ~ 43 hrs (for 150 ms)
Number of processors: 4

NCAP Comparison
Weight (Kgs)
Engine Type
Tire size
Attitude (mm)
FE
Model
1220
2.0L I4
P185/65
R15
F – 675
Test
Vehicle
1354
2.0L I4
P185/65
R14
F – 660
As delivered R – 665 R – 676
Wheelbase
(mm)
CG (mm)
Rearward of
front wheel C/L
2648
934
2642
1022

NCAP Test Summary
Test No.: 2320
Contract or Study Title: 1996 DODGE NEON INTO FLAT FRONTAL BARRIER (Load
cell wall)
Test Performer: TRC OF OHIO
Test Reference No.: 951026
Test Type: NEW CAR ASSESSMENT TEST
Test Configuration: VEHICLE INTO BARRIER
Closing Speed (kph): 56.5
Impact Angle (degrees): 0
Offset Distance (mm):
Version No.: 2
Test Objectives: OBTAIN 35 MPH NEW CAR ASSESSMENT AND RESEARCH DATA
Test Date: 10/26/1995
Contract No.: DTNH22-90-D-22121
Test Track Surface: CONCRETE
Test Track Condition: DRY
Ambient Temperature (degrees Celsius): 0
Type of Recorder: FM MULTIPLEXOR TAPE RECORDER
Total No. of Curves: 130
Test Commentary: THIS IS A 1995 TEST CONDUCTED ON 1996 VEHICLE

Test Vehicle Data

NCAP – 36 Load Cell wall

Accelerometer Data

Load cell Data by Group

Total wall force and energy balance

Height of Force
600
Average Height of Force
Test 2320, 1996 DODGE NEON, AHOF = 452.6 mm (5 - 100 ms ) std Dev 26.8
Test 2320
500
Height or Distance (mm)
400
300
200
Attitude
(mm)
As
tested
FE
Model
F - 675
R - 665
Test
Vehicle
F - 642
R - 650
100
0
0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14
Time (Seconds)
600
Height of Force
Average Height of Force
Average Height of Force is 479.76
FE Simulation
500
Height above Ground
400
300
200
100
0
0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14
Time (Seconds)

Force Distribution
135.0
Peak Force
Test 2320, 1996 DODGE NEON
Test 2320
75000
Force (N)
50000
25000
0
924
664
234
468
703
937
Height (mm)
416
-703
-468
-234
0
Distance From Center (mm)
181
-937
135.0
Peak Force Distribution
Peak Force (Newtons)
250K
200K
150K
100K
50K
0
4
3
4
5
6
7
8
FE Simulation
Row above ground
2
2
3
Column
1
1
0

STATUS:
• FE model is stable in full frontal flat rigid wall simulations ( Model
has been run at 25, 30, 35 and 40 mph to ensure stability )
• Better correlation can be achieved by modeling failure in the engine
mounts
• Rear tires to axle connection needs to be remodeled
• NCAC quality control process – 70% complete