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HVE directly answers the following questions using Newton's laws of motion:
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Questions
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Answers
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Impact Speed
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Peterbilt:
54 - 59 mph
Ford:
50 - 57 mph
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Available Reaction Time
Before Impact
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Peterbilt:
> 4 sec
Ford:
2.3 sec
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Peak Impact Force
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Peterbilt:
Total
Fx = -43,000 lb, Fy = 39,400 lb, Fz =
-400 lb
At Wheel Fx = -23,000 lb, Fy = 20,900 lb, Fz =
-6,200 lb
Ford:
Total
Fx = -36,100 lb, Fy = 44,000 lb, Fz = 12,700 lb
At Wheel Fx = -13,400 lb, Fy =
7,300 lb,
Fz =
6,900 lb
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Peak Impact Acceleration
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Peterbilt:
AccTotal = 3 - 4 g
Ford:
AccTotal = 13 - 18 g
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Required Technologies
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SIMON 3-D Vehicle Dynamics Simulation Model
DyMESH 3-D Collision Model, Version 3
HVE 3-D Terrain Model
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Other software may claim to answer these questions. Have you closely
evaluated their claims and the basis for their results?
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