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Problem Description |
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This demonstration problem will illustrate using a passive human model
to evaluate the potential injuries sustained during vehicle crash.
The human model will be combined with an ADAMS model of a car interior.
The model will be restrained using forces to simulate the seat/shoulder
belts. The compartment is then subjected to an acceleration pulse
from the rear, and in another simulation one from the front. Injury
potential will be evaluated by examining the segment impact forces,
the segment accelerations and the loads at the anatomical joints.
Features of this example problem include:
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Model Construction |
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In this phase the human body model is developed and placed in an environment.
The body consists of 19 segments and 18 joints with the mass properties
of a 5% UK male and the joint characteristics of the Hybrid III crash
dummy. The model is then placed in one of the standard postures in
the posture library, the riding position. The standard ADAMS/View
tools are used to create the interior of the car (sled), consisting
of a seat, floor and seat belts. Contact elements are created between
the segments of the human model and the seat and floor of the car
interior. |
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Equilibrium Simulation |
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 Gravity
is set in the proper direction and a simulation is performed to allow
for the model to settle into the seat.
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Crash Pulse Simulation |
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| Simulations are then performed for a crash pulse consistent with a vehicle being struck from the rear and one for a vehicle being struck from the front. | ||
Results Interrogation |
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 When
the simulation is complete the model may be animated. Various representations
are used and are accessed by the buttons on every LifeMOD™ menu panel.
To make an injury assessment of the crash and to examine the effects
of the rearward collision as compared to the forward collision, the
data may be plotted together. The data from the simulation that would
be useful is:
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Further |
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This model was put forth to demonstrate the
creation of a passive human model to determine the physical reactions
to a human during a car crash. Also, to demonstrate how to examine
the effects of separate conditions of a crash (i.e., forward vs.
rearward collisions).This model may be refined in many areas including:
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