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Evaluation of the new certification test Evaluation of the new certification test proceduresprocedures
Christian Gehre
2011-05-31
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Christian Gehre, PDB
EVAluation PC Version 2.5.9.17
time [ms]00 20 40 60 80 100 120 140 160 180
mo
me
nt [
Nm
]1
51
05
00-5
-10
-15
-20
Upper neck moment MyUpper neck moment My
• Poor reproducibility of the BioRID in sled tests• Acceptable reproducibility in the “old” certification test
“Old” certification test could not distinguish between dummy specimen
EVAluation PC Version 2.5.9.14
time [ms]00 20 40 60 80 100 120 140 160 180
mo
me
nt [
Nm
]1
51
05
00-5
-10
-15
-20
Hard bucket seat, 16 kph pulse “Old” certification test
Dummy D006Dummy D007
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Christian Gehre, PDB
Test matrixTest matrixDummy D006 & D007Dummy D006 & D007
w/o head rest, standard probe
Hard bucket seat
Adjustment of the dummy
w/o head rest, standard probe
w/ head rest, standard probe
jacket test, standard probe
Hard bucket seat
w/o head rest, standard probe
w/ head rest, standard probe
w/ head rest, heavy probe
Status
Adjustment
Verification
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Christian Gehre, PDB
Results certification testsResults certification testsUpper neck moment MyUpper neck moment My
Standard probe Heavy probe
w/ Head restNo difference
between dummiesNo difference
between dummies
w/o Head restNo difference
between dummies
Torso jacketNo difference
between dummies
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Dummy artefactDummy artefact
Christian Gehre
2011-05-31
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Christian Gehre, PDB
Dummy artefactsDummy artefactsDesign of the dummyDesign of the dummy
Upper torso jacket bolts Inner plates
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Christian Gehre, PDB
Dummy artefactsDummy artefactsKinematicsKinematics
Hard bucket seat
Vehicle seat
Load path shoulder to spine Interaction between bolts and plates (hard bucket seat)
w/ bolts
w/o bolts
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Christian Gehre, PDB
EVAluation PC Version 2.5.9.17
time [ms]00 20 40 60 80 100 120 140 160 180
forc
e [N
]1
50
10
05
000
-50
-10
0
EVAluation PC Version 2.5.9.17
time [ms]00 20 40 60 80 100 120 140 160 180
mo
me
nt [
Nm
]1
61
28
400
-4
Dummy artefactsDummy artefactsResults – Testing (dummy D078)Results – Testing (dummy D078)
• Positive neck force is mainly caused by the load applied via the upper torso jacket bolts incl. the interaction with the inner shoulder plates– Change of Nkm by 11% and of NIC by 2%
Baselinew/o upper torso jacket bolts
Upper neck Fx Upper Neck My
Head contact
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