Evaluation of the new Evaluation of the new certification test procedures certification test procedures Christian Gehre 2011-05-31
Evaluation of the new certification test procedures Christian Gehre 2011-05-31.
Mar 28, 2015
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Evaluation of the new certification test Evaluation of the new certification test proceduresprocedures
Christian Gehre
2011-05-31
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
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
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
Dummy artefactDummy artefact
Christian Gehre
2011-05-31
Christian Gehre, PDB
Dummy artefactsDummy artefactsDesign of the dummyDesign of the dummy
Upper torso jacket bolts Inner plates
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
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
EndEnd
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