UNECE IG GTR9-PH2 TF-BTA FlexPLI behaviour in outer area 5 ... · FlexPLI Behaviour in Outer Area...
14
UNECE IG GTR9-PH2 TF-BTA FlexPLI behaviour in outer area 5 March 2013 Franz Roth AUDI AG on behalf of the Task Force “Pedestrians” of the European Automobile Manufacturers’ Association 1 TF-BTA-3-03
Transcript of UNECE IG GTR9-PH2 TF-BTA FlexPLI behaviour in outer area 5 ... · FlexPLI Behaviour in Outer Area...
-
UNECE IG GTR9-PH2 TF-BTA
FlexPLI behaviour in outer area
5 March 2013
Franz Roth AUDI AG on behalf of the Task Force “Pedestrians” of the European Automobile Manufacturers’ Association
1
TF-BTA-3-03
-
FlexPLI Behaviour in Outer Area
Aim of the study Comparison of the behaviour from FlexPLI and Human Model
THUMS in the outer area of the bumper
2 F. Roth, AUDI AG, 5.3.2013
TF-BTA-3-03
-
FlexPLI Behaviour in Outer Area
FlexPLI behaviour in area ≥ 30°
Impact positions Y500L (25°-tangent), Y600L (30°-tangent), Y700L (40°-tangent)
Strong lateral rotation of FlexPLI even at 25° as from 11 ms
30ms 40ms 50ms 24ms
10ms 15ms 20ms 0ms
25°
3
S. Derndinger, AUDI AG, 07.03.2013
30°
40°
TF-BTA-3-03
-
FlexPLI Behaviour in Outer Area
FlexPLI behaviour in area ≥ 30°
Impact positions Y500L (25°-tangent), Y600L (30°-tangent), Y700L (40°-tangent)
Strong lateral rotation of FlexPLI even at 25° as from 11 ms
4
S. Derndinger, AUDI AG, 07.03.2013
24 ms 40°: 26 mm
30°: 23 mm
25°: 21 mm
Elo
ngation M
CL [
mm
]
Time [ms]
TF-BTA-3-03
-
FlexPLI Behaviour in Outer Area
FlexPLI behaviour in area ≥ 30° Detail FlexPLI: knee movement at Y=500L (25°)
Tibia fixed: view of the relative movement of the femur
5
30ms 40ms 50ms 24ms
10ms 15ms 20ms 0ms
S. Derndinger, AUDI AG, 07.03.2013
TF-BTA-3-03
-
FlexPLI Behaviour in Outer Area
FlexPLI behaviour in area ≥ 30° Detail FlexPLI: knee movement at Y=500L (25°)
Tibia fixed: side view of the relative movement of the femur
femur turns relative to tibia additionally to the global lateral rotation
6
30ms 40ms 50ms 24ms
10ms 15ms 20ms 0ms
S. Derndinger, AUDI AG, 07.03.2013
TF-BTA-3-03
-
FlexPLI Behaviour in Outer Area
Comparison of THUMS / FlexPLI
Overlay of both legs
Comparison of rotation
7 F. Roth, AUDI AG, 5.3.2013
TF-BTA-3-03
-
FlexPLI Behaviour in Outer Area
Comparison of THUMS / FlexPLI
Overlay of both legs
Comparison of rotation Y500
8
S. Derndinger, F. Coulongeat, AUDI AG, 07.03.2013
TF-BTA-3-03
-
FlexPLI Behaviour in Outer Area
Comparison of THUMS / FlexPLI
Overlay of both legs
Comparison of rotation Y500
9
S. Derndinger, F. Coulongeat, AUDI AG, 07.03.2013
TF-BTA-3-03
-
FlexPLI Behaviour in Outer Area
Comparison of THUMS / FlexPLI
Overlay of both legs
Comparison of rotation Y500
10
30ms 40ms 50ms 24ms
10ms 15ms 20ms 0ms
S. Derndinger, AUDI AG, 07.03.2013
TF-BTA-3-03
-
FlexPLI Behaviour in Outer Area
Comparison of THUMS / FlexPLI
Overlay of both legs
Comparison of rotation Y600
11
S. Derndinger, F. Coulongeat, AUDI AG, 07.03.2013
TF-BTA-3-03
-
FlexPLI Behaviour in Outer Area
Comparison of THUMS / FlexPLI
Overlay of both legs
Comparison of rotation Y600
12
S. Derndinger, F. Coulongeat, AUDI AG, 07.03.2013
TF-BTA-3-03
-
FlexPLI Behaviour in Outer Area
Comparison of THUMS / FlexPLI
Overlay of both legs
Comparison of rotation Y600
13
30ms 40ms 50ms 24ms
10ms 15ms 20ms 0ms
S. Derndinger, AUDI AG, 07.03.2013
TF-BTA-3-03
-
FlexPLI Behaviour in Outer Area
Conclusions
Strong lateral rotation of FlexPLI even at 25° as from 11 ms
Increase of MCL elongation due to lateral und relative rotational effects of the impactor
Lateral rotation of the impactor relative to the car front enables more bending
Comparison with THUMS show that the impactor can not reproduce the behaviour of the human leg in the outer area
14 F. Roth, AUDI AG, 5.3.2013
TF-BTA-3-03
