THOR-M 50 th Male ATD Repeatability and Reproducibility in Qualification Tests Joseph McFadden, Kevin Moorhouse NHTSA Vehicle Research & Test Center Alena Hagedorn Transportation Research Center, Inc. Under Contract to NHTSA Vehicle Research & Test Center THOR Public Meeting January 20, 2015 Washington, D.C.
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THOR-M 50 Male ATD Repeatability and Reproducibility in …€¦ · CV (%) 2.0% 0.6% Mean-6485.70 -20.42 Std. Deviation 181.84 0.21 CV (%) 2.8% 1.0% THOR M Knee Slider- Right (2.20
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THOR-M 50th Male ATD Repeatability and Reproducibility in
Qualification Tests Joseph McFadden, Kevin Moorhouse
NHTSA Vehicle Research & Test Center
Alena Hagedorn Transportation Research Center, Inc.
Under Contract to NHTSA Vehicle Research & Test Center
THOR Public Meeting January 20, 2015 Washington, D.C.
R&R (Qualification Tests)
• Initial basis for all tests are existing THOR Qualification Procedures (GESAC/Humanetics)
• Used revised and refined procedure as needed
• For each test both a qualitative response comparison and a quantitative response comparison are provided.
This is a U.S. Government Work not subject to copyright protection in the U.S. It may be copied and distributed without permission and without limitation.
This is a U.S. Government Work not subject to copyright protection in the U.S. It may be copied and distributed without permission and without limitation.
• Quantification of R&R for each test
– ) • is standard deviation of repeated responses • is mean of repeated responses
– Repeatability: Calculate percent coefficient of variation (%CV)
of peak value for each individual dummy response (5 tests).
– Reproducibility: Calculate percent coefficient of variation (%CV) of peak value for all three dummy responses combined (15 tests).
R & R %CV Summary Test Repeatability Reproducibility Parameter
9207 9798 9799 AllHead Impact Peak Force (N)Head Impact Time of Peak Force (ms)Face Disc Peak Force (N)Face Disc Time of Peak Force (ms)Face Bar Peak Force (N)Face Bar Time of Peak Force (msec)Neck Frontal Peak OC Moment (N-m)Neck Frontal Time of Peak OC Moment (ms)Neck Extension Peak OC Moment (N-m)Neck Extension Time of Peak OC Moment (ms)Neck Left Peak OC Moment (N-m)Neck Left Time of Peak OC Moment (ms)Neck Right Peak OC Moment (N-m)Neck Right Time of Peak OC Moment (ms)Upper Thorax Peak Force (N)Upper Thorax Avg. Peak X Deflection (mm)Upper Abdomen Peak Force (N)Upper Abdomen Deflection at Peak Force (mm)Lower Abdomen Peak Force (N)Lower Abdomen Deflection at Peak Force (mm)Left Femur Peak Force (N)Left Femur Time of Peak Force (ms)Right Femur Peak Force (N)Right Femur Time of Peak Force (ms)Left Knee Slider Peak Force (N)Left Knee Slider Deflection at Peak Force (mm)Right Knee Slider Peak Force (N)Right Knee Slider Deflection at Peak Force (mm)
R & R %CV Summary Head
Test Repeatability Reproducibility Parameter
9207 9798 9799 AllHead Impact Peak Force (N)Head Impact Time of Peak Force (ms)
R & R %CV Summary Face
Test Repeatability Reproducibility Parameter9207 9798 9799 All
Face Disc Peak Force (N)Face Disc Time of Peak Force (ms)Face Bar Peak Force (N)Face Bar Time of Peak Force (msec)
R & R %CV Summary Neck
Test Repeatability Reproducibility Parameter9207 9798 9799 All
Neck Frontal Peak OC Moment (N-m)Neck Frontal Time of Peak OC Moment (ms)Neck Extension Peak OC Moment (N-m)Neck Extension Time of Peak OC Moment (ms)Neck Left Peak OC Moment (N-m)Neck Left Time of Peak OC Moment (ms)Neck Right Peak OC Moment (N-m)Neck Right Time of Peak OC Moment (ms)
R & R %CV Summary Upper Thorax
Test Repeatability Reproducibility Parameter9207 9798 9799 All
Upper Thorax Peak Force (N)Upper Thorax Avg. Peak X Deflection (mm)
R & R %CV Summary Abdomen
Test Repeatability Reproducibility Parameter9207 9798 9799 All
Upper Abdomen Peak Force (N)Upper Abdomen Deflection at Peak Force (mm)Lower Abdomen Peak Force (N)Lower Abdomen Deflection at Peak Force (mm)
R & R %CV Summary Legs
Test Repeatability Reproducibility Parameter9207 9798 9799 All
Left Femur Peak Force (N)Left Femur Time of Peak Force (ms)Right Femur Peak Force (N)Right Femur Time of Peak Force (ms)Left Knee Slider Peak Force (N)Left Knee Slider Deflection at Peak Force (mm)Right Knee Slider Peak Force (N)Right Knee Slider Deflection at Peak Force (mm)
Summary R & R
Quantities represent the no. of % CV Ratings in each Category. Repeatability %CV are based on 5 tests, Reproducibility %CV are based on 15 tests.
THOR M 50th Body Region
E G M(A) U E G M(A) UHead 6 2Face 11 1 1 2 1Neck 24 6 2Thorax 6 2Abdomen 12 3 1Legs 23 1 7 1Total Qty. 82 2 21 5 2Total (%) 97.6% 2.4% 75.0% 17.9% 7.1%