MAMA2B - 262-0000
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MAMA-2B (Maternal Anthropometry Measurement Apparatus Version 2B) is a kit with pregnant abdomen and torso for a small pregnant dummy. It can be retrofitted to the standard Hybrid III small female dummy (H3-5th Female Dummy, P/N 880105-000-XH). The abdomen uses a fluid-filled silicone rubber bladder to represent the human uterus at 30-weeks gestation. Compared to the original pregnant abdomen, this design has improved geometry and improved impact response to a range of potential in-vehicle loading conditions.
The MAMA-2B is still a research and development product. It was developed by UMTRI and FTSS in 2001. Two IR-TRACCs have been added to this version to measure the chest deflection. The IR-TRACC rotation around Z axis also can be obtained by the potentiometer assembled to each IR-TRACC.
The total weight of the MAMA-2B dummy is 128 +/- 2 lbs., while the standard H3 5th percentile dummy weight is 108 +/- 2 lbs.
Technical Specifications
Instrumentation
| Location | Description | Channels |
|---|---|---|
| Head: | Triaxial Accelerometer Pack | Ax, Ay, Az (HIC) |
| Neck: |
Six-Axis Upper Neck Load Cell
Six-Axis Lower Neck Load Cell
|
Fx, Fy, Fz, Mx, My, Mz
Fx, Fy, Fz, Mx, My, Mz
|
| Thorax: |
Triaxial Accelerometers pack
Chest Displacement Transducer
|
Ax, Ay, Az
Dx (Std. Equipment)
|
| Thoracic Spine: | Five-Axis Thoracic Spine Load Cell | Fx, Fy, Fz, Mx, My |
| Lumbar Spine: | Five-Axis Lumbar Spine Load Cell | Fx, Fz, My |
| Pelvis: |
3 Uniaxial or 1 Triaxial Accelerometers
Uniaxial Iliac Wings Load Cell
|
Ax, Ay, Az
Fx (per side)
|
| Femur: |
Uniaxial Load Cell
Six-Axis Load Cell
|
Fx (per leg)
Fx,Fy,Fz,Mx,My,Mz (per leg)
|
| Knee: | Tibia/Femur Displacement (Knee Slide) | Dx (per knee) |
| Lower Legs*: |
Biaxial Knee Clevis Load Cells
Biaxial Upper Tibia Transducers
Triaxial Lower Tibia Transducers
|
Fx, Fz (per knee)
Mx, My (per leg)
Fy, Fz, Mx (per leg)
|
Test Equipment
| Location | Fixture | Description |
|---|---|---|
| Head | TE-100 | Head Drop |
| Neck |
TE-207
185-0000
|
Neck Pendulum
Neck Compression Tool
|
| Thorax |
TE-325
880995-801
|
Thorax Pendulum
Chest Depth Gage Assembly
|
| Knee |
TE-550
TE-517-100
TE-2506
|
Knee Impact/Knee Shear Test
Load Distribution Bracket
H-Point Locator
|
| Center of Gravity | TE-900 | Center of Gravity Measuring Fixture |
| External Dimensions | TE-1000 | External Dimensions Seat |
Assembly Weights
| Part | Weight (lb) | Weight (kg) |
|---|---|---|
| Head | 0 | 0 |
| Neck | 0 | 0 |
| Upper Torso | 0 | 0 |
| Lower Torso | 0 | 0 |
| Upper Arms | 0 | 0 |
| Lower Arms and Hands | 0 | 0 |
| Upper Legs | 0 | 0 |
| Lower Legs and Feet | 0 | 0 |
| Total Weight | 0 | 0 |
External Dimensions
| Description | Dimension (in) | Dimension (cm) |
|---|---|---|
| Head Circumference | 0 | 0 |
| Head Width | 0 | 0 |
| Head Depth | 0 | 0 |
| Erect Sitting Height | 0 | 0 |
| Shoulder to Elbow Length | 0 | 0 |
| Back of Elbow to Fingertip | 0 | 0 |
| Buttock to Knee Length | 0 | 0 |
| Knee Pivot Height | 0 | 0 |