MAMA2B

Available Models

  • Humanetics - 262-0000 (ATD Assembly)

Overview

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

  • FTSS Test Equipment Matrix coming soon...
  • Denton Test Equipment Matrix coming soon...
The following fixtures are required to calibrate and set up this Dummy:
 
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