CRABI 18 Month Old Child

Available Models

  • Humanetics - 930910-000

Overview

The CRABI 18 Month Old dummy has been developed at Humanetics to evaluate small child restraint Systems in automotive crash environments, in all directions of impact, with or without air bag interaction.

Basic anthropometry for this important new test device was taken from the University of Michigan Transportation Research Institute Report 85-23. Weight distribution and scaling methods for the infant were approved by the Society of Automotive Engineers' (SAF) Infant Dummy Task Group.

The dummy weighs 11.5 Kg and has 813 MM standing or 505 MM sitting height. The Hybrid III-like neck and lumbar spine are laterally notched to reduce lateral stiffness. The shoulders have ample support for durability and human-like performance in areas where seatbelt webbing may be placed. In addition, rubber elements are used in each joint to improve biofidelity and to give CRABI infant-like range of motion.

The Humanetics design meets alt the SAE Infant Dummy Task Group anthropometry, biomechanical and instrumentation requirements. The instrumentation design incorporates six load cells to provide load measurement at the occipital condyles, cervical vertebrae-7, lumbar vertebrae-S, shoulders and pubic locations. Accelerometers are used to measure head, chest acceleration and head angular acceleration. All instrumentation is easily accessed.

Test Dummy Measurement Capabilities

  • Head Angular Acceleration 1 channels
  • Upper Neck Force and Moments 6 channels (IF-954)
  • Lower Neck Forces and Moments 6 Channels (IF-954)
  • Shoulder Forces 2 channels each (IF-331)
  • Chest Triaxial Acceleration
  • Lumbar Spine Forces and Moments 6 channels (IF-954)
  • Pelvic Triaxial Acceleration
  • Pelvic Pubic Forces 2 channels (IF-534)

Technical Specifications

 

Assembly Weights

Part Weight (kg) Weight (lbs.)
Head 2.64 ± .05 5.81 ± .11
Neck 0.38 ± .03 0.84 ± .07
Torso 4.45 ± .10 9.79 ± .22
Arm, Left or Right 0.64 ± .03 1.41 ± .07
Leg, Left or Right 1.25 ± .03 2.75 ± .07
Total Weight 11.22 ± .30 24.7 ± .66

External Dimensions

Description  Dimension (in.)
Total Sitting Height 19.70 ± .30
Shoulder Pivot Height 11.70 ± .30
Hip Pivot Height 1.40 ± .20
Hip Pivot from Backline 1.80 ± .20
Shoulder Pivot from Backline 2.10 ± .20
Thigh Clearance 3.00 ± .20
Back of Elbow to Fingertip 8.30 ± .30
Shoulder Pivot to Elbow Flesh 5.40 ± .30
Elbow Rest Height 5.80 ± .30
Buttock to Knee Length 9.00 ± .30
Popliteal Height (ref. to seat) 6.40 ± .30
Knee Pivot Height 7.50 ± .30
Buttock Popliteal Length 7.20 ± .30
Chest Depth with Jacket 5.00 ± .30
Foot Length 3.90 ± .20
Stature 32.20 ± .50
Buttock to Knee Pivot Lenght 8.10 ± .20
Hip Breadth 6.90 ± .30
Shoulder Breadth 8.80 ± .30
Foot Breadth 1.80 ± .20
Chest Circumference with Jacket 18.80 ± .50
Waist Circumference 17.50 ± .50
Reference Location for Chest Circumference & Chest Depth 10.30 ± .20
Reference Location for Waist Circumference 5.10 ± .20