ES-2re 50th Male Side Impact

Available Product Lines

  • 175-0000-H (ATD Assembly)

Overview

The ES-2re Side Impact Dummy represents a 50th percentile adult male, without lower arms. Masses and inertia of dummy parts are based on known anthropomorphic data. The total mass of the dummy (including rib displacement transducers, force transducers in the abdomen, pubic symphysis force transducer, and suit) is 72.0 ± 1.55 kg.

Simulation Models

Humanetics offers highly detailed and fully validated Finite Element Models of its dummies in the codes LS-DYNA, PAM-CRASH, ABAQUS and RADIOSS, along with FE modeling consultancy services.

Dummy Features

Head and Neck

The head is based on a 6-axis Hybrid III 50th percentile head comprised of an aluminum skull covered by a pliable vinyl skin. The changes with respect to the Hybrid III head are in the head-upper neck load cell interface and the mass. The mass of the combined head and upper neck load cell is tuned. At the head-neck interface, a 6-axis Upper neck load cell is mounted on the skull base. The interior of the skull is a cavity in which accelerometers can be located. Access is provided by removal of a skullcap at the back of the head.

Shoulder

The shoulder box mainly consists of an aluminum spacer block and two PTFE coated aluminum plates on the top and bottom of the spacer block. The shoulder box is attached to the top face of the spine box, which is inclined 5 degrees backwards.

Thorax and Abdomen

The ES-2re dummy incorporates a rear rib extension bracket on the impact side of each rib that together with a rear rib extension guide provides more realistic interaction with vehicle seatbacks. Roller bearing guidance of rib extension were added in the backplate. A new backplate load cell was introduced. The central part of the abdomen section is a metal drum positioned around the lumbar spine and rigidly attached to the T12 - load cell (or its structural replacement) at the bottom side of the thorax. The drum is covered by foam. At both sides of the foam covering, a curved slab of leadpellet- filled foam is integrated to obtain the required inertial mass and viscoelastic performance. The foam allows a penetration of 40 mm before ‘bottoming out’.

Arms

The ES-2re arm consists of a plastic skeleton covered by flesh-simulating foam and a plastic skin. The upper part of the arm is made of a high energy absorbing solid foam, while the lower part is constructed of soft foam. The arm is attached to the end of the shoulder clavicle.

Pelvis

The pelvis contains two iliac wings that are made of plastic resin. The two iliac wings are linked together at the pubic symphysis by a force transducer or a transducer replacement. At the rear of the pelvis, the iliac wings are attached to each side of the sacrum block.

Legs

The legs consist of a metal skeleton covered by flesh-simulating polyurethane covering. The joints at hip, knee and  ankle allow realistic motion of the leg parts. The legs are of the standard Hybrid II design, except for the femur bone and the thigh flesh. These parts are modifi ed to obtain a more humanlike mass distribution over the rigid bone structure and the soft flesh simulation. The flesh part is increased in mass and the femur bone is decreased in mass. The mass shift is approx. 2.75 kg. This modification is introduced to achieve a more humanlike knee-to-knee interaction performance.

Technical Specifications

Instrumentation

Location Description Channels
Head: 3 Uni-axial Accelerometers Ax, Ay, Az
Neck: 6-Axis Upper Neck Load Cell
6-Axis Lower Neck Load Cell
Fx, Fy, Fz, Mx, My, Mz
Fx, Fy, Fz, Mx, My, Mz
Shoulder: 3-Axis Load Cell Fx, Fy, Fz
Thorax:
 
2-Axis angle indicator
4-Axis Back Plate Load Cell
Tri-axial Accelerometers or 3 Uni-axial at T1 Shoulder
3 Uni-axial Accelerometers at T12
Uni-axial Accelerometers on each Rib
3 Linear Potentiometers, one each Rib
θx, θy
Fx, Fy, My, Mz
Ax, Ay, Az
Ax, Ay, Az
Ay
Dy
Abdomen:
 
4-Axis T12 Load Cell
Uni-axial, 3 Load Cell
Fx, Fy, Mx, My
Fy
Pelvis:
 
2-Axis angle indicator
3-Axis Lumbar Spine Load Cell
1 Uni-axial Pubic Sumphysis Load Cell
Tri-axial Accelerometer or 3 Uni-axial Sacrum Block
θx, θy
Fy, Fz, Mx
Fy
Ax, Ay, Az
Legs: 6-Axis Femur Load Cell Fx, Fy, Fz, Mx, My, Mz
 

Test Equipment

The following fixtures are required to calibrate and set up this Dummy:
Location Description
Head: Head Drop Test Fixture
Head Drop Bracket
Head Positioning Gage
Neck: Neck Pendulum Test Fixture
EuroSID Headform
Thorax: Thorax Test Fixture
Chest probe Assembly
Face Impactor Assembly, Abdominal
Teflon Sheet
Rib Module: Thorax Cert. Dropping
Test Fixture Assembly

Assembly Weights

Part Weight (kg) Weight (lbs)
Head Assembly 4.0 ± 0.20 8.18 ± 0.4
Neck Assembly 1.0 ± 0.05 2.20 ± 0.1
Torso Assembly 22.4 ± 1.00 49.40 ± 2.2
Arm Assembly, Left 1.3 ± 0.10 2.90 ± 0.2
Arm Assembly, Right 1.3 ± 0.10 2.90 ± 0.2
Abdomen 5.0 ± 0.25 11.00 ± 0.5
Leg Assembly, Left 12.7 ± 0.60 2.80 ± 1.3
Leg Assembly, Right 12.7 ± 0.60 2.80 ± 1.3
Pelvis 12.0 ± 0.60 26.50 ± 1.3
Total Weight 72.4 ± 1.20 159.60 ± 2.6

External Dimensions

Description Dimension (in) Dimension (mm)
Total Sitting Height 35.8 ± 0.4 909 ± 9
Seat to Shoulder Joint 22.2 ± 0.3 565 ± 7
Seat to Lower Face of Thoracic Spine Box 13.8 ± 0.2 351 ± 5
Seat to Hip Joint (center of Bolt) 3.9 ± 0.1 100 ± 3
Sole to Seat, Sitting 17.4 ± 0.4 442 ± 9
Head Width 6.1 ± 0.1 155 ± 3
Shoulder/Arm Width 18.5 ± 0.4 470 ± 9
Thorax Width 12.9 ± 0.2 327 ± 5
Abdomen Width 11.0 ± 0.3 280 ± 7
Pelvis Lap Width 14.4 ± 0.3 366 ± 7
Head Depth 7.9 ± 0.2 201 ± 5
Thorax Depth 10.5 ± 0.2 267 ± 5
Abdomen Depth 7.8 ± 0.2 199 ± 5
Pelvis Depth 9.5 ± 0.2 240 ± 5
Back of Buttocks to Hip Joint (center of bolt) 6.1 ± 0.2 155 ± 5
Back of Buttocks to Front Knee 23.9 ± 0.4 606 ± 9