ATD1 Simulation

Tests used to validate models:

  • Pendulum testing at BMW testing facility.
  • SFI 38.1 sled testing
  • SABS Sled Testing
  • Leatt®-Lab physical testing
  • Research Papers – External
  • Other published test results


Typical simulation parameters:

  • Contact definitions
  • Friction constants
  • Material stiffness
  • Joint properties


Able to have iterative test runs - decrease cost or time of physical testing and also to simulate real accidents.

Simulation


Simulations

Simulations

Simulation of BMW pendulum tests (conducted at Munich University, Germany) at Leatt®-Lab using MSC. ADAMS LifeMOD™


simulation

Simulation

Good correlation of bending moments (44 Nm vs. 38 Nm peaks) in simulation and physical test validating the simulation model.


Simulations

Simulations

Simulation of SFI 38.1 sled test (conducted at Delphi Test Centre, Vandalia, Ohio, USA) using the same H-III 50th percentile ATD as in the pendulum simulation.

70 G impulse over a 60 msec duration, simulating a frontal impact at about 200 mph in a typical NASCAR crash.


Simulaton SFI 38.1 Sled Test

Good correlation of upper neck bending moment further validates the model.


Simulations


Simulations


In addition Nij values were within 0.2 of each other for the simulation model and the sled test, showing a deviation of less than 3.5 %, subsequently validating the model.