MADYMO

Human models

   

MADYMO (Active) Human models

Thirty years’ proven track record in automotive safety allows us to offer a powerful and extensive Human Model database offering an excellent level in biofidelity, variety in application and CPU efficiency.

MADYMO human models provide a tool set capable of realistic human response prediction for a broad range of loading conditions no physical crash test dummy exists for. The MADYMO human model portfolio comprises both passive and active models. This means spine joint restraints and muscles combine passive stiffness characteristics and active control to realistically represent responses of living human beings.

Multidirectional approved
MADYMO human models can be used for front, side, rear and vertical impact as well as intermediate impact directions and more complicated scenarios like rollover. Consequently, these human models are more biofidelic than crash-test dummies and their virtual counterparts, which are developed for a single loading direction only. While crash dummy models are merely used for simulations of standard (regulatory) impact tests, the MADYMO human models have been developed for the evaluation and optimisation of passive and active restraint systems in a wider range of (real-world) loading conditions. Moreover, the MADYMO active human model is currently the only human model on the market that can accurately simulate occupant behaviour in pre-crash emergency braking and crash avoidance manoeuvres.

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Model validation

The reliability of our models is your key benefit. Our human model database has been validated on segment as well as on full body level, against an extensive set of volunteer- and PMHS (Post Mortem Human Surrogates) tests. A range of sled tests and blunt impact tests have been used in various loading directions and for various body parts to validate the models. All models have demonstrated capability to predict kinematics and accelerations and display realistic thorax compliance.

Benefits

  • More biofidelic and broader applicable than crash dummy models
  • Validated for multidirectional load/impact
  • Passive and active muscle models
  • Scalable to different body sizes
  • Predicts post-failure response (e.g. leg fracture)

Active adult human models

The Active Human model is developed and validated for pre-crash simulation, occupant and pedestrian impact simulation and for simulation of vibration transmission as related to seating comfort. The validation for pre-crash simulation includes frontal (forward and rear) as well as lateral validation. Full details on the validation of the Active Human model is given in the validation Q-report.

Passive adult human models

The facet occupant models are developed and validated for impact simulation and for simulation of vibration transmission as related to seating comfort. The models are available in the 5%ile, 50%ile and 95%ile versions.

Child human models

The seated human child facet models are available for the 1.5 year old child, 3 year old child, 6 year old child and the 10 year old child. These models find their application in in-crash restraint systems design and child occupant response evaluation to higher-severity impacts.

Pedestrian human models

The ellipsoid human pedestrian models are available in for the 3 year old child and 6 year old child as well as the 5%ile, 50%ile and 95%ile adult occupant variants and find their application in pedestrian impact studies. As described in the Euro NCAP TB-013, these models can be used for pedestrian impact studies provided that model version 4.2 (MADYMO version 7.3) or higher is used.

Model validation

To ensure the biofidelity of the human models, an extensive evaluation of human model responses has been performed. A range of sled tests and blunt impact tests have been used in various loading directions and for various body parts to validate the models. All models have demonstrated capability to predict kinematics, body loads,moments, deformations and display realistic thorax compliance. They have also been validated for vibration loading as well as for seat pressure prediction on rigid seats as well as deformable seats. The FE arm and leg have been validated for long bone bending & fracture with airbag loading. Please check our validation Q-report for detailled validation information.