High Fidelity FE Dummy Models for CAE Vehicle Safety Analysis
In 2017, by contractual agreement with ATD-MODELS GmbH, CDH AG acquired the rights to market, distribute and support ATD Hybrid 3 dummy and finite element (FE) impactor models in North America and Japan. ATD-MODELS GmbH is a specialist in the development of high-quality FE models for vehicle safety analysis. The company was founded in 2009 by experts with years of experience in dummy development and occupant-safety simulation. ATD-MODELS GmbH develops highly accurate FE models in close cooperation with the German and other world-wide automobile industry partners. ATD FE models are used in the virtual development process for occupant and pedestrian protection engineering calculations.
ATD MODEL of the SAE J826 H-Point-Manikin
The ATD-HPM is based on advanced modelling techniques resulting in a very realistic FE model of the SAE J826 H-Point-Manikin. The model allows users to accurately position the dummy and perform virtual crash measurements in CAE. Areas of applications include finite element simulations for seat configurations and dummy positions, for example, the back-set for whiplash. ATD-HPM FE models are available for hardware configurations with white or red pans.
Some characteristics of the ATD-HPM are:
- A realistic implementation of the geometry and mass distribution of the hardware manikin
- Pre-processor dialog for calibration according to the scales on the hardware
- Detailed implementation of the setup scales, which allows easy comparisons to readings on hardware
- Two models (dependent on hardware) are available:
- ATD-HPM with white pans
- ATD-HPM with red pans
FE-Solver
- ANSYS LS-DYNA®
- Dassault Systèmes ABAQUS®
FE Pre-Processors
- GNS Generator4
- Beta CAE Systems ANSA
- ANSYS LS-PrePost
- Altair HyperMesh
- Oasys PRIMER
ATD Models Features:
- High accuracy owing to physics-based modeling techniques
- FE models available for industry standard explicit FE codes ABAQUS*, LS-DYNA* and PAM-CRASH*
- Commonality of modeling standards for all dummy models
- Uniform discretization, nomenclature and numbering systems
- Same scripts for pre and post processing
- Same session file and application procedures
- Full utilization of code-specific features of each solver
Advantages to Users:
- Systematic title nomenclature refers to the assembly groups
- Prefix in each title description allows a fast adjustment to the nomenclature of the load case
- Numeration not overlapping the assembly groups
- Advantage in pre and post processing
- Allows selection of assembly parts and groups
- Each assembly group close defined for itself
- Definition regarding the master, e.g. contacts relate to the assembly group
* The trade names are the property of the owning companies.
