ANSA & META Tutorials PEDESTRIAN TOOL

In this application example the functionality of the ANSA and ΜETA Pedestrian tool is going to
be demonstrated. This is a complete tool (from pre to postprocessing) where the user can set up and evaluate a Pedestrian Safety test procedure. In the current tutorial a Headform is going to be positioned on a number of impact points whose position is calculated for the EUPhase 2 (GTR 9) protocol. The basic steps of the tutorial, are:
1. Creation of reference lines
2. Determination of target points
3. Positioning of the Headform on the target points

Following the completion of this tutorial, the post process of the results using ΜETA for Headform,
Legform and Upper leg will be demonstrated.

The Pedestrian function of ANSA is a tool that enables the user to set up a complete test for
pedestrian protection, according to EuroNCAP v8.x, v7.x and v5.x, EU phase 1 and 2, JNCAP, and
TRIAS63.
The EU phase 2 (GTR 9) sets out the basic legal requirements for the protection of pedestrians and
other vulnerable road users in the form of tests and sets the limiting values for the type of vehicles
and of frontal protection systems.
This protocol also aims to encourage improvement of vehicle performance regarding pedestrian
safety through leg form, upper leg form and child/adult head form testing.

This tutorial does not require an in-depth knowledge of the protocols and the regulations, although
the user should be familiar with basic ANSA and META terminology and functionality. The main
steps of the Pedestrian safety tests are explained during the tutorial. The Pedestrian tool is a
common ANSA tool for all crash decks, so there is no need for the user to be familiar with a
specific solver.

The functionality of the Pedestrian Tool is based on using pre-defined SETs in order to create
Reference Lines and Target points. As a minimum for accurate results, the tool requires the
definition of at least the SETs presented on the image above, which include the Headform, the
Windscreen, the Bonnet and the Hard Parts.
During this tutorial 2 different tests are going to be demonstrated for defining the Target points,
one for the EU Phase 2 protocol, where the Reference Lines are created first, and then the Target
points are defined, and one for the EuroNCAP v8.x protocol, where no Reference Lines are needed,
as the Target points are created directly when “marking” the vehicle.
In both tests, the Headform is going to be placed on the detected Target points which are located
on the bonnet, fenders and windscreen of the vehicle.

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