Standardization of X-Attribute body assessment by coupling FEM and MKS

As presented by Ms. Emilie Debauche from Arrk P+Z Engineering, at the 8th BEFORE REALITY Conference.

The procedure described is completely new for attributes such as Vehicle Dynamics, Vehicle NVH and RLD working with MKS. Its development was completed in co-operation with BETA CAE Systems. The process of creating standardized trimmed body control models within the Design Integration (DI) department and delivering these models to the vehicle attributes teams for evaluation (e.g. Body NVH and Safety) within a rigid time frame is well established.

The attributes report their assessments and recommendations on the control models simultaneously to program management.

For attributes using the MKS solver, issues occurred in the process which caused delays. To overcome these issues, DI developed a new process that incorporates smoothly FLEX body analysis models using MKS solver.

Development of this new process needed to resolve certain shortfalls, such as the adaption to weight targets, the dis-assembly into individual structural components, and the animation of analysis results in Adams.

The first steps of the process use ANSA, to prepare the model for the mnf file generation.

This presented the first challenge to get a display model into the mnf file created with the NVH console. EPILYSIS was updated to achieve this. Other challenges resolved were the creation and viewing of animations and how to speed up and simplify the connection of different modules in light of changes, This presentation gives an overview of the developed process, explains its details and gives an outlook on future steps.