MATHEMATICS, SIMULATION AND MODELLING

Virtual Performance Solution

4 February 2014

ESI

The ESI Group, has announced the latest release of Virtual Performance Solution (VPS), which the company claims delivers faster results in crash simulation. The new version also offers new approaches for modelling product assembly, for assessing Noise, Vibration & Harshness (NVH), and for predicting airbag opening behaviour more accurately.

VPS provides automotive manufacturers with a solution to improve passenger safety without slowing down new car developments.

Using a common core model for their simulations, engineering teams from various departments and from different geographical sites can collaborate efficiently towards the creation of virtual prototypes that can be used to predict the future behavior of parts or products in all domains of performance.

By taking account of manufacturing effects and the coupling between different physics, even at very early stages of the design process, manufacturers can improve their process efficiency by decreasing the number of real prototypes built and tested.

Depending on the industry, domains of application may include structural stiffness and strengt, crash, occupant safety, NVH & interior acoustics, comfort, durability, and high velocity impact.

A new execution scheme supports Multi-Model Coupling, the new version of VPS is simpler to set-up, offers easier task submission, and delivers significantly faster calculations the company claims.

The software introduces special 3D connection elements. These enable a more precise modelling of assembled parts so engineers can more accurately predict behavior in all performance domains, including crash, NVH, stiffness and strength.

The latest release includes an enhanced Finite Pointset Method (FPM) module including turbulence models for gas flow. The module enables increased precision in the simulation of even the most complex airbag systems, notably curtain airbags.

VPS also comes with improvements for NVH assessment. A new method to evaluate Random Response enables vehicle engineers to achieve a more consistent vehicle by providing more precise prediction of how different road loads and other conditions influence the performance of parts or product. A new scheme for non-linear transient implicit calculations is added to improve the accuracy of durability and strength predictions.

Click here to find out more