Correlation calculation / testing

The 6NAPSE Group offers you dual experimental and simulation skills in the fields of vibroacoustics and reliability.

Calculation / Testing

Digital model

A central element of development is the use of the digital model. For OEMs and OEMs, designing a robust digital model is paramount. This robustness is obtained by a calculation/test correlation.

The advantage of simulation is that it allows a detailed analysis of the vibration behavior of the model and makes it possible to assess the impact of certain modifications to the product, but may not take into account all the parameters (imperfect boundary conditions for example) . A validation of the model must therefore be established.

For experimental tests, they guarantee that all the parameters are taken into account but are generally spatially poor in information and are not very suitable for product modification.

Correlation calculations / tests

The calculation/test correlation therefore makes it possible to combine the advantages of these two methods. A reliable numerical model can thus be obtained and on which it is possible to evaluate the impact of certain modifications.

With the competence of acoustic and vibration characterization and the competence of Modeling and Calculation, the 6NAPSE Group has all the tools to obtain a robust model, correlated with experimental tests.

Objective of the calculation / testing correlation

The objective is the validation of a numerical model on the basis of experimental tests. Thanks to this, it is then possible to virtually qualify a product or test improvements by iterating on the design (parametric study, design of experiments, topological optimization).

How do we proceed ?

We support our customers to define the appropriate experimental test for the calculation/test correlation of the product. Then from a CAD model, we carry out the modeling and the stages of registration of the model. The use of several tools, in particular the MAC (Modal Assurance Criteria) between the two modal bases (calculation and test), allow the validation of the registration.

The 6NAPSE Group supports you in the development phase of your project, to enable you to acquire a reliable digital model validated by means of experimental tests.

Key skills

Knowledge of vibration and acoustic phenomena
Implementation of specific tests for model registration on numerous test means (shakers, scanning 3D laser vibrometry, semi-anechoic chamber, etc.)
Mastery of calculation software to obtain a readjusted model
Use of specific tools for Calculation/Test correlation

Applications

Adjust joints and interfaces on complex models
Virtually qualify a product
Test improvements on a recalibrated model

OUR TECHNICAL MEANS

SCANNING LASER VIBROMETRY

CAE SOFTWARE