Experimental modal analysis

analyse modale expérimentale et essais modaux

The 6NAPSE Group design office carries out experimental modal analysis and testing to study the deformation of a mechanical structure.

What is modal analysis?
Modal analysis consists of studying the elementary deformation characteristics of a mechanical structure and modal parameters according to different boundary conditions.

Modal analysis and testing

Our design office offers to carry out modal analyzes on all systems.

Controlled excitation: Impact hammer, shakers, piezoelectric excitations, sound sources
Answer: Tri-axial accelerometers (96 simultaneous channels), or 3D scanning laser vibration meter.

6NAPSE Group is able to predict the in-service vibration behavior of a mechanical structure under artificial or real stress.

Modal analysis also makes it possible to determine the structural characteristics (natural frequencies, modal deformations, damping) and to readjust finite element calculation models.

Objectives of modal analysis

Visualize the eigenmodes of the structures and readjust the finite element models
Characterize the dynamic behavior of mechanical structures, equipment and materials
Identify resonance phenomena that could damage the mechanical structure
Predict the vibration behavior of a system to identify critical areas