Workshop 1: Experimental Modal Analysis

Objectives: In this workshop, participants will create an experimental database of transfer functions obtained using the roving hammer technique on a structure. Using this database, participants will determine the structure's natural frequencies and associated modal damping, visualize the structure's operational deflection shapes, and extract experimental mode shapes using typical experimental modal analysis (EMA) algorithms. These results will then be objectively compared to models (either analytical or numerical with finite element method) by calculating indicators such as the MAC (modal assurance criterion).

Keywords: experimental modal analysis, impact hammer, accelerometer, transfer function, coherence, reciprocity, natural frequency, damping, eigenmodes, modal assurance criterion.

Workshop 2: Full-Field Measurements by Laser Vibrometry and wavenumber analysis

Objectives: Handling of the laser vibrometer tool for full-field measurement. Visualization of frequency responses and operational deflection shapes. Wavenumber analysis (2D Fourier). Identification of equivalent bending stiffness on several structures (plate/beam: isotropic/anisotropic/multilayer/honeycomb/architectured, etc.).

Keywords: vibrometer, operational deflection shapes, wavenumber, equivalent bending stiffness, complex structures

Workshop 3: Acoustic Antennas in a Semi-Anechoic Chamber

Objectives: To be detailed.

Keywords: To be detailed.

Workshop 4: Acoustic Power Measurement in a Reverberant Room and a Semi-Anechoic Chamber

Objectives: To be detailed.

Keywords: To be detailed.

Workshop 5: Characterization of Acoustic Level Reduction Solutions (Absorbent Materials, Helmholtz Resonators)

Objectives: To be detailed.

Keywords: To be detailed.

Workshop 6: Vibration Measurements Using PVDF Film and Piezoelectric Sensors

Objectives: To be detailed.

Keywords: To be detailed.

 

Workshop 7: Nondestructive testing (ultrasounds)

Objectives: To be detailed.

Keywords: To be detailed.