Modal Analysis

The experimental modal analysis identifies the main vibrational characteristics of mechanical structures such as natural frequencies, damping and modes of vibration.

Typical Modal Testing

• Impact hammer excitation

• Shaker based excitations (sine, sweep/chirp, random)

Dynamic Tests

Using shaking tables and control systems, closed loop vibration tests are performed to verify the resistance to dynamic excitations.
Typical tests:

• sine excitation (amplitude and frequency control)

• • fixed frequency

  • time varying frequency (Oct/min)

  • Track and Dwell

• impulse tests: amplitude, pulse type (ISO, MIL-STD,...), and duration control

• random: PSD user-defined, real time closed loop control

• shaking table with or without slip-table (up to 40kN, 100g RMS)

Vibration measurements (In lab or on the field)

Vibration measurements: displacement, velocity, acceleration; determination of: spectra, max amplitude, RMS (bandwidth analysis).

Non-contact measurements: laser-Doppler vibrometer, laser telemeters
Typical application in Machine monitoring, Fault detection, Diagnostics, Prognostics

Climatic Test Chamber

Temperature (Humidity) & Vibration Combined Environmental Test Chamber (-70 +180°C)