The dynamics laboratory analyses complex dynamical systems by employing unique mathematical, numerical and experimental methods. Using state-of-the-art software and hardware equipment, the laboratory provides better insight into the dynamics of mechanical systems. Areas of activity include: modeling, system identification, modal testing, validation (numerically) and verification (experimentally).
The dynamics laboratory capabilities include:
- Non-contacting measurements using laser-doppler vibrometry able to rapidly scan surfaces to obtain dispcement and velocity amplitudes of vibrating structures.
- Non-contacting sensors designed to work against non-planar surfaces provide means of measuring rotating structures.
- Piezoelectric transducers used for sensing and actuation.
- Active Magnetic Bearings performing as a non-contacting actuator able to exert magnetic forces on rotating machines.
- Measurement systems capable of sampling data at upto 4 MHz, capturing rapid dynamical phenomena.
- Rapid control and signal processing prototyping using dedicated DSP cards enables easy and fast “hardware in the loop” simulations of experiments.
- Numerical modeling by commercial software combined with custom-made codes.
- Optimization of dynamic performance and structural vibration.
The hardware and software equipment in the lab includes:
- Laser-Doppler Vibrometer (Polytec) with sacnning controller
- 2 Agilent VXI based systems, 8 & 16 input channels, 5 channel arbitrary waveform generator
- Digital Signal Processors: 4 Dspace active control and signal processing cards
- Active magnetic bearings (2 systems)
- Piezoelectric amplifiers/actuators/systems
- 8 channel signal processing filtters and 4 channel control fillter.
- Computer based high frequency 2 channel synchronized signal generator.
- Various contacting and non-contacting sensores.
- Softwares: MATLAB, Ansys, SDT (MATLAB Toolbox), SAMCEF (structural dynamics FE software incorporating gyroscopic effects).