Description

s/s rack

CEIT has a wide experience in the mechanical design, and in the analysis of noise and vibrations. The main characteristics are described below:

Experimental analysis of N&V

  • Measurements in laboratory and in real applications.
  • Force, acceleration, acoustic pressure, acoustic intensity, FRFs, transmissibility, etc.
  • Modal analysis.
  • Noise and vibration transmission path analysis
  • Instrumentation of components, vehicles and structures

Monitoring of dynamic behaviour

  • Monitoring and control, based on dynamic behaviour.
  • Detection of malfunctions from the analysis of recorded acceleration and/or acoustic pressure signals.

Dynamic characterisation of individual components

  • Such as: springs, hydraulic dampers, air springs, rubber and/or viscoelastic components.
  • Determination of static and dynamic behaviour.
  • Development of lumped models which represent observed characteristics.
  • Availability of testing machines and test benches.

Finite Element Modelling

  • Structural calculations of elements and systems: stress and strains, resonance frequencies, vibration modes, FRFs, stiffness of components, fluid-structure interaction, connections of subsystems, etc.
  • Acoustic calculations.

Simulation of machines, vehicles and systems

  • FEM, matlab, simulink, simpack.
  • Integration of equations of motion.
  • Analysis of influence of parameters in the dynamic behaviour.

Design of tailored test benches

  • Analysis of complex systems.

Examples of projects

  • Characterization of rubber/viscoelastic mounts and connections. Advanced rubbers: magneto-sensitive rubbers.
  • Design of tuned vibration absorbers.
  • Vibro-acoustic analysis of the nucleus of a transformer.
  • Development of a lumped model for: air-spring, damper.
  • Modal analysis of the S/S Rack structure of the ISS and validation of the analytical model developed by Sener.