Diagnosis – Failure analysis

The aim of our diagnostics is to identify the causes of breakdowns.

This is the first step; the final aim is to provide recommendations and find appropriate solutions. In agreement with your technical teams, we support you in finding, selecting and implementing the best compromise in line with your economic and technical constraints. Finally, we dimension the solutions and ensure on-site acceptance.

Vibratec applies a methodology that combines an experimental approach (on-site measurements) with a numerical approach (creation of a finite element model of the structure). Once the numerical model has been updated using the measurements, it is possible to assess the influence of modifications.

The main diagnostic techniques used are:

Pressure spectra analysis is a technique used to diagnose problems in hydraulic, pneumatic or fluid systems in general. It involves measuring fluid pressure at different points in the system and breaking down the pressure signals into different frequencies to obtain a pressure spectrum.

This enables us to understand the dynamic behavior of the structure, to determine the factors that can affect its service life and reliability, and to optimize its design and performance.

This technique is used to assess the deformation of a structure in service in response to actual loads and operating conditions. It involves measuring the deformations of the structure using sensors such as strain gauges, accelerometers, displacement transducers, etc., and analyzing them to determine the distribution of deformations in the structure.

Experimental modal analysis is a technique used to characterize the dynamic properties of a structure by measuring its response to vibration. It involves exciting the structure with a known vibration source, such as a hammer or electromechanical vibrator, and measuring the structure’s response using vibration sensors, such as accelerometers.

Computational understanding, also known as recalibration, is a technique used to improve understanding of the behavior of a physical system by using numerical simulations to compare experimental data and theoretical models. This technique can be used to verify or refine existing models, or to generate new, more accurate models.

Please contact us to discuss your failure analysis needs. We look forward to working with you to design and implement effective and optimized analysis programs.