For years the risk analysis activities of TECSA S.r.l. have been supported by RAMS type studies for the investigation of issues closely connected with the systems being analysed but not limited to safety aspects Conducting RAMS (Reliability, Availability, Maintainability and Safety) type studies on systems, as well as on subsystems, modules and equipment has several purposes including:
Availability is defined as the probability that a system can be functional at a given time. Therefore availability is a function of the number of faults that have occurred in the system in the given time and the time required to restore the system to the functional state after each failure. The reliability of a system is the probability that the system remains functional for a given time. Maintainability of a system is a function of the time required to bring a faulty system to functionality. System availability is, therefore, a function both of reliability and of maintainability.
Tecsa S.r.l. is available to perform full RAMS studies that include:
With regard to the activities of specialist support for maintenance purposes TECSA S.r.l. has created for numerous clients the guidelines for completing the necessary work permits, work permits management practices (within the context of SGS for the Prevention of Relevant Accidents) and has prepared the appropriate forms. This is also to identify any specific needs arising from associated regulatory requirements (e.g. the management of operations in confined spaces, the management of activities of the maintenance of critical elements and systems such as fire apparatus, etc.).
It should be noted that studies relating to verification of availability and reliability are supported by simulation, a field in which TECSA S.r.l. has become highly specialised over the years; in particular, for RAMS analysis both computational codes that are self-produced with specialised platforms (Mathematica, Matlab, Simulink e Mathematica SystemModeler) and specialised trade computational codes are used, both in the verification of availability of a system and in the definition of the strategy of maintenance and the management of spare parts that are more appropriate such as Reliass RAMP. These codes allow, given the model of a system or process, rapid verification, often visually, of the behaviour of the same with respect to use cases and different scenarios in order to also highlight the limits in the stress conditions caused by limit situations possibly identified through specific methods (e.g. “What if?” analysis).