DIGILIFE main function in terms of fatigue compares in real time the aging of the crane as a whole and of its kinematic chains with the overall conventional fatigue expected by the manufacturer during its design.
The aging of the crane as a whole is essential, but in order to be even more relevant, attention must be paid to the aging of each welded assembly constituting its structure. Thus, controls are better targeted and better anticipated.
DIGILIFEPLUS now makes it possible to process the residual life of welds identified as critical, by comparing their maximum calculated real life and the life consumed according to the usual supervision in real time.
Modelling, which is one of Aquass' specialties, makes it possible to define for each cycle, the extreme stresses and the stress spectrum factor of each assembly depending on the load. Aquass can therefore calculate the fatigue damage generated by each cycle, for each assembly.
DIGILIFEPLUS integrates the 3D modelling post treatment results, for calculating the residual life and the fatigue index of each assembly monitored.
Knowing these residual lifetimes in real time and on demand allows DIGILIFEPLUS to optimize the structure control plan established by Aquass, and to improve its relevance in terms of safety, taking into account the value of the actual fatigue index of each assembly identified as critical.
DIGILIFEPLUS becomes a management tool for the maintenance of structures, by establishing a reasonable and optimized control plan as it is based on the analysis of the real risks associated with fatigue damage.
Insurers being more and more sensitive to the conditions of organization and rigor for carrying out maintenance operations, especially after damage, this type of approach is likely to reassure them.