Fatigue life analysis of 60 MW power generating ship deck Available to Purchase

Barge mounted power plant becomes an alternative solution for the distribution of electrical power in Indonesia. The vessel has 6 (six) generators for power generation supported by the main deck structure and should run continuously for 20 years without docking repair. This study is aimed to provide deck structural analysis to evaluate the actual stress and deformation, as well as the estimated fatigue life of the deck structure. The structural load of this deck structure comes from internal loading from generator vibrations and the external load of waves that occur on the ship. Structural analysis in this study provides simulation variations in the number of pillars for the six generators. This analysis uses the finite element method to investigate the structure performances of the deck. The structural deck and supporting pillars have previously been designed based on the buckling stress calculation of the applicable rules. Based on the finite element analysis, the highest stress value in the initial design is 18.875 MPa with a deformation value of 0.098 mm and has the lowest fatigue life of 3.843 years. The alternative structure has the highest stress value of 14.092 MPa with a deformation value of 0.040 mm and has a fatigue life of 21.35 years.