Data Preprocessing for Vibration Analysis: Application in Indirect Monitoring of ‘Ship Centrifuge Lube Oil Separation Systems’

Air quality can be affected by merchant ships, so it is important to regulate emissions that are produced, as well use energy efficiently. In this sense, the cleanliness of oil used in lubrication essential achieve a better and reduce losses marine engines. For that, vital carry out good maintenance strategies. Therefore, develop techniques allow condition monitoring during engine operation. order detect potential problems soon possible, common analyze vibratory signals, since sustainable changes rotating frequency its harmonics detected, which was objective work, analyzing time-frequency domain using wavelet packet transform. A methodology select optimal function (mother wavelet) best patterns monitor, determine state purifiers lube oils, carried out, including intelligent classification systems. Specifically, document considers centrifugal lubricant separators systems, these systems different mechanical