We are proud to inform that our company will made Condition Based Maintenance implementation on board sixteen vessels for the new client. Past weeks there was several services which we provide all over the world – Portugal, Germany, Dubai, China, France and Kuba. Mostly our engineers were providing vibration and thermography measurements. During services they proved that they are multitasking – one team made a demonstration measurement on vessel board with whole lecture, also they have made a calibration for measurement equipment Marvib and they helped crew to eliminate their problems with device maintenance. Our technical director Ryszard Chuchra had an open lecture for 2nd engineers and students from Gdynia Maritime University about our company. Following issue was described:
- Info Marine introduction;
- Classification rules of CBM
- Info Marine model of implementation of PMS/CBM.
- Measurement tools used
- Examples of engine and compressor diagnostics.
There was one service which happened to be very quaint, please find very short describe below (whole problem description you will find in case study).
Our company was asked by one of our customer for help with serious problem they have faced related to diesel generators. Due to problem they had, there was the necessity to replaced damping elements very often- even every few months which was very inconvenient . Our help was highly needed by customer and also shipbuilder because the vessel was still on guaranty period and the previous action which was taken did not resolve the problem. Our engineer arrived to the vessel and start with crosscheck of diesel generators condition using data collector. During vibration measurements he established that results shows no abnormalities, so he decided to check all exhaust lines mounting elements and dampers by multichannel measurements. He found that some of the dampers vibration level were over 2 times higher than the DNV limit for cracks development in steel. After discussion with shipbuilder he perform the additional measurement- hammering test, which suppose to help confirm natural frequencies. Meantime there was another one test – vibration measurements with additional 300kg weight mounted to separate natural frequencies from exhaust gas pulsation frequencies. Performed test give very good result – vibration level were reduced from 84mm/s to 29 mm/s(DNV limit: 45mm/s of Velocity 4-200Hz). Problem were found and customer was satisfied with our service.