QUAY CRANE FAILURE ANALYSIS WITH FMEA METHOD

Svaki veliki sustav trebao bi prepoznati i znati upravljati svojim rizicima. Problem istraživanja u ovom radu su kvarovi na kontejnerskim dizalicama, jer je za obalne dizalice u procesu prekrcaja na kontejnerskom terminalu izuzetno važno prepoznati kritične kvarove i pridati im pozornost prilikom redovnog odnosno preventivnog održavanja. Da bi se operativni proces prekrcaja na terminalu odvijao bez zastoja uz osiguranje sigurnosti osoblja te na vrijeme prepoznali kvarovi koji predstavljaju najveći rizik može poslužiti metoda analize oblika i efekata kvarova, koja je odabrana za rješenje problema procjene rizika u ovom radu. Provedeno je anketno ispitivanje osoba koji rade na kontejnerskom terminalu riječke luke o vrsti i učestalosti pojedinih kvarova na obalnim dizalicama. Potom je za svaki kvar ocijenjena razina ozbiljnosti, učestalosti i otkrivanja, na temelju čega su izračunom veličine prioriteta rizika isti rangirani. Dobiveni rezultati ukazuju da najveći rizik ima fizičko oštećenje sajli dok je najmanji rizik predstavljaju neispravne nauglice kontejnera. Ovakav način istraživanja može doprinijeti budućem pravovremenom planiranju održavanja i preventivnog otklanjanja kvarova u svrhu neometanog odvijanja prekrcajnog procesa.Every large system should recognize and know how to manage its risks. The research problem in this paper is failures on container cranes, since it is extremely important, for quay cranes in the process of transhipment at the container terminal, to recognize critical failures and pay attention to them during regular or preventive maintenance. In order that the operational transhipment process at the terminal run efficiently, while ensuring the safety of staff and to identify failures that pose the greatest risk in a timely manner, the method of analyzing the forms and effects of failures can be used. This method is recognized as appropriate for solving the problem of risk assessment in this paper and also contributes to their controlling. A survey of operators working at the container terminal of the Port of Rijeka was conducted, on the type and frequency of individual failures on shore cranes. The level of severity, frequency and detection was then assessed for each failure, on the basis of which they were ranked by calculating the size of the risk priorities. This method of research can contribute to the future timely planning of maintenance and preventive troubleshooting for the purpose of uninterrupted transhipment process