International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

Gantry cranes are particularly suited to lifting very heavy objects, especially in shipbuilding industry are used massive objects like ships’ engines to be lifted and moved over the ship. Capacity of the overhead gantry cranes increased proportionally through the needs. In this study dual-trolley heavy duty overhead gantry crane that can carry loads up to 800 tons was designed and analyzed. Stress and displacement values of main beam were calculated by both Finite Element Method and using mechanical formulas. As a result, it has been seen that, F.E.M. is a quite practical method to handle stress analysis problem of gantry cranes.

For handling of partial or continuous goods, belt conveyors are very efficient way. Belt conveyors are used in mining, iron and steel plants, thermal power plants, ore, coal, limestone, sinter transmission, automotive and the other sectors. There are several factors that have to be taken into consideration when a belt conveyor being designed. That means belt conveyor design process requires repetitive strength calculations. But analytical calculations are not capable of determine to entire stresses which occured at whole body. During the design process, time can be saved with the assistance of Finite Element Method. In this study; as a result, it has been seen that, F.E.M is the most practical method which can be utilized during belt conveyor design process.