This article presents the design system for high efficiency gantry crane system using elevator and conveyor system. The basic concept for the proposed gantry crane system can be used with modification of the classical gantry crane instead of changing lots of them. However, the proposed crane system can reduce the cycle time more than the classical gantry crane. The high efficiency gantry crane ...

Crane Hooks are highly liable components and are always subjected to failure due to the amount of stresses concentration which can eventually lead to its failure. To study the stress pattern of crane hook in its loaded condition, a solid model of crane hook is prepared with the help of ABAQUS software. Real time pattern of stress concentration in 3D model of crane hook is obtained. The stress d...

Abstract Shipbuilding occupies an important position in national defense and economy, which belongs to a typical large-scale complex production. In the modern shipbuilding mode, segment outfitting process is bottleneck of whole shipbuilding. The cycle long, there are many resource constraints process. At present, China’s enterprises adopt method storage-yard based outfitting, relatively extensi...

A 30-ton industrial bridge crane located at an aluminum sheet manufacturer has been equipped with a crane manipulation system enabling swing-free motion, disturbance rejection, and precise positioning. Previous investigations of anti-sway, positioning, and crane control have yielded important contributions in these areas. These advancements are combined into the unified crane manipulation syste...

The quay crane scheduling problem (QCSP) is a global and all ports around the world seek to solve it, get an acceptable time of unloading containers from vessels or loading therefore reducing docking in terminal. This paper proposes three solutions for QCSP port Tripoli-Lebanon, two exact methods which are mixed integer linear programming dynamic algorithm, obtain optimal solution one heuristic...