While up-right build structures are under construction, an over-hung crane has a major role in efficient lifting and transporting heavy materials from one point to another. There several types of cranes for variety construction sites, such as bridge/overhead, barge lift, tower crane, etc. The mobile is the most widely used equipment due its mobility. Unfortunately, number accidents including ca...

yard crane is an important resource in container terminals. efficient utilization of the yard crane significantly improves the productivity and the profitability of the container terminal. this paper presents a mixed integer programming model for the yard crane scheduling problem with non- interference constraint that is nphard in nature. in other words, one of the most important constraints in...

The possibility of applying the theory stochastic processes for evaluating dynamic pattern different states is studied critical-duty structures. Heterogeneous Markovian technical state transition metallurgical overhead crane structure, theorem and Kolmogorov-Chapman equation are analyzed. chain reviewed at t →∞, i.e. under marginal steady-state (stabilized) condition. Real values limit probabil...

Abstract This paper presents a new control scheme based on model reference command shaping (MRCS) for an overhead crane, with double-pendulum mechanism effects. The approach has advantage in achieving accurate trolley positioning, low hook and payload oscillations, under various desired positions parameter uncertainties, without the requirement measurement or estimation of system parameters. Th...