Optimization of crane scheduling in slab yard based on cycle simulation

Crane scheduling in slab yard is very important to tempo and efficiency of steel production. The optimization of crane scheduling is constrained by working zone, working process and crane interference. The process of optimization is affected by stochastic and whether the optimize result is satisfied is fuzzy. Cycle simulation is designed orienting this problem, thus optimization result can be got by multi-class fuzzy evaluation and cycle transform between as-is simulation model and to be simulation model. Agent technique is used to design simulation object in slab yard, simulation event and simulation logic are defined. An example of simulation application in a steel plant in China showed cycle simulation method is useful to crane scheduling in slab yard.