Determination of resistances to coal reclaiming at bridge-type stacker-reclaimer with bucket chain booms

One of the basic stages in design of bridge-type stacker-reclaimer with bucket chain booms is identification of external loads caused by resistances to reclaiming process. In its nature, it is both dynamic and stochastic. In this paper it an original model is presented for calculating such loads which, along with developed software's, enables fast and accurate identification of its dynamic and stochastic characteristics. High accuracy along with no sensibility for variation of constructive parameters and operating stages, presents main advantage of this model respected to other models in literature. This paper analyzes, on a real model, effects of some structural and operating parameters upon character and magnitude of loads caused by resistance to reclaiming process. It presents comparative analysis of output results obtained by this model and others that are given in literature. Finally, based on loads defined in this paper, it is possible to perform a static and dynamic behavior simulation of structure and mechanisms of bridge-type stacker-reclaimer with bucket chain booms.