Аннотация. В статье рассматривается структура комплексной математической модели для исследования рабочих процессов и динамической нагруженности мобильных транспортно-перегрузочных канатных комплексов. Она включает в себя отдельные математические подмодели, предназначенные для учета влияния элементов подсистемы на работу системы в целом. В рамках предложенной комплексной модели используются подмодели деформируемого опорного основания, базового шасси, канатной системы, грузовой кабины с подвеской. Учитывается отличия в работе приводных и неприводных базовых станций. Подмодели связаны между собой совместными параметрами, что позволяет учитывать при моделировании наличие обратных связей между подсистемами.
Cargo aerial ropeways are an efficient mode of transport in mining industry. The purpose of the paper is to develop a method for modeling kinematic and hydrodynamic processes in the mechanisms of movement of carrying-pulling ropes equipped with hydraulic drives with frequency-throttle control at all stages of work such as acceleration of the transported load, steady motion and braking. The options of sequential installation (one-way and two-way) of adjustable throttles relative to the hydraulic motor are considered. The developed mathematical model provides computer modeling in time of the main characteristics of the hydraulic drive - the pressures and volumetric flow rates of the fluid at the characteristic points of the hydraulic system, as well as the kinematic and power parameters of the movement of carrying-pulling ropes (traveled distance, linear velocity and acceleration, required power, surmounted operating loads). For a specific option of mobile rope complex, the calculations of the indicated hydrodynamic, kinematic and force parameters are carried out and the obtained results are analyzed.
Freight aerial cable roads are an efficient mode of transport in mining industry. The purpose of the paper is to develop the method of optimal design of a mono-cable freight ropeway thus reducing the cost of its construction. It is shown that the pitch and height of intermediate supports, the tension force of load-carrying-traction ropes exerts the main influence on the cableway cost. The problem of conditional nonlinear optimization of the mentioned factors ensuring the minimum cost of a cableway at different design capacity up to 600 t/h is formulated and solved. The optimization task is solved taking into account the necessary design, assembly, deformation and strength limitations. Regularities of change of optimal parameters of intermediate supports and load-carrying and traction ropes at the change of design capacity of a cableway were revealed on the basis of analysis of performed calculations. The results of this optimization task allows significantly reducing the cost of construction of freight aerial cableways.
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