Computer Model of Pneumatic Hammering Tool with Elastic Valve
B. B. Danilov, A. A. Rechkin
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Keywords: Pneumatic hammering machines, elastic valve, computer model, simulation model, coupled problem, computational fluid dynamics
Abstract
The article offers a substantiation for the simulation model of a pneumatic hammering tool with an elastic element used as an air distributor. The working cycle of the pneumatic hammering tool with the elastic valve is modeled as the fluid-solid interaction. The comparison of these results with the one-dimensional simulation shows that the proposed model is preferable in this multi-physical problem. The parameters of the elastic valve to perform the function of sealing the back-stroke chamber to ensure operation of the hammering tool are determined. The time dependences of the basic physical parameters of air in the hammering tool within its working cycle, as well as the piston travels and velocities are found. The prospects of the proposed method in the design and analysis of hammering machines are assessed.
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