Modeling Impact Energy Transfer through Closed Chamber Filled with Fluid
V. E. Erem’yants, B. S. Sultanaliev, kyzy Nazira Melis
Institute of Machinery Science, Kyrgyz Academy of Sciences, Bishkek, 720055 Kyrgyz Republic
Keywords: молот, поршень, камера с жидкостью, инструмент, удар, давление, объемный модуль упругости, утечки, алгоритм расчета, Hammer, piston, chamber with fluid, tool, impact, pressure, bulk modulus of elasticity, leaks, calculation algorithm
Abstract
Different models of a hammering system with impact energy transfer in a close chamber filled with fluid are analyzed. It is proved that the piston and the tool in the model can be represented by solid nondeformable bodies while the fluid-filled chamber by an inertialess elastic element. Based on the analyses, the forces in the fluid-filled chamber and at the tool-and-rock contact, as well as the impact energy transfer coefficient are related with the chamber parameters and the contact stiffness between the tool and rocks. The algorithm is proposed to calculate such system dynamics with regard to fluid leaks, variable viscosity and bulk modulus of elasticity.
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