Energy Transformation and Time Effectiveness of Dynamical System for Breaking Weakened Mineral Rock
Based on typical nonlinear negative exponent constitutive relations and catastrophe characteristic of weakened mineral rock,the variation of energy transformation and time effectiveness with mechanism stiffness in catastrophic and non-catastrophic breakup were analyzed.The results show that the catastrophic breakup induced by low mechanism stiffness will dramatically reduce the energy transformation efficiency of dynamical system and time effectiveness of rock breakage.From the perspective of energy utilization and rock-breaking efficiency,it is not appropriate to equip a dynamical system for rock breakage with low mechanism stiffness.Finally,an appropriate range of mechanism stiffness is provided for reference in design.
mineral rockweakened propertydynamical system for rock breakageenergy transformationtime effectiveness of rock breakage
万方数据
维普
