Modeling of System Energy of Rock Under Harmonic Vibro-Impact

Haige WANG, Guodong JI, Liu CUI, Siqi LI, Tie YAN, Zihe CHEN

Abstract


Hamiltonian function is proposed and the modeling of system energy of rock under harmonic vibro-impact is undertaken in this study. The modeling includes two aspects, namely, energy equation of rock system with no damping and the one with damping. Also, the results of numerical simulation are presented. Four main control parameters are considered, including natural frequency of rock, impact frequency, impact force, damping coefficient.
It is confirmed that the system energy of rock will increase with the increase of natural frequency impact frequency and impact force. While impact force, damping coefficient and stiffness of rock will mainly decide the vibration amplitude of system energy.


Keywords


Harmonic vibro-impact; System energy; Hamiltonian function; Numerical simulation

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DOI: http://dx.doi.org/10.3968/10263

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