摘要

The second Lagrange's dynamical equation is used to establish the 6-DOF dynamics coupling model of a ZY12000/28/64 hydraulic support and its surrounding rock for analyzing the coupling effect. The influence of the basic roof mass, the initial height and its break location on the dynamic response of hydraulic support was investigated through parametric studies. The results show that with the increase of basic roof mass and its initial height, the forces on the column hydraulic cylinder and balance hydraulic cylinder increase linearly. Also, with the increase of the distance of break point from head beam front end, the force on the column hydraulic cylinder increases and the force on the balance hydraulic cylinder decreases.

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