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针对液压支架的动态性能严重影响采掘安全的情况,考虑土壤属性对液压支架系统的影响,将液压缸等效为弹簧、阻尼,采用多体传递矩阵法建立了液压支架-土壤相互作用系统动力学模型,通过与仿真值对比,验证了理论模型的正确性,基于此模型开展了不同液压介质体积弹性模量、不同活塞有效面积对活柱最大退缩量的影响研究,为提高采掘安全与指导液压支架的设计提供理论依据。
Aiming at the fact that the dynamic performance of hydraulic support seriously affects the safety of mining, considering the influence of soil properties on the hydraulic support system, the hydraulic cylinder is equivalent to spring and damping, and the dynamics of hydraulic support-soil interaction system is established by multibody transfer matrix method Based on this model, the effects of different elastic moduli of hydraulic medium and different effective area of piston on the maximum retraction capacity of the column are studied. In order to improve the safety of mining and guiding the hydraulic The design of the stent provides the theoretical basis.