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冲击载荷作用下DWX型单体液压支柱内压分析

Shi-qi CHEN,Bing-wen LI,Ji-yun ZHAO,Zhong-min WANG

Meitan Xuebao/Journal of the China Coal Society（2008）

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Abstract
建立了DWX型单体液压支柱在冲击载荷作用下的动力学模型,利用Hamilton原理导出其波动方程,然后采用有限差分法进行求解,得出了支柱内液体压力的变化规律及其各种影响因素.分析表明:安全阀安装的最佳位置应该在支柱的上端;冲击会引起支柱内压迅速升高,要求安全阀的响应速度要快;活柱体的充分伸出,有利于提高支柱的抗冲击性.
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Key words
DWX single hydraulic prop,Finite difference method,Impact loading,Wave equation
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