To enhance the anti-impact performance of hydraulic columns , prevent and control the rockburst in coal mine effectively, or to a certain extent, reduce the losses caused by rockburst accident，a kind of diameter expanding energy absorption components combined with hydraulic column is put forward.The energy absorption and anti-impact properties of components are studied by using the methods of theory analysis and experimental study. The results showed that : the diameter expanding energy absorption component under axial pressure has excellent stability and deformation and failure modes of reproducibility.The expansion value of the component after deformation is only equal to the thickness of the thin-walled circular tube,and doesn’t occupy the other space.The diameter expanding energy absorption component has an ideal force-displacement curve in the process of compression. Geometry size has no effect on the stroke efficiency of the diameter expanding energy absorption component, and the diameter expanding anti-impact component has a smaller load fluctuation coefficient.The energy absorption and anti-impact evaluation index of components is obtained through theoretical derivation, and it is in good agreement with the experimental results. This provides a theoretical basis for components selection. The diameter expanding anti-impact component is an ideal energy absorption and anti-impact component.
杨巨文1,2，唐治1，何峰1，张莹莹1，于永江11. 矿用扩径式吸能构件吸能防冲特性研究[J]. 振动与冲击, 2015, 34(8): 134-138.
Yang Ju-wen1,2, Tang Zhi1, HE Feng1, Zhang Ying-ying1, YU Yong-jiang1. Analysis on energy absorption and anti-impact properties of mine diameter expanding energy absorption components. JOURNAL OF VIBRATION AND SHOCK, 2015, 34(8): 134-138.
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