组合式恒阻吸能装置设计及优化  

Design and Optimization of Combined Constant Resistance Energy Absorption Device

作　　者：许海亮 王庞 安栋 魏亚博 XU Hailiang;WANG Pang;AN Dong;WEI Yabo(School of Architecture and Construction,North China University of Technology,Beijing 100144,China)

机构地区：[1]北方工业大学土木工程学院,北京100144

出　　处：《煤炭技术》2025年第1期273-277,共5页Coal Technology

摘　　要：为提高现有吸能装置的恒阻效果,在预折纹吸能装置内部引入四边形方管及隔板,采用不同的装配方式,通过力学性能分析,探讨了各组合对装置性能的影响。研究结果表明:(1)隔板的加入增强了吸能装置的变形有序性,缩小了承载力的波动范围,提升了装置在承压段的稳定性;(2)方管与吸能装置的组合改变了吸能过程的变形模式,使得装置上下部分先后变形,协同承压,从而显著提高了压溃峰值F_(max)(49%)、平均压溃承载力F_(mean)(64%)和总吸能E(48.8%);(3)在吸能盒上端设置诱导槽能够优化力-位移曲线,提高了压溃峰值F_(max)(30%)、平均压溃承载力F_(mean)(28%)和总吸能E(28%),同时比吸能ASE提高了5.9%。为提升吸能装置的性能提供了有效的结构设计方案,对工程应用中的安全防护具有重要意义。To improve the constant resistance effect of existing energy-absorbing devices,introduces square tubes and partitions inside pre-folded energy-absorbing devices and employs different assembly methods.Through mechanical performance analysis,the impact of various combinations on device performance is explored.The results show that:(1)The addition of partitions enhances the orderly deformation of the energy-absorbing device,reduces the fluctuation range of the bearing force,and improves the stability of the device in the compression stage.(2)The combination of square tubes and energy-absorbing devices changes the deformation mode of the energy-absorbing process,causing the upper and lower parts of the device to deform sequentially and bear pressure cooperatively,thereby significantly increasing the peak crushing force F_(max)(49%),average crushing force F_(mean)(64%),and total energy absorption E(48.8%).(3)Setting an induction groove at the upper end of the energy-absorbing box can optimize the force-displacement curve,increasing the peak crushing force F_(max)(30%),average crushing force F_(mean)(28%),and total energy absorption E(28%),while also improving the specific energy absorption ASE by 5.9%.Provides an effective structural design scheme for enhancing the performance of energy-absorbing devices,which is of great significance for safety protection in engineering applications.

关 键 词：冲击地压 预折纹吸能装置 组合式吸能装置 数值模拟 

分 类 号：TD324[矿业工程—矿井建设]