许海亮，杜羽，宋义敏，等.预折纹吸能构件恒阻性能优化研究［J］.河南理工大学学报（自然科学版），2024，43（2）：26-33.

XU H L，DU Y，SONG Y M，et al.Optimization of the constant resistance performance of pre-folded energy-absorbing elements［J］.Journal of Henan Polytechnic University（Natural Science），2024，43（2）：26-33.

预折纹吸能构件恒阻性能优化研究

许海亮，杜羽，宋义敏，高晗钧，谭安福

北方工业大学 土木工程学院，北京 100144

摘要: 目的 防冲吸能构件作为冲击地压发生时保护液压缸正常工作的核心构件，其支护效果 是评判吸能防冲液压支架优劣的重要标准。方法基于应用广泛的方形预折纹吸能构件，采用鱼群优化算法，运用数值仿真和数据处理软件协同分析方法，建立吸能构件的优化流程，得到吸能构件的加肋区，并与原构件对比，证明方案可行性。 结果 结果表明：（1）方形预折纹吸能构件由完全相同的8个梯形与8个三角形组成，以中轴线对称排列组成。通过分析构件形变情况，可知其形变较大区域集中在三角形区域上部与梯形区域底部，且有沿两腰预折纹向顶部延伸趋势，梯形侧壁中部出现塑性变形带；（2）通过对方形预折纹吸能构件进行局部加厚，承载力-位移曲线在弹性段形变结束后的衰减程度明显降低；（3）与原构件相比，优化后构件压溃峰值荷载增加，且各项支护性能均得到不同程度提升，吸能构件的优化效果良好。结论 本文中的新型加肋优化方法具有可靠性与可行性，对预防冲击地压具有重要意义。

关键词: 吸能构件；等效塑性应变；数值模拟；支护性能；鱼群优化算法

doi:10.16186/j.cnki.1673-9787.2022080016

基金项目:国家自然科学基金资助项目（51774015）

收稿日期: 2022/08/08

修回日期: 2023/05/11

出版日期:2024/03/25

Optimization of the constant resistance performance of pre-folded energy-absorbing elements

XU Hailiang，DU Yu，SONG Yimin，GAO Hanjun，TAN Anfu

School of Civil Engineering，North China University of Technology，Beijing 100144，China

Abstract: Objectives The support effectiveness of energy-absorbing anti-scouring hydraulic support， serving as the core component to safeguard hydraulic cylinder operation during rock burst incidents， is a critical criterion for evaluating its performance. Methods Based on the widely used square pre-folded energy-absorbing component， the fish swarm optimization algorithm is adopted，and the numerical simulation and data processing software are used to establish the optimization process of energy-absorbing component，and the rib area of energy-absorbing component is obtained，and the feasibility of the scheme is proved by comparing it with the original component. Results The results show that： （1）the square pre-folded energy-absorbing component is composed of 8 trapezoidal and 8 triangles， which are arranged symmetrically along the central axis.By analyzing the deformation of the component，it can be seen that the deformation area is concentrated in the upper part of the triangle area and the bottom of the trapezoidal area，and there is a trend to extend to the top along the two waist pre-folds，and the plastic deformation zone appears in the middle of the trapezoidal side wall；（2）by thickening the square pre-folded energy-absorbing component locally，the attenuation degree of the force-displacement curve after the end of the elastic segment deformation is significantly reduced；（3）compared with the original component，the optimized component crush peak load increases，and the support performance is improved to varying degrees，and the optimization effect of energy-absorbing component is good. Conclusions The new optimization method of adding ribs in this paper is reliable and feasible， and has important significance for preventing rock burst.

Key words:energy-absorbing member；equivalent plastic strain；numerical simulation；support performance；artificial fish swarm algorithm