基于Simulation的液压支架结构的优化研究

Optimization of the Hydraulic Support Structure Based on Simulation

针对液压支架工作中出现开裂等强度失效的情况,对其进行在极限工况下的强度有限元分析,找出应力薄弱位置并提出结构优化方案,即于掩护梁箱体内增加斜置筋板及增加腹板厚度。对比分析优化前后的支架有限元分析结果,结构优化后最大应力可有效降幅10%,使最大应力远离材料屈服强度、液压支柱整体结构的安全性得到提升,有效保障了工作人员的生产安全和煤矿的生产效率。

In view of the cracking and other strength failure of hydraulic support,the strength finite element analysis under extreme working conditions is carried out,and the weak stress position is found out and the structural optimization scheme is put forward,that is,to increase the oblique reinforcement plate and the web thickness in the cover beam box.Compared with the results of finite element analysis before and after optimization,the maximum stress can be effectively reduced by 10%after structural optimization,which makes the maximum stress far away from the yield strength of materials,and the safety of the whole structure of hydraulic support is improved,which effectively ensures the production safety of staff and the production efficiency of coal mine.