基于有限元法的防爆箱螺栓联接快速优化设计  

Fast Optimization Design of Bolt Connection of Explosion-proof Box Based on Finite Element Method

作　　者：李莹莹 LI Ying-ying(Chongqing Research Institute, China Coal Technology and Engineering Group, Chongqing 400037, Chin)

机构地区：[1]中煤科工集团重庆研究院有限公司,重庆400037

出　　处：《煤矿机械》2018年第4期132-135,共4页Coal Mine Machinery

摘　　要：结合防爆箱体外壳耐压试验的设计要求,法兰联接螺栓大小、数量及分布决定了产品能否达到其强度重要因素之一,采用Simulation对防爆箱体进行静力分析,提出一种快速简化螺栓联接结构模型方法,重点分析模拟螺栓模型部位应力分布情况,然后通过参数化调整螺纹间距、螺纹小径等参数,多次优化分析模拟结果,达到最优设计结果。最后采用该技术方法对防爆箱体进行异构变形,模拟主腔体与异构区域形成压力重合区域,分析结果优化设计、模拟。结果表明:可快速对防爆箱体螺栓联接进行快速优化设计。Combined with the design requirements of explosion-proof casing pressure test, flange bolt size, number and distribution to determine whether the product is one of the important factors of its strength, using Simulation for explosion-proof box static analysis, proposes a simplified bolt connection structure model, simulation model part focuses on the analysis of bolt stress distribution, and then through the parametric adjust the screw pitch, thread parameters, optimization analysis of the simulation results, the optimum design results. Finally, the technology is used to do the heterogeneous deformation of the explosion-proof box, and the pressure coincidence area is simulated between the main chamber and the heterogeneous area. The analysis results are optimized and simulated, and the results show that it can quickly optimize the bolt connection of the explosion-proof box.

关 键 词：防爆 有限元 强度 螺栓联接 优化设计 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TD684[自动化与计算机技术—控制科学与工程]