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为优化充填液压支架整体的框架结构,对充填支架整体进行简单的力学分析,采用UG对液压支架顶梁进行实体建模设计,应用Ansys Workbench对顶梁进行有限元分析,得到了危险工况下的应力分布和位移变化.以此为基础,以顶梁体质量为优化目标,顶板厚度、顶梁主筋板厚度和高度设为变量,对顶梁主要尺寸进行优化设计.优化后,顶梁主筋板厚度减少2 mm,顶板厚度减小4 mm,主筋板高度增加8 mm,共减轻质量197.65 kg,为验证顶梁优化结果的正确性,重新对优化后顶梁的三维模型进行了虚拟强度试验,试验结果表明:顶梁在两端荷载工况下满足强度要求.
In order to optimize the overall frame structure of the hydraulic support, a simple mechanical analysis of the whole support was carried out. The UG was used to carry out the solid modeling design of the top support. The Ansys Workbench was used to analyze the top beam with finite element method. Based on which the optimal design of the main dimensions of the roof beam is optimized by taking the mass of the roof beam as the optimization target, the thickness of the roof, the thickness and height of the main ribs of the roof beam as variables, and after optimization, The thickness of the slab is reduced by 2 mm, the thickness of the roof is reduced by 4 mm, the height of the main slab is increased by 8 mm and the total mass is reduced by 197.65 kg. To verify the correctness of the roof beam optimization results, the virtual three-dimensional model of the roof beam is simulated again The test results show that the roof girder meets the strength requirements under load conditions at both ends.