基于ICM法的龙门式加工中心焊接横梁结构设计与优化

发布时间：2018-10-15 12:58

【摘要】：目的分析异型石材锯铣复合加工中心的工况,提出一种焊接式横梁的结构设计与优化方法,以提高关键部件横梁的动、静态特性.方法将横梁焊接工作过程中的各肋板作为独立单元,建立数学模型,设置边界条件,应用连续体ICM拓扑优化方法,对横梁肋板结构优化和肋板的分布进行设计规划.结果应用ICM法改进设计的异型石材锯铣加工中心横梁,在保证加工精度要求的前提下,其整体质量可以降低24.18%,生产成本较低约6.91%.结论该ICM拓扑优化方法有效地降低了优化求解规模和约束数目,计算效率得到提高,打破了传统经验设计的单一化,为今后的制造业结构轻量化设计提供了一种新思路.
[Abstract]:In order to improve the dynamic and static characteristics of the key components, the structural design and optimization method of the welded crossbeam is proposed by analyzing the working conditions of the special shaped stone sawing and milling composite machining center. Methods each ribbed plate in the process of beam welding was taken as an independent element, mathematical model was established, boundary conditions were set up, and the optimization of beam ribbed plate structure and the distribution of ribbed slab were designed and planned by means of continuum ICM topology optimization method. Results the ICM method was used to improve the design of the cross beam of the special shaped stone sawing and milling machining center. On the premise of ensuring the machining precision, the overall quality of the beam could be reduced by 24.18%, and the production cost was about 6.91%. Conclusion the ICM topology optimization method can effectively reduce the size and number of constraints, improve the computational efficiency, break the simplification of the traditional empirical design, and provide a new way of thinking for the lightweight design of manufacturing structure in the future.
【作者单位】：沈阳建筑大学机械工程学院;
【基金】：国家十二五科技支撑计划项目(2011BAJ02B07) 教育部创新团队项目(IRT_15R45) 辽宁省教育厅科学研究项目(L2015447) 沈阳市科技项目(F16-234-7-08) 高档石材数控加工国家(地方)联合工程实验室开放基金装备与技术(SJSC-2015-2)
【分类号】：TG44;TG659

【相似文献】