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为了寻求旋挖钻机动臂结构的最优分布,实现动臂的轻量化,以某旋挖钻机动臂为研究对象,提出了基于均匀化方法的拓扑优化法,并将其应用到动臂的优化分析中。以动臂体积最小作为优化目标,动臂结构柔度作为约束条件构建数学模型,依据优化结果改进动臂结构,并对改进后的动臂进行了静力分析。结果表明,改进后的动臂在满足结构强度与刚度的同时,使用的材料与原设计方案相比减少了15%,实现了动臂最优分布与轻量化设计,为后续动臂的设计提供了参考。
In order to find out the optimal distribution of the boom structure of the rotary drilling rig and to realize the weight reduction of the boom, a boom topology optimization method based on the homogenization method is proposed and applied to the boom Optimization analysis. Taking the minimum boom size as the optimization objective and the boom compliance as a constraint, a mathematical model is constructed. Based on the optimization results, the boom structure is improved and the improved boom is analyzed statically. The results show that the improved boom satisfies the structural strength and stiffness while using 15% less material than the original design, which achieves the optimal boom distribution and light weight design and provides the following boom design For reference.