以刚度为目标的船载行车动臂结构拓扑优化

Crane jib structure topology optimization for structure stiffness improvement

以某船舶行车动臂为研究对象,采用三维有限元法建立有限元模型,通过灵敏度过滤算法对其进行拓扑优化,得到了行车动臂结构材料最优分布。计算结果表明:计算过程收敛速度较快,并且收敛达到较高的精度。采用三维有限元法得到的最优化结构材料分布合理,轮廓清晰。

Taking a ship crane boom as the research object,three dimensional finite element method( fem) is adopted to establish the finite element model,through the filtering algorithm for topology optimization of the sensitivity,we obtained the optimal materials distribution. Results show that the calculation process convergence faster,and convergence achieve higher precision. It is reasonable to get the optimization of structural materials clear outline distribution using three-dimensional finite element method.