拱钢机基础平台关键结构的应力分析与结构优化

Stress Analysis and Structural Optimization of Key Structure of Steel Support Machine Base Platform

基础平台作为拱钢机的重要承载部件,其结构性能直接影响整个拱钢机的平衡性,稳定性和可靠性等性能指标。在对基础平台关键结构进行三种典型工况下的静力学分析的基础上,采用SIMP插值函数的变密度拓扑优化方法,在有限元中对关键结构进行拓扑优化设计。最后对计算结果进行处理,以及对结果进行分析改进和验证。结果表明:对综合考虑三种工况下的拓扑优化结果进行合理结构改进,最终使主平台降重了5.87%,验证了拓扑优化设计的高效性和准确性。

As the important bearing part of the steel support machine,the structural performance of the base platform directly affects the balance,stability and reliability of the whole steel support machine.Based on the static analysis under the three typical operating conditions of the key structure of the basic platform,a variable density topology optimization method based on the SIMP interpolation function is used to optimize the key structure in the finite element.The computing results are processed,analyzed,improved and verified.The results show that the topological optimization results under three working conditions are improved reasonably.The main platform is finally reduced by 5.87%,and the efficiency and accuracy of topological optimization design are verified.