【摘要】 针对七节折臂式起重机伸缩臂截面进行了尺寸优化设计，旨在实现轻量化，提高机动性和承载能力。运用Solidworks进行伸缩臂的参数化建模，结合Ansys中间复合材料设计方法，生成了一系列样本数据并采用NSGA-II算法进行优化，最终确定最佳的截面尺寸。优化结果显示，在保持结构安全性和可靠性的前提下，改进后的伸缩臂减重率达到15.07%，验证了优化方法的有效性和可行性。更多还原

【Abstract】 The sectional dimension optimization design for the telescopic arm of a seven-section articulated boom crane was carried out, so as to achieve light weight, thereby enhancing its mobility and loadbearing capacity. Solidworks software was used for parametric modeling of the telescopic arm, and an intermediate composite material design approach by Ansys software was utilized to generate a series of sample data. The NSGA-II algorithm was employed for optimization, identifying the best sectional dimension. The optimization results show that the improved telescopic arm significantly reduces the weight by 15.07% while maintaining structural safety and reliability. This confirms the efficacy and feasibility of the optimization method.更多还原