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以塔机双吊点水平起重臂作为研究对象,根据臂架的工作特点和性能要求,提出了吊点位置优化和型钢规格优化的两级结构优化设计策略,建立了臂架控制截面应力分布最均衡和臂架最轻的结构优化数学模型,编制了臂架结构应力计算程序和优化程序,计算表明优化后典型工况下臂架各危险截面的应力分布和臂架重量较优化前有较大的改善和减少。
Based on the working characteristics and performance requirements of the boom, a two-stage structure optimization design strategy of crane position optimization and profile specification optimization is proposed, and the stress distribution of boom control section is established. The most balanced and the lightest structure of the boom optimization mathematical model, the preparation of the boom structure of the stress calculation program and optimization program, the calculation shows that the typical conditions of the boom section of the stress distribution and the boom after the optimization of the weight of more than before optimization Great improvement and reduction.