工程设计学报Issue(5)：449-455,7.DOI:10.3785/j.issn.1006-754X.2014.05.008
几何非线性臂架结构稳定拓扑优化
Stability-ensured topology optimization of geometrically nonlinear boom structures
摘要
Abstract
T he boom structure is a key component of boom cranes ,and the stability-ensured topol-ogy optimization is critical to its lightweight design .The sensitivity-based methods are not appli-cable for topology optimization of large-scale structures since they are labor-intensive and time-consuming .The quantitative indices of global stability and compression member stability for boom structures were defined .The anti-buckling mechanism of boom structures was analyzed to get the freezing order of associated web members .A novel SSKO (stability-ensured soft kill op-tion) method was proposed ,which was a topology optimization method for boom structures on the basis of the SKO (soft kill option) method for bars structures .This method was applied to topology optimization of a frame and a ring crane boom to demonstrate that it could achieve stable topologies with high efficiency .关键词
几何非线性/臂架/SSKO/稳定性/拓扑优化Key words
geometric nonlinearity/boom/SSKO/stability/topology optimization分类
机械制造引用本文复制引用
李文军,周奇才,吴青龙,熊肖磊..几何非线性臂架结构稳定拓扑优化[J].工程设计学报,2014,(5):449-455,7.基金项目
国家自然科学基金资助项目（51375345）． （）
