起重运输机械Issue(3)：32-37,6.
考虑双重二阶效应的伸缩臂架非线性稳定性研究
摘要
Abstract
Taking the 220 t all terrain crane telescopic boom as the research object,the nonlinear stability of the boom was analyzed through Abaqus software based on the arc length method.By examining the load-displacement curve and applying elastic-plastic theory,the entire process of the boom's structural buckling was dissected.A comparative analysis of the two loading modes indicated that the boom model under Loading Mode 2,which accounts for the compound second-order effects of P-δ and P-Δ,exhibited more pronounced geometric large deflection than the model under Loading Mode 1,which primarily considers the P-δ effect.Consequently,the buckling load at the extreme point was reduced.Even post-deformation,the lateral deformation of the boom significantly influenced its collapse trajectory.These findings can serve as a valuable analytical basis for the engineering design of boom structures.关键词
全地面起重机/伸缩臂架/非线性/载荷-位移曲线/二阶效应Key words
all terrain crane/telescopic boom/nonlinearity/load-displacement curve/second-order effect分类
机械工程引用本文复制引用
姚峰林,赵兴旺,高有山,吕少博..考虑双重二阶效应的伸缩臂架非线性稳定性研究[J].起重运输机械,2025,(3):32-37,6.基金项目
国家自然科学基金项目(52075356)、山西省面上自然基金项目(201901D111236) （52075356）
