压杆稳定性的平衡视角与刚柔渐近  

THE BALANCE FROM RIGID TO FLEXIBLE IN STABILITY ANALYSIS OF COMPRESSION COLUMN

作　　者：李敏[1] 李依伦[2] LI Min;LI Yilun(School of Aeronautic Science and Engineering of Beihang University,Beijing 100191,China;Sino-French Engineer School of Beihang University,Beijing 100191,China)

机构地区：[1]北京航空航天大学航空科学与工程学院,北京100191 [2]北京航空航天大学中法工程师学院,北京100191

出　　处：《力学与实践》2020年第6期778-782,共5页Mechanics in Engineering

摘　　要：为了阐述弹性压杆稳定性的内涵,本文采用力矩平衡视角展示了压杆稳定性问题中各力矩的变化;利用多刚杆−碟形弹簧模型讨论了压杆稳定性的刚柔渐近,揭示了两种压杆稳定性模型的关系以及弹性压杆稳定性临界载荷的物理意义。In order to explore the connotation of the stability of the elastic compression column,the change of the moment balance in the stability analysis is considered.The balances from rigid to flexible in stability analysis of the compression column are analyzed by using the multi-rigid rod-spring model,and the relationship between the two models and the physical significance of the critical load of the elastic compression column stability are revealed.

关 键 词：压杆稳定性 平衡 临界载荷 

分 类 号：O341[理学—固体力学]