摘要
本文使用严格的边界条件,对理想弹性压杆的临界力重新定义。采用挠曲线近似微分方程方法和能量法给出了临界力的极限表达形式,解决了细长压杆临界力作用下的挠度不确定问题。
The connotation of the critical force for the ideally elastic slender column is redefined by using rigorous boundary conditions.Based on the approximate differential equation of the deflection curve and the energy method,the limit expression of the critical force is derived,which can be used for solve the deflection uncertainty problem of slender columns under the critical force.
作者
刘荣刚
边文凤
李素超
刘伟
金松波
LIU Ronggang;BIAN Wenfeng;LI Suchao;LIU Wei;JIN Songbo(Department of Civil Engineering,Harbin Institute of Technology,Weihai 264209,Shandong,China;Department of Astronautic Science and Mechanics,Harbin Institute of Technology,Harbin 150001,China)
出处
《力学与实践》
北大核心
2020年第4期508-510,共3页
Mechanics in Engineering
关键词
临界力
能量法
理想弹性压杆
边界条件
critical force
energy method
slender column
boundary condition
