摘要
基于大挠度理论,考虑初始偏心的影响,通过积分变换及椭圆积分展开式推导得到压力与初始偏心之间公式.并应用所推导公式求算初始偏心0.01的临界压力比,同时与理想压杆临界压力作对比,得出在实际工程压杆稳定分析中需要考虑大挠度效应及初始偏心.
Based on the large displacement theory, and with consideration of initial eccentricity, the relation formula between pressure and initial eccentricity is deduced through integral transform and elliptic integral. The formula is then applied to calculating critical pressure when initial eccentricity is 0.01, and to make contrast with that of perfect bar. It is then pointed out that large displacement and initial eccentricity should be taken into account when analyzing the stability of compressive member in real projects.
出处
《昆明理工大学学报（理工版）》
2005年第4期59-62,共4页
Journal of Kunming University of Science and Technology(Natural Science Edition)
关键词
压杆
大挠度理论
初偏心
椭圆积分
compressive member
large displacement theory
initial eccentricity
elliptic integral
