摘要
本文计算了理想细长压杆杆端压力P与其位移△的理论关系,并根据电子式万能试验机的特点提出了一种新的测定压杆临界压力的方法。与传统方法相比,本方法省去了测定压杆中点挠度的装置,操作简单易行,精度也比传统方法高。
In this paper,the author calculated the relation between the pressure and displacement on the top of ideal slight bar.A new experimental method is presented for testing the critical load of compressed bar based on the trait of electronic universal testing machine.Comparing with traditional method ,this method omitted the equipment of testing displacement of the midpoint at the Compressed Bar, the operation is easier and simpler,the precision is higher than the one of traditional method,
出处
《科技信息》
2007年第24期7-7,5,共2页
Science & Technology Information
基金
湖南省科学技术厅2005科技计划资助项目"大跨度悬索结构悬索在随机荷载作用下的响应分析与控制"(编号:05FJ3036)。
关键词
细长压杆
临界力
欧拉公式
电子式万能试验机
实验方法
slight bar
critical load
formula of Euler
electronic universal testing machine
experimental method
