摘要
以机械传动中常见的变截面压杆为例,根据临界弯曲载荷相等的条件,推导出了变截面压杆在轴向压力作用下所对应的当量长度的计算公式。从而可利用材料力学中求解等截面匀质压杆临界弯曲载荷的欧拉公式,求出各种不同支承形式变截面压杆的临界弯曲载荷。
This paper derives the equivalent
length calculation formula for compression bar with non uniform cross section under the
condition of equalization of the critical bending loads,which are then worked out using
Euler Formula for calculating critical bending load of compression bar with uniform cross
section.A calculation example is also given.
出处
《起重运输机械》
1999年第4期12-13,20,共3页
Hoisting and Conveying Machinery
关键词
压杆
变截面
临界弯曲载荷
当量长度法
机械传动
Compression bar Non uniform cross
section Critical bending load Calculation