摘要
推导了弹性支承梁横向自由振动模态的特征方程 ,计算了几种不同弹性支承梁的前几阶反映固有频率的无量纲特征值 ,提出了刚架模态分析的弹性支承梁方法 .算例表明 ,将弹性支承梁法应用于平面刚架弯曲振动模态分析 。
The characteristic equation of free transverse vibration mode of elastic bearing beams is deduced, and the non dimensional characteristic values of anterior steps reflecting the fixed frequency are calculated for several different elastic bearing beams. The elastic bearing beam method is developed for mode analysis of rigid frames. The present method is applied to the mode analysis of bending vibration of a plane rigid frame, and the result is satisfactory.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
北大核心
2002年第2期9-13,共5页
Journal of Hohai University(Natural Sciences)
关键词
刚架
模态分析
弹性支承梁法
rigid frame
mode analysis
elastic bearing beam method
