摘要
本文应用Newmark方法分析杆的纵向和扭转振动。将杆作自由振动的微分方程作降阶处理后,和梁的弯曲理论作类比,给出了一个迭代算法。计算表明,该法对寻求各种形状杆的自振频率是非常有效的。
This paper applies the Newmark's method to analyse the longitudinal and torsinal vibration of bars.After reduce the bar's free vibration differential equation to a lower order, we analogize it to the bending theory of the beam and gives an iterative procedure.The calculation illustrates that this method is very efficient to the estimation of the natural frequencies for the various shapes of bars.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
1989年第4期36-43,共8页
Journal of Hefei University of Technology：Natural Science
关键词
变截面杆
纵向振动
振型
迭代法
Longitudinal vibration, mode iteration, Newmark′s method.
