梁弯曲振动高阶特征值计算的若干问题

Calculation of Higher Order Eigenvalues of a Beam in Vibration

为克服Ｋｒｙｌｏｖ函数在梁弯曲振动高阶特征值数值计算中的困难，本文采取多种提高计算精度的措施，从而能在ＩＢＭ—ＰＣ微机上获得单跨梁和双跨连续梁前２０阶高精度固有频率和振型．

In order to overcome the difficulty or Krylov's function in the numerical calcula- tion of higer order eigenvalues or a beam in vibration,in this paper techniques are used for the improvement of accuracy,so as to obtain by using IBM-PC the more accurate twenty natural frequencies and modes of a beam with one span or two spans.