摘要
把含有小参数的变系数二阶线性齐次方程转化为含有大参数的变系数二阶线性齐次方程 ,然后求出含有大参数的变系数二阶线性齐次方程的一级渐近期 ,利用此渐近解即可求出非均质变截面弹性杆固有振动频率的高精度渐近解。
The first- order asymptotic solution of the second- order linear homogenous equation with big parameters and coefficients of variation is obtained by converting the small parameter to the big parameter. An exact asymptotic solution of longitudinally twisted natural vibration frequency of an elastic non- uniform bar with various sections is derived by using the above asymptotic solution.
出处
《甘肃科学学报》
2001年第2期15-18,共4页
Journal of Gansu Sciences
