nonlinear transformation;
double exponential function;
approximate analytic solution;
nonlinear third order ordinary differential equation;
harmonic balance method;
D O I:
10.1143/JPSJ.69.362
中图分类号:
O4 [物理学];
学科分类号:
0702 ;
摘要:
It is shown that the method of nonlinear transformation (NTR) is a powerful tool for obtaining approximate analytic solutions of nonlinear ordinary differential equations (ODEs), Special attention is paid to the performance of a family of double exponential NTRs. Applications of the double exponential NTRs to some nonlinear third order ODEs in the normal form are given with numerical examples.