振子

This homotopic method is an approximate analysis method, which can be more used for analyzing other behavior of the sea surface temperature anomaly of the atmosphere-ocean oscillator model.

本同伦方法是近似解析方法，它能进一步分析海-气振子海表温度异常态。

Based on the correlation principle, an algorithm to decomposite the damped free vibration signals of a two degrees of freedom system with close natural frequencies is put forward.

摘要基于单一频率成分自由衰减振动响应信号原理，提出了一种频率密集成分两耦合振子自由衰减振动响应信号解耦算法。