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-海表温度异常其他性态。

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.

摘要基于单一频成分自由衰减动响应信号相关性原理，提出了一种频成分两耦合自由衰减动响应信号解耦算法。