非保守耦合振子的能量预估及功率流特点

对于统计能量分析(SEA)中的非保守耦合问题,在较早的研究中均假设耦合阻尼只对内耗有影响。本文研究认为耦合阻尼至少在内耗、输入功率和相关输入三方面有影响,首次将非保守耦合问题与相关输入问题联系起来。为了使问题简化,用构造经验系数的方法来消除相关输入的影响,提出了一种将非保守耦合问题转化为保守耦合问题来处理的方法,并用大量的计算对这一方法进行了验证。

Energy Prediction and Power Flow of Nonconservatively Coupled Oscillators

In earlier time,non-conservatively coupled problem in statistical energy analysis(SEA)was studiedby supposed that coupling damping only effects internal loss factors.This paper thinks that it has three ef-fects in whole system.They are loss factors,input power and correlation input.To make the correlation in-put problem simpler a coefficient is used.A non-conservatively coupled problem can be converted into aconservatively problem after this treatment.