1) Duffing
杜芬
1.
Application of Duffing System in Detecting Faint Characteristics Signal Of Structural Damage
杜芬系统检测微弱特征信号的方法及应用
2) Duffing system
杜芬系统
1.
Equivalent research on random vibration of strong nonlinear Duffing system;
强非线性杜芬系统随机振动的等效化研究
2.
It confirms that the faint characteristics signal impacts Duffing system much larger than others.
在原有杜芬振子检测微弱特征信号的理论基础上,提出了利用相关系数法来刻画系统微小的相变,证实了微弱特征信号对杜芬系统的影响远大于其他信号对该系统的影响,阐述了利用相关系数法检测极微弱特征信号的步骤,给出了阈值的选择条件。
3) Duffing oscillator
杜芬振子
1.
Methods of random Melnikov process function are introduced to analyze the equation and the differential trajectory,the influence of non-Gaussian color noise on Duffing oscillator chaotic motion behavior is also studied,a new chaotic method for the sine wave parameter estimation in non-Gaussian color noise environment is given.
首先对多参量简化杜芬方程进行了改进,采用梅尔尼科夫过程函数讨论了方程的解和微分流形的演化情况;分析了非高斯色噪声对杜芬振子混沌运动行为的影响;进而提出了一种新的非高斯色噪声背景下正弦信号参量估计方法。
2.
Duffing oscillators’ phase transformation from chaos to intermittent chaos is sensitive to the signals, whose frequency difference is little different from the reference signal, while it has immune to white noise and the signals, whose frequency is quite different from the reference signal.
杜芬振子从混沌到间歇性混沌的相变对与参考信号频差较小的周期小信号具有敏感性,而对白噪声和与参考信号频差较大的周期干扰信号具有免疫力。
3.
This article,through studying bifurcation and singularity of Duffing equation,by making use of the characteristics that Duffing oscillators produce spectrum approximates to white noise after enough bifurcation under perturbation of weak sinusoidal signal,analyzes bifurcation equation of Duffing oscillators and spectrum features.
通过对杜芬(Duffing)方程的分岔与奇异性的研究,利用弱正弦信号扰动下杜芬振子经过足够多的分岔会产生近似白噪声的频谱特性,对杜芬振子的分岔方程和解态频谱进行分析,证明白噪声信号与混沌信号属于同一类信号,本文首次验证了确定系统混沌信号的频谱与噪声随机信号的相似性。
4) duffing equation
杜芬方程
1.
Using duffing equation as the object of research and an equivalent model based on the theory of bond-graph is proposed to compare the two methods.
为了对这两种仿真分析方法进行对比分析,选取杜芬方程作为研究对象,提出了运算放大器的键合图模型,分别用图形化的方法与键合图方法进行了仿真,并对两种方法进行了结论性的比较。
2.
Research the variable feedback control method used to chaotic Duffing equation, discusses the relation between different feedback intensity and periodic orbits.
研究了未知目标周期轨道的混沌杜芬方程的变量反馈控制方法 ,详细讨论了反馈强度和混沌现象的关系 ,证明了该方法可以有效地改变达到稳定周期的速度 ,使原系统由初始的混沌轨道被控变成非混沌的轨道 ,最终进入目标轨
3.
Duffing equation of the symmetric nonlinear vibration was dissussed by using approximate method.
利用逼近法求解了对称非线性振动的杜芬方程,得出无阻尼和有阻尼情况下的幅频特性,结果表明由于非线性恢复力的影响,导致系统振动的非线性效应。
5) vibration suppression by coupling with Duffing system
杜芬减振
6) Bromide
[英]['brəʊmaɪd] [美]['bromaɪd]
杜灭芬
补充资料：杜灭芬
分子式：暂无
分子量：暂无
CAS号：24959-67-9
性质：暂无
制备方法：暂无
用途：五官科用药。
分子量：暂无
CAS号：24959-67-9
性质：暂无
制备方法：暂无
用途：五官科用药。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条