结果表明，在换能器不同振动模态下，等效并联电容电阻并非恒定值，而且实际支承工况下换能器系统工作时存在负阻尼效应。
The result shows, under different vibration mode, equivalent parallel capacitance and resistance are not constant value. There is negative damp effect in transducer system at the operating mode.
针对机械振动系统混沌运动的自身特点，提出了一种等效无源的混沌控制策略。
Aiming at the characters of nonlinearity chaos of mechanical vibration systems, a kind of strategy on passive equivalence controlling chaos is put forward.
对结构纯扭转的振动问题进行研究，分析了控制系统各参数对控制后结构等效阻尼比的影响。
The influence of systematic parameters on the structural equivalent damping ratio is analyzed for purely torsional vibration.
对结构扭转耦联的振动问题进行研究，分析了控制系统各参数对结构平移等效阻尼比和扭转等效阻尼比的影响。
The effect of systematic parameters on the structural equivalent damping ratio in translational and torsional direction is studied for torsionally coupled vibration.
研究了结构非线性振动及其控制系统的等效力学模型建立问题。对结构进行等效线性化处理；
The equivalent mechanical model of the structural nonlinear vibration and control systems was studied in this paper.
模型中，矿车被等效为两自由度弹簧-质量-阻尼系统，铁轨被等效为铺设在连续弹性道床上的伯努利·欧拉梁，矿车与铁轨的振动相互耦合。
In this model, the tramcar was regarded as two degrees of freedom spring-mass-damper system, and the track was regarded as Bernoulli-Euler beam that locates on continuous and elastic ballast.
模型中，矿车被等效为两自由度弹簧-质量-阻尼系统，铁轨被等效为铺设在连续弹性道床上的伯努利·欧拉梁，矿车与铁轨的振动相互耦合。
In this model, the tramcar was regarded as two degrees of freedom spring-mass-damper system, and the track was regarded as Bernoulli-Euler beam that locates on continuous and elastic ballast.
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