Based on the principle of equivalent mass, it tests the impelling vibration in sonic wave vibration system, introduces the experiment condition and process.
为此参照等效质量原理对声振系统进行了激振试验，并对试验条件和试验方法进行了介绍。
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.
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 continuous model is adopted in the torsional vibration frequency and resonance of shaft system, the lumped parameter equivalent applied in the sub-synchronous resonance.
轴系扭振频率和响应计算采用连续质量模型，次同步谐振特性分析采用集中质量模型。
In the previous research on torsional. vibration of diesel engine shafting system, an equivalent system must be defined before calculating free vibration and forced vibration.
对柴油机轴系扭振的研究，以往是先建立扭振当量系统，然后进行自由振动与强制振动计算。
Lumped parameter equivalent model is adopted in the shaft system torsional vibration model and the whole shaft system are divided into 6 parts.
轴系扭振模型采用集中参数等值模型，整个轴系分为6段。
Lumped parameter equivalent model is adopted in the shaft system torsional vibration model and the whole shaft system are divided into 6 parts.
轴系扭振模型采用集中参数等值模型，整个轴系分为6段。
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