简单的压缩机轴系扭振频率一般根据比率系数就可对其进行判定；
The shaft torsional vibration analysis is a key technique in the design of the compressor shaft, which determines the safety operation of the compressor.
计算结果表明，机组扭振频率避开了工频与倍频，轴系不会因共振而破坏。
The calculation result indicates that the torsional vibration frequency will avoid from power frequency and multiple frequency.
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。
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.
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