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用阻抗匹配法提出了转子-油膜-轴承-基础-土壤系统稳定性计算的理论方法,并计算了郑州机械研究所油膜振荡实验台的稳定性,计算结果与该所的实测值较吻合。同时,探讨了考虑基础-土壤影响之后失稳转速提高的原因与基础参数对系统稳定性的影响。
The theoretical method of rotor-oil film-bearing-foundation-soil system stability calculation is proposed by impedance matching method. The stability of the oil film oscillation experiment bench of Zhengzhou Mechanical Research Institute is calculated. The calculation results are in good agreement with the measured values. At the same time, the reasons for the increase of instability speed and the influence of basic parameters on the system stability are discussed after considering the foundation-soil effect.