对内燃机车的非线性振动的隔振理论进行了研究 ,给出了隔振效果较好的理论方法 .本文所研究的系统是由非弱联系的三个自由度的非线性方程所描述的 ,因此本文采用的处理方法 ,在多自由度的非线性振动问题中具有普遍的适用性 The theory of vibration isolation of diesel locomotive is studied and the theoretical method with good vibration isolation effect is given.The system studied in this paper is described by the non-weak three-degree-of-freedom nonlinear equations, Therefore, the treatment method adopted in this paper has universal applicability in the multi-degree of freedom nonlinear vibration problem