摇架式隔振系统隔振特性的试验研究

Testing Study on Vibration Isolation Characteristics of the Rocking Vibration Isolation System

研究履带车辆动力传动装置摇架式隔振系统的隔振特性．应用动力学相似理论设计制作了摇架式隔振系统的试验模型并进行了理论分析和试验．试验表明，摇架式单层隔振系统的传递率下降斜率为12dB／oct，双层隔振系统的传递率下降斜率为24dB／oct．试验结果与理论分析一致．摇架式隔振系统具有良好的隔振效果，而双层隔振系统的隔振效果更有效．

To study the vibration isolation characteristic of the rocking vibration isolation system of track vehicular power-train, the principle of dynamic similitude was used to design and make a test model of the system. The theories of the rocking vibration isolation system were developed. Five kinds of modal tests were perforrned. The one-stage system's decreasing rate of transmissibility is 12 dB/oct and the two-stage system's is 24 dB/oct. The results of the tests are in accordance with the theoretical analyses. The rocking systems have superior features and the two-stage system is better.