中文摘要：

建立了一种单作用液压颤振器的简化振动模型，并推导出谐振频率。采用ANSYS分析了液压颤振器的流固耦合振动模态。实验研究发现，发生谐振时的振幅有显著增加，谐振时的波形明显比非谐振时好；另外，流固耦合作用使系统谐振频率小幅下降，发生谐振的频宽变大。

英文摘要：

The vibration model of a single-acting hydraulic excited flutter device was established herein, and the resonance frequency was deduced. The modal analysis during the exciting vibration was done by ANSYS soft. Experimental studies find some interesting phenomenon during resonance, where amplitude increases significantly, waveform is better than that of non-resonance process. In ad- dition, resonance frequency fells slightly and bandwidth of resonance is larger because of the fluid- structure interaction.