%0 Journal Article
%T 载流薄板式流体滤波器性能研究<br>Filtering Properties of Current-carrying Plate Fluid Attenuator
%A 何志勇
%A 何清华
%A 贺尚红
%J 机械科学与技术
%D 2016
%X 提出了一种载流薄板耦合振动式流体脉动抑制原理,研制了一种结构振动式流体滤波器,利用阻尼平衡孔和静压平衡容腔及薄板的振动衰减流体脉动能量,实现了流体谐振和结构谐振的共同滤波。利用小扰度理论对流体耦合作用下载流薄板进行了动力学分析,应用集中参数法分析了滤波器的动态特性,建立了传递矩阵模型,仿真分析得出了理论模型的一致结果。最后对实验样机进行了性能测试,通过对流体压力的时域及频域信号分析,证明滤波器在耦合共振频率点具有良好的流体脉动衰减效果,同时在其滤波带宽范围内,也具有一定的流体系统压力脉动抑制效能,验证了理论分析的正确性,为流体系统压力脉动抑制提供了新方法。<br>The suppression principle of coupling vibration of current-carrying plate was proposed and a structural vibration fluid attenuator was developed. The fluid pulse energy was attenuated with damping balance hole, static balance sheet vessel and plate vibration, the fluid resonance and structure resonance were combined in one attenuator. The current-carrying plate kinematics under the action of fluid coupling was analyzed with small perturbation theory. Then with the lumped parameter method, the dynamic characteristic of the attenuator was analyzed and the matrix transfer model was established, the results of simulation analysis is consistent to the theoretical model. Finally, the experimental prototype was designed and manufactured; the performance testing was carried out. Through analyzing the fluid pressure signals of time domain and frequency domain, the results show that the attenuator has good fluid pulsation attenuation effect at coupling resonance frequency points, and also has certain fluid pressure pulsation suppression effectiveness within the scope of its filter bandwidth at the same time. The correctness of theoretical analysis was validated by testing and this method provides a new way for fluid pressure pulsation suppression
%K 压力脉动
%K 流固耦合
%K 载流薄板
%K 阻尼
%K 能量耗散
%K 滤波器&lt
%K br&gt
%K attenuator
%K current-carrying plate
%K damping
%K energy dissipation
%K kinematics
%K matrix algebra
%K resonance
%U http://journals.nwpu.edu.cn/jxkxyjs/CN/abstract/abstract6349.shtml