中国空间科学技术

中国空间科学技术

• •    

模拟空间失重状态下流体桥振动实验研究

王先荣   

  1. 兰州物理研究所
  • 发布日期:1994-12-25

THE EXPERIMENTAL STUDIES UPON THE VIBRATION PROPERTY OF AXISYMMETRIC VISCOUS LIQUID BRIDGE UNDER MICROGRAVITY

Waug Xianrong(Lanzhou Institute of Physics,Lanzhou 730000)J. Meseguer(ETSI Aeronauticos,28040-Madrid,SPAIN)   

  • Online:1994-12-25

摘要： 就微重力环境下粘滞流体桥振动特性问题，采用ＰＴＦ（平台流体浴槽）装置，在模拟空间失重状态下进行实验研究。实验就不同桥长（不同细长度）、不同位置在不同外界挠动频率下的振动特性针对不同粘滞系数反复进行实验，测试并详细记录了各参数下桥界面振幅随频率变化的数据和谱图（计数据２０００余，谱图８１张）。实验数据和谱图的分析结果表明：①谐频随桥细长度增加向低频方向移动；②谐频和细长度关系是双曲反比例关系。

关键词: 流体桥, 微重力环境, 粘性流体, 振动影响, 频率响应

Abstract: In this paper Plateau Tank Facility(PTF)is used to investigate experimentally the vibrati on properties of axisymmetric viscous liquid bridges under simulated microgravity enyironment.Experimental tests are undertaken circularly for different bridge slenderness,different bridge positions,different vibration frequences and different bond numbers.The changes of bridge interface vibration amplitude versus vibration frequence are recorded in detail.The analysis of these data and spectrograms show that:(1)Bridge resonance frequences are moving towards the lower value of frequence with the increasing of the bridge slenderness.(2)Experimental relati ons between them are inyerse ratio curve.