基于双光栅法的充液容器共振规律研究

Study of resonance rules of liquid filled container based on double grating method

为研究充液容器共振规律,提出基于改进双光栅法的实验技术,开展部分盛有液体的玻璃杯共振实验,测量不同液面高度、不同液体粘滞系数以及酒杯形状时系统的共振频率和振幅。结果表明液面高度越高,共振频率和相同能量下振幅越小,且液体的粘滞系数对共振参数影响较小,容器形状的影响可以用振幅系数f(z)来表示。实验数据与French模型吻合良好,验证了实验结果的科学合理性。研究结论表明:改进双光栅法可用于精确测量油船、储油罐以及海底输油管道等充液容器的共振参数。

The improved experiment technology based on the double grating methods has been presented to study the resonance rules of liquid filled container.For the measurement of resonance amplitude and frequency of wineglass with different liquid height,different viscosity coefficient liquid and different shape,the resonance experiment on wineglass partially filled with liquid was designed and performed.The experiment results indicated that the increment in liquid height will result in the decrease of resonance frequency and amplitude with the same energy.The viscosity coefficient has little effect on the resonance parameters.The effect of the shape of container to the resonance parameters can be expressed by the amplitude parameter f(z).The experimental values and the French model values tallied preferably,which indicated the scientific reasonability of the experimental result.The conclusions exhibited that the improved double grating methods can be used to measure the resonance parameters of liquid filled containers such as oil tankers,storage tankers,and submarine oil pipelines and so on.