This paper is primarily directed toward analyzing the frequency response in hydraulic pipe lines with a small diameter. The exact solution to the frequency response is obtained by using the complicated transfer function. The discrepancy with the exact...
This paper is primarily directed toward analyzing the frequency response in hydraulic pipe lines with a small diameter. The exact solution to the frequency response is obtained by using the complicated transfer function. The discrepancy with the exact and the approximate is small, so the approximation solution is adopted to compare the experimental result with the theoretical analysis.
In this experiment, the input frequency was generated by the frequency generator with the ball valve and speed controller. In order to compare the theoretical wave forms with the experimental ones, the trace obtained from the oscilloscope is photographed. The diameter, the length of lines, and input pressure amplitude are varied to investigate their effects the experiment result show that the values of dimensionless parameter are very affected to the phase delay and guide response time in the design of pressure manifold to measure the pressure of hydraulic pipelines.