Frequency Response Characteristic Analysis of Pressure Transmission Pipeline in Weapon Chamber Pressure Measurement System

The pressure transmission pipeline is an important part in chamber pressure measurement of weapon system.Its dynamic characteristics have direct effect on the frequency range and measuring accuracy of the system.By means of the single degree of freedom second order systems model of pressure transmission pipeline and its approximate algorithm,numerical simulation for the frequency response characteristics of the pressure transmission pipeline was carried out.The effects of the natural frequency of the pressure transmission pipeline caused by geometrical parameters and air volume in pressure transmission medium were analyzed.The results of theoretical analysis and numerical simulation can provide basis for the design and use of pressure transmission pipeline in the chamber pressure measurement.