TY - GEN
T1 - Modeling and simulation of diaphragm oxygen regulator pressure control system
AU - Pan, Rui
AU - Lin, Guiping
AU - Zeng, Yu
AU - Yang, Xue
AU - Shi, Zhi Gao
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/7
Y1 - 2019/7
N2 - Oxygen regulator is a key component of the on-board oxygen supply system. Diaphragm oxygen regulator employs a diaphragm to control the lift of the oxygen supply valve pneumatically in order to achieve pulmonary respiratory. Due to the deformation of the diaphragm, the pressure of the pilot cavity fluctuates periodically, leading to the poor stability of outlet pressure. In this paper, the working principle of the Diaphragm oxygen regulator was analyzed and the mathematical model of each sub model was also put forward. In order to understand effects of each main parameter on pressure changes, the overall mathematical model of the oxygen regulator was established through simultaneous differential equations. The overall model was solved in MATLAB by fourth-order Runge-Kutta method. The simulation results coincided with the experimental phenomenon well which could prove that the model can be used to evaluate the influence of structural changes on pressure control. PI control was introduced to adjust the electronic valve lift to achieve better pressure performance. The simulation results show that pressure fluctuation could be effectively suppressed.
AB - Oxygen regulator is a key component of the on-board oxygen supply system. Diaphragm oxygen regulator employs a diaphragm to control the lift of the oxygen supply valve pneumatically in order to achieve pulmonary respiratory. Due to the deformation of the diaphragm, the pressure of the pilot cavity fluctuates periodically, leading to the poor stability of outlet pressure. In this paper, the working principle of the Diaphragm oxygen regulator was analyzed and the mathematical model of each sub model was also put forward. In order to understand effects of each main parameter on pressure changes, the overall mathematical model of the oxygen regulator was established through simultaneous differential equations. The overall model was solved in MATLAB by fourth-order Runge-Kutta method. The simulation results coincided with the experimental phenomenon well which could prove that the model can be used to evaluate the influence of structural changes on pressure control. PI control was introduced to adjust the electronic valve lift to achieve better pressure performance. The simulation results show that pressure fluctuation could be effectively suppressed.
KW - Diaphragm oxygen regulator
KW - MATLAB
KW - Pressure control simulation
UR - https://www.scopus.com/pages/publications/85074856911
U2 - 10.1109/ICMAE.2019.8881044
DO - 10.1109/ICMAE.2019.8881044
M3 - 会议稿件
AN - SCOPUS:85074856911
T3 - 2019 IEEE 10th International Conference on Mechanical and Aerospace Engineering, ICMAE 2019
SP - 6
EP - 10
BT - 2019 IEEE 10th International Conference on Mechanical and Aerospace Engineering, ICMAE 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th IEEE International Conference on Mechanical and Aerospace Engineering, ICMAE 2019
Y2 - 22 July 2019 through 25 July 2019
ER -