Method for analyzing stability of open-full flow hydraulic system

• Main Authors: ZHENG YANG, CHEN QIJUAN, LIU WANYING, YOU SHIHAO, ZHANG HAIKU, LIU WUSHUANG, YAN DONGLIN
• Format: Patent
• Language: Chinese; English
• Published: 10.06.2022
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention provides an open-full flow hydraulic system stability analysis method, which comprises the following steps of: dividing equivalent sections of a pressure pipeline and an open channel according to an actual arrangement form and parameters of a hydraulic structure in a system; establishing a field transfer matrix of each segmented pressure pipeline and the open channel; establishing a point transfer matrix or algebraic equation set model of different types of hydraulic boundaries between the pressure pipe and the open channel of each segment; forming a state variable X of the whole system by the water pressure and flow at the head and tail ends of all the pipes with pressure and the open channel, and uniformly rewriting the field transfer matrix in the step 2 and the point transfer matrix in the step 3 into an algebraic equation set in a matrix form without considering a forced oscillation source in the system; solving each complex feature root of the overall transfer matrix A, and judging the rel