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第五章交流液压的初步理论分析5-1单相交流液压系统的初步理论分析我们考虑如图(5-1)所示的单相交流液压系统示意图。1.传递矩阵符号说明:P_0——管道中的平均压力;Δ_p——压力对平均压力的变化量;u——管道断面上平均流速;K——液体的体积弹性模数;ρ——液体的平均密度; C=(K/ρ)~(1/2)——液体中的音速;P(S)——(Δp)/K的拉氏变换;U(S)——u/C的拉氏变换。
Chapter V Preliminary Theoretical Analysis of AC Hydraulic 5-1 Preliminary Theoretical Analysis of AC Hydraulic System We consider the schematic diagram of single-phase AC hydraulic system as shown in Fig. 5-1. 1. Transfer matrix notations: P_0 - average pressure in the pipe; Δ_p - change in pressure on average pressure; u - average flow rate on the pipe section; K - bulk modulus of the fluid; ρ - ; C (K / ρ) ~ (1/2) - Sonic velocity in liquid; Laplace transformation of P (S) - (Δp) / K; U Laplace transform.