Hydraulics Kurgan State University

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Uploaded: 26.01.2016
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Control of fluid mechanics Kurgan State Option 56

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Problem 1. The pump works on the hydraulic network. Pressurized pump characteristic parameters set in the immeasurable in Table 1. The parameters of the pump (Q0 and H0) and a hydraulic network (collar nut, d, l, λ, Σξ) are given in Table 2.
According to the set parameters Q0 and H0 to calculate and plot the pressure pump characteristic H = f (Q). Calculate and build characteristics of required pressure hydraulic network Hpotr. = F (Q). Define the parameters of the operating mode of the pump and the hydraulic network (operating point A). (To determine the pressure, flow and power at the pump shaft).

Problem number 2
The drives many machines (presses, dozers, scrapers lifts, machine tools) used hydraulic drive circuit shown in Figure:
The hydraulic oil tank is made up of B, H pump, check valve CO, P control valve, hydraulic cylinder HZ, pipelines, safety valve KP filter F.
Stem force is F, the speed of movement of the body (piston) V, the operating pressure in the hydraulic drive P and the length L truboprivodov are given in the table below:

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