Searched for "s1".

dependent on the temperature and the pressure. Its unit is Pa · s. The old unit P (cP) is no longer allowed. Conversion: 1 cP = 1 mPa · s.

Contraction A ‘1 of a flow rate when entering into a cross-section constriction. It arises when the wall of cross-section A 1 is removed ( Figure S 98 ). The jet contraction becomes smaller as the transition [...] transition from A 3 to A 1 becomes more round. The contraction coefficient ψ is between 0.6 for sharp edges, 0.7 to 0.8 in the case of a slight rounding, and up to 0.99 in the case of large radii.

been generated in the fluid. The propagation velocity for mineral oil in steel pipes is approx. 1,300 m/s.

Bernoulli force of a flow rate on a body, e.g. a Prandtl tube ( Figure S 78 ). This is then used to measure the static pressure p 1 and the dynamic pressure p 2 and thereby calculate the flow rate from

terms of accuracy, servo cylinders ( Figure S 53 ) are used with two construction designs, which differ in terms of the bearing of the piston and piston rod: 1st cylinder with hydrostatic bearing and 2nd [...] low natural frequency (between 10 and 100 Hz) and very low damping, between 0.05 and 0.2 ( Figure S 54 ). As their stiffness also depends on the oil volume in the cylinder, they are not easy to handle

axial planar moment of inertia s = free buckling length (see Figure K 12) S K = safety factor (safety in terms of buckling) In addition to the basic scenario (scenario 1), another three buckling scenarios [...] scenarios are possible in this context (Figure K 12). Mounting scenario 2 applies in most cases, so that s = l. Particularly thorough calculations are required for horizontal cylinders or those tilted at a

between 1-stage and 2-stage or 3-stage servo valves. In one-stage servo valves, the electrical input stage (torque motor, moving coil) acts directly on the hydraulic valve control spool ( Figure S 49 ). [...] ), which adjusts the piston of the primary control stage in proportion to the input signal ( Figure S 50 ). A feedback spring is used as standard for the position feedback. For flows greater than 150 to [...] used, in which the third (main control) stage is pilot-controlled by a two-stage servo valve ( Figure S 51 ). This means that overall gains of up to a factor of 108 can be achieved. The servo valve and its

at power peaks. This can be used to select the flow rate Q 1 of the pump according to the average consumption V N during a working cycle t S: ( accumulator consumption diagram ). Multiple consumers can [...] with a shut-off device. These devices are normally grouped in an accumulator safety block ( Figure S 66 ).

In hydraulics, four-hole flanges with the connection pattern standardised in SAE j 518 ( Figure S 1 ) are the most commonly used flange connections . The American SAE norm specifies two pressure stages

describes the basic loading of an electrical machine. It is defined in international standard IEC 60034-1. It helps provide an initial assessment of whether a component (motor, hydraulic power pack) is suitable [...] suitable for a particular application. If no nominal mode of operation is indicated on the machine’s type plate, it is designed for continuous operation with a constant load. The other nominal modes of operation