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Hydraulics Circuit with load

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Ivan
Ivan on 19 Mar 2014
Edited: Ivan on 19 Mar 2014
Hello,
I'm trying to uderstand next example, like this one http://www.mathworks.com/help/physmod/hydro/examples/hydraulic-circuit-with-single-acting-cylinder.html There is hydraulic model with actuator + load.
If to change the mass of load in mechanical part of system how it would influence on hydraulic part? - would it change fluid pressure and flow rate? My experiments show that there're no change in static (pressure and flow rate the same for 4.5 kg and 450 kg), only changes in dynamic behaviour (more ocsillation). Is it true and how to explain it? The mass force is f == mass * M.v.der;, for the same force from hydraulic part and different values of mass there will be different M.v.der, but in real word we can't push such heavy load or not?

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