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Bulk modulus for a hose pipe (PVC and steel mesh)

Experimenter
Experimenter

Hi everyone,
For my master's degree project, i need to develop a simply hydraulic circuit to comand a cutter or a lathe.
For the first part, i'm using steel pipe, so I don't have problems.
For the last part, I need to use and hose pipe in pvc+steel mesh. The problem is that Amesim need a unique bulk modulus for a pipe, and I really don't know where to find this parameter for a pipe composed by more element like pvc and steel.
Any advice?
Thanks a lot.

2 REPLIES

Re: Bulk modulus for a hose pipe (PVC and steel mesh)

Siemens Legend Siemens Legend
Siemens Legend

Hi,

Usually these values are provided by suppliers and can be found on catalogs.
Referring to the Amesim help of the hose component: 

 

The value of the effective bulk modulus depends on the pressure inside the hose. Typical values could be:

  • 30 bars at low pressure (a few bars of pressure in the hose)
  • 300 bars around 100 bars of pressure
  • 3000 bars at high pressure.

 

I hope it helps,

 

Federico 

Re: Bulk modulus for a hose pipe (PVC and steel mesh)

Experimenter
Experimenter

Hi!
Thanks For the advice, federico (sei italiano??)
Unfotunatley, no suppliers provide this value because it's considered not relevant for the customers, for the choice of the hose ( or maybe, this is the answer of all the suppliers i asked that). I didn't found it in any catalogue Smiley Sad