Effacer les filtres
Effacer les filtres

Isothermal Fluids Pump/Motor Case Drain

4 vues (au cours des 30 derniers jours)
Philip Lane
Philip Lane le 22 Mar 2024
Will there be case drain options available at some point for pump/motor models in Simscape Fluids?
The models are working well overall but there are some corner case problems that result from not having case drains. For example, when a model is static (no rotary motion) the pressure doesn't bleed off from A/B ports as it would naturally in a typical closed-circuit hydrostatic transmission. To work around this I've added very small orifice models to replicate A-to-Case and B-to-Case leakage that is typical for axial piston motors.
If another solution exists already please advise.
Thank you

Réponses (1)

Yifeng Tang
Yifeng Tang le 27 Mar 2024
Hi Philip,
I feel the way you model it is very reasonable. Adding an small orifice or check valve mimics what happens in real life.
A similar modeling concept may be found in this actuator block: https://www.mathworks.com/help/hydro/ref/doubleactingactuatoril.html where the diagram shows how the leakage is implemented, and indeed it's an orifice.
The parametrization of that orifice will require some empirical data though.


En savoir plus sur Simscape Fluids dans Help Center et File Exchange




Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by