I'm working on a fluid dynamics assignment using MATLAB Simscape, but I'm struggling because the professor's reference diagrams look different from the actual MATLAB component

Hi, I'm working on a university fluid dynamics project using MATLAB Simulink and Simscape (Isothermal Liquid domain).

I'm trying to model the hydraulic circuit shown in the attached reference image.

However, I'm facing issue: The professor's schematic symbols don't match Simscape component blocks, so I'm unsure how to map them.

My setup:

Cv = 1.0

Piston diameter = 2 in

Load = 4000 lb

Specific gravity of oil = 0.90

PRV setting = 1400 psi

Does anyone have suggestions or example models showing how to build this correctly using Simscape IL components? Any help or block mapping guides would be appreciated!

[Dyuman Joshi]

I doubt the circuit was made in Simscape as it looks like it was made in a 2D CAD software. So, a Simscape model might not actually match it visually.

As for example models, you could refer these -

https://in.mathworks.com/help/hydro/flow-control-category.html

https://in.mathworks.com/help/hydro/actuation-category.html

Answer 1

[Vinay]

Hi @희제,

The fluid dynamics model is constructed using components from the Simscape Isothermal Liquid library. The following blocks are utilized:

• Pressure Relief Valve (IL): https://www.mathworks.com/help/hydro/ref/pressurereliefvalveil.html
• Reservoir (IL) : https://www.mathworks.com/help/simscape/ref/reservoiril.html
• 2-Way Directional Valve (IL) : https://www.mathworks.com/help/hydro/ref/2waydirectionalvalveil.html
• Pressure Sensor(IL) : https://www.mathworks.com/help/simscape/ref/pressuresensoril.html
• Pressure-Compensated Flow Control Valve (IL) : https://www.mathworks.com/help/hydro/ref/pressurecompensatorvalveil.html
• Pipe(IL) : https://www.mathworks.com/help/hydro/ref/pipeil.html

The image below illustrates the Simscape implementation of the fluid model using these components.

I hope this resolves the query.