3 ways motorized valves
Hello everyone,
I am newbie at Twin Builder. Is there anyone who tried to build 3 way valves ROM model which is controlled by motorized gear system ? I want to analyse its on-off time under the 20 bar water pressure.
I need your ideas and advices.
Thank you.
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Best Answer
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dheerajvemula Member
Hello ,
There are two ways to analyze the on-off times of a 3-way valve:
- Create a system model with the available modelica/modelon libraries in twin builder. This system would be 1D representation of the valve. Depending on the architecture of the valve you can couple the system model with a controller, hydraulic system if required. This method can help analyze the on-off times under different system conditions.
With this method the valve and rest of the system is modeled based on the spec sheet data
- Another approach would be like approach 1, only with a reduced order model of the 3-way valve instead of 1D model.
Reduced order model generation:
- Use 3D simulation data of the valve to generate different training scenarios
- Use the twin builder’s ROM builder tools (Static or Dynamic depending on the boundary conditions) to generate a ROM out of the training scenarios
Thank you,
Dheeraj
Answers
Hello,
We are trying to find you an answer internally. We will soon be posting a response.
Thank you for your patience.
Best,
Karthik
Hello Mr.Kremella,
Thank you for your interest and efforts. Have healthy days.
Regards.
Hello ,
There are two ways to analyze the on-off times of a 3-way valve:
With this method the valve and rest of the system is modeled based on the spec sheet data
Reduced order model generation:
Thank you,
Dheeraj
Hello,
I hope you are well.
I created a model which is separeted in to 2 modellica model as gear, which is motorized mechanism, and valve. I tried to simulate output torque of reduction. Because there is reduction with 1:24 gear ratio. After that, the torque ,which is generated from this part of valve, should be the reference of my systems on or off condition.
But still, I dont have what I need. You can see my works below. The liquid, we can assume it is liquid. And the pump get rotational movement from tractor shaft as 540rpm. With the thee junctions, I tried to get best fit to our valves.
Regards.
Hi,
The model looks interesting, however I don't understand what is missing. Can you elaborate on the difficulties you are facing? Is it about the model compilation or the outputs of models not having enough accuracy ?
Best
Dheeraj
Hello,
I hope you are well.
Still I can't get what is missing in my model. I was trying to direct the liquid. Because, in reality I'm using motorized valves and my real system include at least 7 valves.
Actually, I could not get motor run condition to my valves.