3/2 pneumatic valve model
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I am trying to design a 3/2 pneumatic valve (3 ports and 2 positions). The valve has a supply port, common port, and an exhaust port. There isn't a "switch" that I can use in the model, so I have a convoluted series of variable restriction elements in the system. This works on its own, but returns errors when added to the whole system.
The flow from supply->common and common->exhaust have their own variable restrictions (restriction varies with differential pressure) and I have another variable restriction in series with each one of these acting as a "switch" to turn flow on and off between the ports. This results in a node with no volume element (which I have been reading is a bad thing).
Any help or advice on how to model this would be greatly appreciated.
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Abhi Sundararaman
am 27 Jul. 2017
It sounds like you're building this component using a series of other components (like the variable restriction component, and other pipes). I think it would be easier to just code your own custom component using the Simscape Language.
The following link has some info on creating custom components, with some examples:
Additionally, you can look at the source code for some of the existing simscape blocks, like the various pipes, and create your own 3/2 valve.
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Dhruv Shukla
am 3 Mai 2019
Hello Ryan,
I am making a project on pneumatic vacuum lifting system. For that, I have to create some custom block such as vacuum pump, vacuum filter and suction cup. So, can you please tell me that how can i create a custom block of pneumatic.
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