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 Wed Feb 24 22:13:47 2021, Jon, Update, CDS, Planning document for front-end testing Fri Mar 5 17:48:25 2021, Jon, Update, CDS, Front-end testing Tue Mar 9 16:52:47 2021, Jon, Update, CDS, Front-end testing Tue Mar 16 16:27:22 2021, Jon, Update, CDS, Front-end testing Tue Mar 16 19:04:20 2021, gautam, Update, CDS, Front-end testing Fri Mar 19 18:14:56 2021, Jon, Update, CDS, Front-end testing Wed Mar 24 19:02:21 2021, Jon, Update, CDS, Front-end testing Mon Mar 29 17:55:50 2021, Jon, Update, CDS, Front-end testing Tue Mar 30 18:21:34 2021, Jon, Update, CDS, Front-end testing Tue Apr 6 07:19:11 2021, Jon, Update, CDS, New SimPlant cymac Tue Apr 6 11:13:01 2021, Jon, Update, CDS, FE testing Sat Apr 10 08:51:32 2021, Jon, Update, CDS, I/O Chassis Assembly Thu Apr 29 10:51:35 2021, Jon, Update, CDS, I/O Chassis Assembly Tue May 4 07:38:36 2021, Jon, Update, CDS, I/O Chassis Assembly Tue May 11 16:29:55 2021, Jon, Update, CDS, I/O Chassis Assembly Tue May 11 17:43:09 2021, Koji, Update, CDS, I/O Chassis Assembly Fri May 28 11:16:21 2021, Jon, Update, CDS, Front-End Assembly and Testing Sun Jun 6 08:42:05 2021, Jon, Update, CDS, Front-End Assembly and Testing Tue Jun 22 16:53:01 2021, Ian MacMillan, Update, CDS, Front-End Assembly and Testing Thu Jun 24 17:32:52 2021, Ian MacMillan, Update, CDS, Front-End Assembly and Testing Fri Jun 25 14:06:10 2021, Jon, Update, CDS, Front-End Assembly and Testing
Message ID: 16059     Entry time: Wed Apr 21 10:03:01 2021     In reply to: 16050     Reply to this: 16061   16081
 Author: Ian MacMillan Type: Update Category: CDS Subject: 40m LSC simPlant model

So I am stuck on how to add the control block to my model. I am trying to make it as simple as possible with just a simple transfer function for a damped harmonic oscillator and then the control block (see overview.png).

The transfer function I am using is:

$H(s)=\frac{Q^{-2} f^{-2}s^2+1}{f^{-4}s^4+(Q^{-2} f^{-2}-2f^{-2})s^2+1}$

For future generations: To measure the transfer function (to verify that it is doing what it says it is) I am using the discrete transfer function estimator block. To get a quick transfer function estimator Simulink program run ex_discrete_transfer_function_estimator in the Matlab command line. This works well for filters but it was hit or miss using the discrete transfer function.

The roadblock I am running into right now is that I can't figure out how to add the controller to the model. Not on an interpretation level but in a very straightforward "can I drag it into my model and will it just work" kind of way.

I am also a little confused as to exactly which block would do the controlling. Because I want to just use the x of the pendulum (its position) I think I want to use the suspension controls which come are connected to in the suspension plant model. But where exactly is it and how can I get the model? I can't seem to find it.

 Attachment 1: Overview.png  15 kB  Uploaded Wed Apr 21 11:08:17 2021
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