Linearizing a Simulink Model Using the Linear Analysis Tool and ‘linmod’

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Күн бұрын

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@ChristopherLum 4 жыл бұрын

In case it is helpful, here are all my Matlab videos in a single playlist kzbin.info/aero/PLxdnSsBqCrrEU0dLSrTcl0-w9cVYKMTaF. Please let me know what you think in the comments. Thanks for watching!

@davidtelgen8114 4 ай бұрын

AE 512: Discussion of the end game of linearizing these systems in the last minute of the video was really helpful for me, thanks!

@isaiahwallace5119 5 ай бұрын

This was actually SO FANTASTIC. THANKS!

@philipcasey8361 Жыл бұрын

AE511: Developing and then using the planar vehicle model throughout the class and building the controllers on top of it was really cool. Thanks for a fun quarter!

@akanguven114 4 жыл бұрын

I want to thank you for your enlightening videos, appreciate!

@ChristopherLum 4 жыл бұрын

Glad you like them!

@gitarplayer13 5 жыл бұрын

Thanks professor. I liked the video, but I think it would be better with a little more up front discussion on why we want to linearize the model. It would help drive the discussion. Maybe this is because I may have missed an earlier video.

@GlaerAven 5 жыл бұрын

That's a very good video. Clear and organized. Keep the work going! You just earned a new subscriber

@ChristopherLum 5 жыл бұрын

I'm glad it was helpful, thanks for watching!

@sethwhittington28 Жыл бұрын

AE511: awesome! Thanks Chris, now I can try to use this linearization technique on my final project!

@ChristopherLum Жыл бұрын

Great, I'm excited to see what you do with it!

@justinhendrick3743 5 жыл бұрын

Thanks for the showing the tools to linearize a system!

@boeing797screamliner 3 жыл бұрын

AA516 - I'm enjoying the lectures; looking forward to applying the techniques introduced this week to RCAM

@yaffetbedru6612 7 ай бұрын

AA516: Thanks for sharing about the linmod tool and how I can linearize blocks of my SImulink models to reach a linear state-space model.

@krystoflis7157 5 жыл бұрын

Linmod is extremely powerful and this video is a great demonstration of it!

@edwardsanchez2331 5 жыл бұрын

A lot of info packed into this video. Great video, thanks!

@zaneyosif Жыл бұрын

AE511: Interesting to see the differences between the non linear and linear models, especially for velocity as the step input increased

@darylfishback-duran3580 5 жыл бұрын

I worked alongside the tutorial. Easy to follow.

@selamhendrix5252 5 жыл бұрын

thank you for the lecture, definitely need to play around with the linearization more.

@MattAero 5 жыл бұрын

AE511: nice video, great way to see how different inputs will affect specific outputs

@milesrobertroane955 7 ай бұрын

AA516: Good video! I am excited to apply it to the RCAM model

@khlad31 4 жыл бұрын

Thank you so much for your excellent explanation

@ChristopherLum 4 жыл бұрын

Glad it was helpful!

@alanlee4326 5 жыл бұрын

AE511: great video on using Matlab to linearize a nonlinear system model.

@edwardmau5877 4 ай бұрын

AE 512: Good tutorial.

@MuhammadArshad-gj3fy Жыл бұрын

Hi Professor the videos are very helpful thank you for sharing .

@chayweaver.2995 4 ай бұрын

AE512: Would love to see how these two optimization/trimming techniques could be applied within Simscape

@rowellcastro2683 7 ай бұрын

AA516: I think everything is coming together. So first we model a nonlinear system, linearize it at a trim point, then create a feedback control system like a simple PID controller and actuator(s) to make the system stay in the trim point. NICE

@liupeterw 7 ай бұрын

AA516: It's interesting to see how there's two fairly convenient ways to linearize non-linear Simulink models!

@azezegizachew3713 3 жыл бұрын

thank you for your presentation. would you please show us the steps how to model planner vehicle in Simulink?

@aimeepak717 Жыл бұрын

AE511: Wow, Matlab really is a powerful tool!

@rahulsylvester7012 5 жыл бұрын

You are amazing. Thank you

@ChristopherLum 5 жыл бұрын

Rahul, thanks again for watching!

@danielmoore1994 2 жыл бұрын

AA516 - Thanks for another great lecture. Assuming that you are using Matlab and Simulink in industry, I am curious whether you tend to define system models within the Simulink GUI or as a function referenced by the Simulink "Matlab Function" call or something comparable.

@ChristopherLum 2 жыл бұрын

Good question, it really is a combination of both methods. Generally it is easier to use a Matlab Function if the algorithm is complex.

@WalkingDeaDJ 4 ай бұрын

Jason-AE512: I really like the code explanation part, but if I can have the source code to practice, that will be much helpful.

@simoneboccardi7942 4 жыл бұрын

Great video.

@law7780 2 жыл бұрын

Hi Christopher, i have a question regarding designing a linear controller for the linearized model, when we linearize the model in the desired trim point. For example the watertank model givin by simulink. Why does the linear controller (e.g. PID) works fine with the non-linear system afterward? The reference of the height can be set arbitrarly, altohugh i linearized the model for a certain height and not for all height. But afterwards it works with all reference heights.

@ChristopherLum 2 жыл бұрын

Hi, Thanks for reaching out, I'm glad you enjoyed the video. Unfortunately I'm unable to respond to questions on KZbin due to the sheer volume of inquiries that I receive. That being said, I hope you'll consider supporting the channel via Patreon at www.patreon.com/christopherwlum as I'll be able to answer questions there. Given your interest in the topic, I'd love to have you as a Patron as I'm able to talk/interact personally with Patrons. Thanks for watching! -Chris

@ugwaadukwu8847 3 жыл бұрын

Thanks for this excellent work. Using the linear analysis tool is great but it appears one needs a separate subscription for that. When I use the linmode, the step response does not behave similar to the output i obtained from then linmode. What am I not doing correctly? Thanks.

@ChristopherLum 3 жыл бұрын

I am able to answer question directly through my Patreon page at www.patreon.com/christopherwlum. Please free to submit your question there and we can discuss. Thanks for watching and for supporting the channel!

@bsgove 4 ай бұрын

AE512: while it is cool that you can linearize about the trim point, I don't quite understand why this is necessary if you have access to a nonlinear plant that should produce more accurate results... Perhaps it is just for control design?

@ChristopherLum 4 ай бұрын

Thanks for catching up on the comments, I've got you down for participation now

@princekeoki4603 7 ай бұрын

AA516: Sick!

@Colin_Baxter_UW 7 ай бұрын

AA516: Thank you!

@syafiqm2140 2 жыл бұрын

I did for 2input-3output MIMO system. I got the result that the system has decoupled. Available transfer function only Input 1 respecting to output 1 & 2, and also input 2 respecting to output 3. For me, it is not logic in the first place, because every state variable dependent to each other in every differential equation. Is it reliable that they can have decoupled system like this? I plotted the response, it seems that linearized model still follow the nonlinear one

@ChristopherLum 2 жыл бұрын

@eneskucuksoy2463 3 жыл бұрын

Hello, "The values of the "Numerator" and "Denominator" properties must be row vectors or cell arrays of row vectors, where each vector is nonempty and containing numeric data. Type "help tf.num" or "help tf.den" for more information". I have that kind of error I didnt find the proper solution for this. Do you have any idea?

@musaenes8457 Жыл бұрын

Hello, Did you figure out? I faced this problem, too. Can you help me if you figure out?

@kennethwilsey6260 2 жыл бұрын

AA516 How can you tell if an operating point is stable or unstable based on the linearization of a system?

@ChristopherLum 2 жыл бұрын

Kenneth, great question. The second you have your linearization, you can check the eigenvalues of the A matrix to understand the stability of this trim point.