In case it is helpful, here are all my Matlab videos in a single playlist ruclips.net/p/PLxdnSsBqCrrEU0dLSrTcl0-w9cVYKMTaF. Please let me know what you think in the comments. Thanks for watching!
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!
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.
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
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.
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.
Hi, Thanks for reaching out, I'm glad you enjoyed the video. Unfortunately I'm unable to respond to questions on RUclips 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
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?
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
Hi, Thanks for reaching out, I'm glad you enjoyed the video. Unfortunately I'm unable to respond to questions on RUclips 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
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.
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.
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!
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?
In case it is helpful, here are all my Matlab videos in a single playlist ruclips.net/p/PLxdnSsBqCrrEU0dLSrTcl0-w9cVYKMTaF. Please let me know what you think in the comments. Thanks for watching!
AE 512: Discussion of the end game of linearizing these systems in the last minute of the video was really helpful for me, thanks!
This was actually SO FANTASTIC. THANKS!
I want to thank you for your enlightening videos, appreciate!
Glad you like them!
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.
AE 512: Good tutorial.
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!
That's a very good video. Clear and organized. Keep the work going! You just earned a new subscriber
I'm glad it was helpful, thanks for watching!
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.
AA516: Good video! I am excited to apply it to the RCAM model
AE511: awesome! Thanks Chris, now I can try to use this linearization technique on my final project!
Great, I'm excited to see what you do with it!
Thanks for the showing the tools to linearize a system!
Thank you so much for your excellent explanation
Glad it was helpful!
A lot of info packed into this video. Great video, thanks!
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
I worked alongside the tutorial. Easy to follow.
AA516: It's interesting to see how there's two fairly convenient ways to linearize non-linear Simulink models!
Linmod is extremely powerful and this video is a great demonstration of it!
thank you for the lecture, definitely need to play around with the linearization more.
Hi Professor the videos are very helpful thank you for sharing .
AE511: nice video, great way to see how different inputs will affect specific outputs
AA516 - I'm enjoying the lectures; looking forward to applying the techniques introduced this week to RCAM
AE511: Interesting to see the differences between the non linear and linear models, especially for velocity as the step input increased
AE511: Wow, Matlab really is a powerful tool!
AE511: great video on using Matlab to linearize a nonlinear system model.
AE512: Would love to see how these two optimization/trimming techniques could be applied within Simscape
You are amazing. Thank you
Rahul, thanks again for watching!
AA516: Thank you!
AA516: Sick!
Great video.
Jason-AE512: I really like the code explanation part, but if I can have the source code to practice, that will be much helpful.
thank you for your presentation. would you please show us the steps how to model planner vehicle in Simulink?
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.
Good question, it really is a combination of both methods. Generally it is easier to use a Matlab Function if the algorithm is complex.
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.
Hi,
Thanks for reaching out, I'm glad you enjoyed the video. Unfortunately I'm unable to respond to questions on RUclips 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
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?
Thanks for catching up on the comments, I've got you down for participation now
great
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
Hi,
Thanks for reaching out, I'm glad you enjoyed the video. Unfortunately I'm unable to respond to questions on RUclips 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
AA516 How can you tell if an operating point is stable or unstable based on the linearization of a system?
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.
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.
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!
AE 511. Impressively power tools in MATLAB.
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?
Hello,
Did you figure out? I faced this problem, too. Can you help me if you figure out?
A A 516: Ojasvi Kamboj
show us building amatlab/simulink model of planner vehicle
Matlab tools for linearizing a Simulink model
AA516:Po
AA516
Hi sir, do you have fiver account ?