Block Diagram Algebra

[@ChristopherLum]

In case it is helpful, here are all my Control Theory videos in a single playlist kzbin.info/aero/PLxdnSsBqCrrF9KOQRB9ByfB0EUMwnLO9o. Please let me know what you think in the comments. Thanks for watching!

[@CareyEventing]

Thank you so much for these videos they are so informative and have been the only resource that has finally got my head around control!! I have been so daunted by the subject all of this year at uni having tried multiple textbooks/notes/videos all of which have left me more confused. Now I quite enjoy the topic thanks to you and I won't (fingers crossed) fail the module 😂😅 So much appreciation, thanks again

[@icgz711]

Dude…… you are absolutely phenomenal at teaching this stuff. Here is a medal 🥇

[@ChristopherLum]

Hi, Thanks for the kind words, I'm glad you enjoyed the video. If you find these videos helpful, I hope you'll consider supporting the channel via Patreon at www.patreon.com/christopherwlum or via the 'Thanks' button underneath the video. Given your interest in this topic, I'd love to have you a as a Patron as I'm able to talk/interact personally with all Patrons. There are lots more controls related videos on the channel so please feel free to check them out and let me know what you think. Thanks for watching! -Chris

[@ahungryflyer]

AE511: I appreciated the methodical explanation of each block diagram modification - plus an example at the end. This came in handy to check back on while completing the homework. It had been a while since I had last worked on any block diagram algebra.

[@user-ib4bg9kg5s]

This was a great video with awesome knowledge simplified to the max. Thank you so much. Greetings from Spain.

[@matthewbajamundi8774]

Never used simulink before in Matlab, so this video really helped me understand it. Thank you.

[@ChristopherLum]

Matt, I'm glad you found this. I've got other videos that go beyond AE501, I hope you find some helpful!

[@kleandrokoka1645]

Block diagrams seemed like black magic to me until now. Thank you so much for your video. It helped me tremendously

[@ChristopherLum]

I'm glad it was helpful. There are several related videos on the channel. Please feel free to check them out and I would love to hear what you think in the comments. Thanks for watching!

[@SMV1972]

С огромным удовольствием посмотрел. Очень красивая теория . Просто магия! И конечно преподнесено красиво, интересно, занимательно. Спасибо!!

[@nkululekoshoba4034]

Thanks for the video I've just realised that it works out easier if you start by moving the 2nd summing point to the front of G1 block Thank you, once again. You're a life saver

[@ChristopherLum]

Hi Nikululeko, Thanks for the kind words, I'm glad you enjoyed the video. If you find these videos helpful, I hope you'll consider supporting the channel via Patreon at www.patreon.com/christopherwlum. Given your interest in this topic, I'd love to have you a as a Patron as I'm able to talk/interact personally with all Patrons. Thanks for watching! -Chris

[@amelia4657]

Thank you so much for those classes. Im a student from Brazil and you are helping very much

[@selamhendrix5252]

Thanks for breaking it down and highlighting the cause for usual errors.

[@gamerrgirll3455]

You are a perfect teacher. I like your teaching style!!!!!

[@tonyradice4166]

Excellent presentation and very understandable progression. Will be checking out the rest of the videos as well.

[@ChristopherLum]

I'm glad it was helpful. I have a playlist of all the controls videos at kzbin.info/aero/PLxdnSsBqCrrF9KOQRB9ByfB0EUMwnLO9o, please feel free to check it out and please let me know what you think in the comments. Thanks for watching!

[@arthurgorling1665]

Fantastic lecture! Covered exactly what I needed to supplement my learning and preparation for the FE exam.

[@ChristopherLum]

I'm glad it was helpful. In case you are interested, I have several other related lectures at kzbin.info/aero/PLxdnSsBqCrrF9KOQRB9ByfB0EUMwnLO9o. Please feel free to check them out and let me know what you think, thanks for watching!

[@arthurgorling1665]

@@ChristopherLum Thank you, I'll be sure to check them out!

[@damjanmladenov8980]

Okay it would do me a lot of good if you could tell me the full name of FE so I can look it up and find maybe what the exact name of my course, but in English. The exact translation would be: "Systems and controlling (steering)" really can't find nothing. The whole course contains: Bode Plot, Nyquist Plot (Diagram), Laplace transform, mathematical models (you know Spring, Damper and Mass & make a block diagram of that), traces (don't know what you call them) and pretty much that's it. Could you give me a name of a course which contains that material? It would be much appreciated, thank you.

[@andrewchoi2780]

This is some good shit. Really helps to understand the math/logic behind the manipulations rather than just using them off the sheet.

[@msamuelw]

Should have found this when I was taking this course 2 years ago! Now I gotta watch this on my free time haha

[@ChristopherLum]

Hi Matt, Thanks for the kind words, I'm glad you enjoyed the video. If you find these videos helpful, I hope you'll consider supporting the channel via Patreon at www.patreon.com/christopherwlum or via the 'Thanks' button underneath the video. Given your interest in this topic, I'd love to have you a as a Patron as I'm able to talk/interact personally with all Patrons. I can also answer any questions, provide code, notes, downloads, etc. on Patreon. Thanks for watching! -Chris

[@SMV1972]

Какой молодец! Отличный урок! Спасибо

[@sethwhittington28]

AE511: Great breakdown of block diagram algebra. I had never heard of this before, and now I have.

[@xmkuu]

YOW bro YOU ARE SUCH AN AWESOME ! THIS HELPED ME MUCH MORE Comprehensive , rather than my professor XD ! Please keep it up making more contents about this.

[@elluri001]

Your videos are excellent. If all professors taught control the way you do students would get higher grades. Thank you

[@ChristopherLum]

I'm glad it was helpful. I have a playlist of all the controls videos at kzbin.info/aero/PLxdnSsBqCrrF9KOQRB9ByfB0EUMwnLO9o, please feel free to check it out and please let me know what you think in the comments. Thanks for watching!

[@lmarasinghe9757]

Great video! Clarified many problems I had regarding block diagram algebra. Thank you very much.

[@ChristopherLum]

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

[@jawh1553]

You are even much better than my professor

[@TriMartz-f4x]

[AE511] Great summary of block diagram operations

[@krystoflis7157]

Great lesson on block diagram algebra. Thank you!

[@nathanlipshutz3140]

AE511: Great refresher on block diagrams. I don't think I've reviewed this material since 501. I've never yet had to use it in my engineering career, but I imagine it will come up in the future, especially if dealing with controls of course.

[@seyhuncelik9584]

Thank you for all these videos.

[@ChristopherLum]

Hi Seyhun, Thanks for the kind words, I'm glad you enjoyed the video. If you find these videos helpful, I hope you'll consider supporting the channel via Patreon at www.patreon.com/christopherwlum. Given your interest in this topic, I'd love to have you a as a Patron as I'm able to talk/interact personally with all Patrons. Thanks for watching! -Chris

[@BubbleheadDiver]

What a great video. Thank you for putting this together!

[@ChristopherLum]

Hi Brian, Thanks for the kind words, I'm glad you enjoyed the video. If you find these videos helpful, I hope you'll consider supporting the channel via Patreon at www.patreon.com/christopherwlum or via the 'Thanks' button underneath the video. Given your interest in this topic, I'd love to have you a as a Patron as I'm able to talk/interact personally with all Patrons. Thanks for watching! -Chris

[@ThomasNiemisto]

AE 511: I Googled "Block Diagram Algebra" and this video came up as the second search result, so congrats on your search engine optimization 😁

[@ChristopherLum]

Ha, that is great, I'm glad the algorithm is starting to recognize the content!

[@aianhvlog5320]

Excellent Presentation Chris.

[@ChristopherLum]

I'm glad it was helpful. There are several related videos on the channel. Please feel free to check them out and I would love to hear what you think in the comments. Thanks for watching!

[@robertowagnerdacosta2508]

Uma pena eu descobrir esse canal no fim da faculdade, pois acabei de terminar Controle 3. Queria ter conhecido esse canal ainda em modelagem de sistemas!

[@Eng.AwsNafea]

Great video ..Thanks

[@ChristopherLum]

I'm glad it was helpful. There are several related videos on the channel. Please feel free to check them out and I would love to hear what you think in the comments. Thanks for watching!

[@sachiootsuka]

Your videos are great!

[@judem433]

Thanks a great deal for this video. Great and simplified lecture. Such a life saver. Meanwhile, apart from Mathematica, is there any way the values can be converted to polynomials in matlab directly in order to get those coefficients?

[@brianhumphreys5161]

AE511 - There is a noticeable difference in volume between the whiteboard and software sections (software sections are very quiet by comparison)

[@ChristopherLum]

Brian, thanks for the feedback, I will try to fix this in future videos.

[@alexanderwallenkiessling9378]

Quick question: at 52:00 you noted the extreme importance of the opposite sign. Why does that matter? Thank you for the awesome lectures!

[@carultch]

For a forward transfer function G(s) and a feedback transfer function H(s), with negative feedback, the combined transfer function is: G(s)/(1 + G(s)*H(s)) If we switch to positive feedback, we get: G(s)/(1 - G(s)*H(s)) The sign in the denominator is the opposite of the kind of feedback you have. Here's the proof from first principles. Assign input X(s) and output Y(s). Assign point P to be just before the G(s) transfer function, and point Q to be just before the negative feedback connection. This means X(s), P, and Q are related as such: P = X(s) - Q This also means that Y(s) and P are related as such, as well as Y(s) and Q: Y(s) = G(s)*P Q = Y(s)*H(s) Three equations, three unknowns (P, Q, and Y(s)). Combine equations and solve for unknowns: P = X(s) - Y(s)*H(s) P = X(s) - P*G(s)*H(s) Shuffle P-terms to the left, and factor: P + P*G(s)*H(s) = X(s) P*(1 + G(s)*H(s)) = X(s) Isolate P: P = X(s)/(1 + G(s)*H(s)) Substitute in equation for Y(s): Y(s) = X(s)*G(s)/(1 + G(s)*H(s)) Resulting combined transfer function: Y(s)/X(s) = G(s)/(1 + G(s)*H(s))

[@wes1588]

Very helpful!

[@hariharanramamurthy9946]

thanks a lot, sir but any books to practice?

[@damjanmladenov8980]

Okay it would do me a lot of good if you could tell me the full name of FE so I can look it up and find maybe what the exact name of my course, but in English. The exact translation would be: "Systems and controlling (steering)" really can't find nothing. The whole course contains: Bode Plot, Nyquist Plot (Diagram), Laplace transform, mathematical models (you know Spring, Damper and Mass & make a block diagram of that), traces (don't know what you call them) and pretty much that's it. Could you give me a name of a course which contains that material? It would be much appreciated, thank you.

[@ChristopherLum]

Hi Damjan, I can answer questions in greater depth at www.patreon.com/christopherwlum. I hope you'll consider becoming a Patron so we can interact more closely. Thanks for watching!

[@darylfishback-duran3580]

AE511, Thank you for all these videos

[@mikerudolf6485]

AE511 - thanks for the refresher on block diagram algebra. Clarification question: for single input/single output systems, we do not need to keep all the blocks in the same order, correct?

[@ChristopherLum]

Hi Mike, you are correct, order does not matter with siso systems

[@kaisemuw7074]

AE 511. Great lecture.

[@VedVikas]

Sir, you have not covered moving a branch point behind or ahead of a summing node.

[@airesearch0844]

There was one in the example :-)

[@ghaithalshjrawi2540]

I am dealing with aerospace.,so i should write its transfer function in matter of conrolling attitude and pitch angle How can i get the transfer function of ith Can i use mass, spring, damper as a mechanical model or i must use a pendulum

[@gitarplayer13]

AE511 - Great video.

[@kristenleenerman1351]

Introduction to Block Diagram Reduction

[@ajj7794]

i am trying my own method, see at the summation point i just said that (1+G1)*G2 then in negitive feedback i get (G2+G1G2)/1+H*(G2+G1G2) how is this wrong?

[@alanlee4326]

AE511 - clearly explained.

[@wenjunzhang5524]

thanks a lot!

[@ChristopherLum]

Hi Wenjun, Thanks for the kind words, I'm glad you enjoyed the video. If you find these videos helpful, I hope you'll consider supporting the channel via Patreon at www.patreon.com/christopherwlum or via the 'Thanks' button underneath the video. Given your interest in this topic, I'd love to have you a as a Patron as I'm able to talk/interact personally with all Patrons. Thanks for watching! -Chris

[@donabien-aime1884]

Watch it for another time. #AE511

[@satriodwinugroho2564]

Thanks :)

[@andrewsantopietro3526]

3:30 why would you treat Katerina like that how could you!

[@ChristopherLum]

Haha, after watching Daniel Tiger's Neighborhood for the 200th time you tend to want to do things like this :)

[@edwardsanchez2331]

AE511, good lecture

[@justinhendrick3743]

AE511

[@beeobama6091]

bro can u b my prof, my cs prof sux

[@Ulises_Mania]

me vale verga :3