Routh-Hurwitz Criterion, An Introduction

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  • Опубліковано 2 гру 2024

КОМЕНТАРІ • 398

  • @robertmandell1679
    @robertmandell1679 8 років тому +500

    why do I pay for university teachers when I can watch this guy, and learn 3 classes worth of info in 13 min.... Thanks Brian! Great vid!

    • @theboxingbiker
      @theboxingbiker 7 років тому +24

      Exactly, my teacher spend 2 classes and still didn't make any sense.

    • @NicksDomain101
      @NicksDomain101 5 років тому +8

      Double speed and its 6 minutes hahah

    • @howardlam6181
      @howardlam6181 5 років тому +3

      pretty sure you learn Routh-Hurwitz together with root locus and other stability criteria in one single class. That said, I had an Indian lecturer whose accent was not comprehensible to me. I would love subtitles.

    • @hessamramezani4962
      @hessamramezani4962 5 років тому +3

      @Felix Carpio Of course in real cases you don't get such simple functions as polynomials :D that is just for the demonstration

    • @RM-up2ug
      @RM-up2ug 4 роки тому +7

      Just for certificate...😥

  • @covafreddy
    @covafreddy 8 років тому +339

    You are the reason I'm becoming a Mechanical Engineer this Wednesday

    • @PunmasterSTP
      @PunmasterSTP 2 роки тому +5

      I know it's been years, but I just came across your comment and was curious. How has it been being an engineer?

    • @shakirobaid2895
      @shakirobaid2895 2 роки тому +2

      you study this as a mechanical engineer?

    • @DinaraY-o2g
      @DinaraY-o2g Рік тому

      @@shakirobaid2895I think a lot of engineers study controls, I am in bioengineering for example

    • @kenboyz142
      @kenboyz142 11 місяців тому

      @@shakirobaid2895yes we do

    • @nathanrischer5379
      @nathanrischer5379 8 місяців тому

      @@shakirobaid2895 As a mechanical engineer, can confirm. If I choose to I can take 3 years of control courses!

  • @Barracuda397
    @Barracuda397 4 роки тому +41

    I know this video is 7 years old, but I just wanted to say thank you. You're an excellent teacher.

    • @PunmasterSTP
      @PunmasterSTP 2 роки тому +1

      It's 9 years old now, but I feel exactly the same way!

    • @imacoder3160
      @imacoder3160 11 місяців тому

      11 years here))@@PunmasterSTP

  • @hanbiniwa
    @hanbiniwa 8 років тому +26

    9:52 "Tracing number 8" !!! Now I'll never forget how to fill out a Routh array. Thanks Brian!

    • @Rejan227
      @Rejan227 9 місяців тому

      came down here to find this comment ^

  • @xXABCtXx
    @xXABCtXx 5 років тому +28

    I never comment on videos but man you're a gifted teacher, you articulated the information so well that it just clicked for me thank you!!

  • @petepeterson5337
    @petepeterson5337 9 днів тому

    I had a terrific controls professor in college who taught this stuff, but I was not a very good student in this topic.
    Now decades later in the latter half of my somewhat successful engineering career, I am back to muscling up on controls with this excellent series.
    Thanks Brian Douglas!

  • @mathand69
    @mathand69 3 роки тому +1

    No joke understood this completely in 10 seconds vs 3*45 min lectures! Legend!!!

  • @fethullahpolat8621
    @fethullahpolat8621 2 роки тому +1

    I wish you would continue to share videos. I think
    As a Control Engineer candidate in Turkey, I say, you are explaining better than you were told at the university.
    So glad I have you.

    • @BrianBDouglas
      @BrianBDouglas  2 роки тому +1

      Thanks! Even though I don’t post on my channel anymore I still make videos for the Matlab channel. You can find them all here: engineeringmedia.com/videos.

  • @RionellKoay
    @RionellKoay 8 років тому +38

    your explanation is top-notch!

  • @waleedalrashed1411
    @waleedalrashed1411 4 роки тому

    Two lecturers * 2 hours each to explain Routh-Hurwitz Criterion in my university. summarized under 13 minutes in this video. Seriously this pattern of filling the array is much faster than memorizing the equations for each row!. I appreciate your hard work.

  • @theodontosaurus
    @theodontosaurus 9 років тому +2

    So much better than my lecturer's explanation, what would we do without people like you on the internet!

  • @luk45ful
    @luk45ful 2 роки тому +3

    Gosh this is such a good explanation for Routh Array! I'm glad someone can explain control topics this good

  • @MarixosDesigns
    @MarixosDesigns 2 роки тому

    2 weeks worth of classes in 13 min video. Thank you !

  • @hazrlkicerik3207
    @hazrlkicerik3207 8 місяців тому

    Your pattern approach is so good, I appreciate it. Memorizing equation without knowing its logic behind them is worse than memorizing the pattern without knowing the logic behind it.

  • @praveendesilva464
    @praveendesilva464 9 років тому

    One of the best videos playlists on UA-cam. Concise, precise and very clear.

  • @mohdtausif9627
    @mohdtausif9627 3 місяці тому

    Wonderful. I am teaching to University students by listening to your lectures. A must watch for everyone trying to understand Control Systems with reasoning.

  • @arpitlahoti8720
    @arpitlahoti8720 7 років тому

    Awesome Explanation in just 13 minutes, whereas people in college can't explain it in 50 minutes with this much clarity... Great Job :)

  • @emmanuelmwanza9737
    @emmanuelmwanza9737 3 місяці тому

    you are a best tutor and I appreciate you. As I go to my test tomorrow I will understand the test because of you.

  • @mohammedfaheem2575
    @mohammedfaheem2575 4 роки тому +6

    UA-cam algorithm should recommend useful stuff like this instead of random tiktok videos. Great lecture bro. I hope i can pass the paper this time.

  • @hyunochang7694
    @hyunochang7694 4 роки тому

    You saved more lives than you think with this video. 100%. Appreciate the great explanation.

  • @kjellikhill8923
    @kjellikhill8923 11 років тому +2

    Thank you for some great videos Brian. I'm a Norwegian engineering student and it has helped me a lot in understanding the Routh Array.

  • @abidriaz_
    @abidriaz_ 5 років тому

    My university lecture on this topic was two whole hours and I got it in under 13 minutes here, thank you for your clear explanation.

  • @Yes-bp1vw
    @Yes-bp1vw 3 роки тому

    you've made it 10 times more easy than how my teacher explained it! now i'm seriously mad about how much i pay in tuition fees for researches how want to teach but don't have the ability to deliver an info!

  • @LOTIL62
    @LOTIL62 11 років тому

    I'm doing my Feedback control homework right now, I have found your technique to not only be simple, but nowhere near as convoluted as the book and my professor makes it out to be, for that I thank you greatly!

  • @rishimohan6628
    @rishimohan6628 11 років тому

    Brian, you are awesome! I'm a novice at control theory and I tried reading up at-least 3 books to get my basics right. None of the books can match up to the simplicity of your teaching methods. Thanks for all the videos. Keep em coming.

  • @elizaldodesousajunior9077
    @elizaldodesousajunior9077 4 роки тому +1

    Great explanation! Better than my entire semester classes at uni. Thank you very much, Brian!

  • @merlissoto3923
    @merlissoto3923 7 років тому +1

    Robert Mandell, I think the same you do! Brian, tus clases son excelentes, la manera de transmitir la información de una manera significativa, concisa, oportuna y gráfica. En verdad muchas gracias por explicarme de una manera tan eficiente!!!! You're a great teacher!!!

  • @aimene_tayebbey
    @aimene_tayebbey 7 років тому

    you know what man, a simple thank you could never show how much greatful i am to you, you're a hero, keep up the good job

  • @gadegroof
    @gadegroof 10 років тому +9

    Hi Brain, Thanks a lot it help me with my graduation.

  • @lostinthewoods357
    @lostinthewoods357 10 років тому +12

    HOLY COW!! You're the MAN! I can't thank you enough

  • @granzahk8029
    @granzahk8029 6 років тому

    I just watched a 45 minute lecture where my professor loosely went over the math, assigned 1 Routh Hurwitz problem for homework and said 1 example will be on the exam. This theory is sort of antiquated now what with Wolfram Alpha now, but without this video I would not have been able to do the damn homework. Thanks

  • @insideSFPD
    @insideSFPD 8 років тому

    This 12 Min probably saved me a few hours trying to understand. Thanks a lot!

  • @flborges
    @flborges 6 місяців тому

    can't believe this video is 12 years old . awesome, lecture!

  • @ongorennn
    @ongorennn 7 років тому +5

    great vid! my professors should watch you and learn something from you. hi from Turkey!

  • @supersuperintendant
    @supersuperintendant 11 років тому

    You should really be getting paid to do this, your teaching is simply phenomenal

  • @maxlav742
    @maxlav742 8 років тому

    Thank you so much! , I missed 2 weeks of univesity lectures and these videos just saved me

  • @o0ORodriguezO0o
    @o0ORodriguezO0o 9 років тому

    Two thumbs up, iv been staring at my automatic control book for an hour trying to dechipher a RH-array. Piece of cake solving it now, i subscribed!

  • @BigPhatFauxny
    @BigPhatFauxny 8 років тому

    You are really excellent at explaining this, my state university controls prof could never dream to convey the Routh, root locus or Nyquist stability methods as well as you have in your videos. Thank you very much!

  • @jobta
    @jobta 12 років тому

    Hi Brian, first of all, great vids, they help a lot. All of your real life examples really make a difference understanding all the concepts.
    I would like to suggest you to "fix" the playlist order. This video talks about some concepts we have not heard about yet (if we are following the playlist order). You should put the "Stability of Closed Loop Control Systems" video before this one so we all can understand it all.
    And thanks once more!

  • @VoodooStyx
    @VoodooStyx 8 років тому

    You enunciate your words clearly which means I can actually follow this tutorial! Thank you and keep up the good work :D

  • @DirkIronside
    @DirkIronside 7 років тому

    If you noticed a spike in likes, views or subscriptions, then I send regards from the Singapore Polytechnic! Your 3 videos on Routh-Hurwitz Criterion were used by many engineering students here to learn about the Routh Array Method to determine stability of control systems during a "Home-Based Learning" week. We think your explanations are brilliant and memorable!

  • @iliakorovin
    @iliakorovin 11 років тому

    You are a legend! Most useful, easy to understand straight forward lectures ever! Helping me heaps with my final year thesis of designing a inverter controller :-)

  • @PunmasterSTP
    @PunmasterSTP 2 роки тому

    Though this video is nine years old now, I also think it's still one of the best! Everything from the background knowledge provided to the crispness of the explanation and the tidy handwriting was wonderful. On a side note, I think the point about a sign change in the original polynomial is related to Descartes' rule of signs; specifically, if there is an odd number of sign changes, then there must be an odd number of positive real roots. In any case, thanks again!

  • @yunusemrekoc3462
    @yunusemrekoc3462 9 років тому

    Sir, this is perfect explanation. You explained 50 min class in a ten min. Thanks, hopefully you are going to keep recording.

  • @TurdBoi666
    @TurdBoi666 6 місяців тому +1

    This helped me sooo much. Thanks a lot

  • @johnteoss
    @johnteoss 7 років тому

    you are awesome! you manage to explain the example together with the theory fully in a small amount of time! that's how any youtube educator should be, make it clear and concise, thanks mate for your effort

  • @AdamThomas671
    @AdamThomas671 7 років тому

    You have spared our lives, we are eternally grateful!

  • @Amiro1990
    @Amiro1990 7 років тому

    You dont understand how much you made my life easy with that this is all i wanted to understand im actually writing you it while studying for my exam at this subject also i saw the video about the P , Pi , PID Controllers i found it very helpful hope ill get A , A+

  • @sanjanis7303
    @sanjanis7303 3 роки тому

    U are awesome teacher, In my class madam explained this for 2 hours , Still i did not understand RH as much as listening to 13 min lecture

  • @neelreddy4523
    @neelreddy4523 6 років тому

    I've never commented on a video before, but 3 minutes in, and I realize this is great. Good job Brian!

  • @bethanyfan4492
    @bethanyfan4492 6 років тому +1

    Saved me 10 marks in my exam tonight, thanks

  • @m3pisnik
    @m3pisnik 5 років тому

    Thanks man! I have learned all for my last exam at University just from your channe and get 10!
    Great work, you have my pledge!

  • @atrus3823
    @atrus3823 2 роки тому

    This was an insanely concise and clear explanation.

  • @shellyliu7527
    @shellyliu7527 5 років тому

    Brian you are the SUPERMAN himself!!!

  • @dennissamuel6492
    @dennissamuel6492 5 місяців тому

    Great tip about the pattern and thanks for specifying what you do when you don't have a value for a power!!!

  • @ishvananthan4382
    @ishvananthan4382 Рік тому

    This video was very helpful for me. Was struggling with understanding my textbook examples, your video really helped me out!

  • @dhavalpatel8419
    @dhavalpatel8419 5 років тому

    I could tell you put a lot of time and effort into this video, It helps a lot.
    Good Job!

  • @RahulSharma-kz9lw
    @RahulSharma-kz9lw 7 років тому

    these lecture are awesome, cause in classes we are only do math calculation and match the answers but here we know about the real meaning of control system n how math tool use for simplified the problems.

  • @sebastiandolle2132
    @sebastiandolle2132 6 років тому

    Thanks man! Im studying in Spain right now and as my Spanish is still not perfect these videos help alot. Keep it up.

  • @joypatel1091
    @joypatel1091 4 роки тому

    I’m really ecstatic to watch videos and solve my assignment questions 👍🏻

  • @JohnDiggle21
    @JohnDiggle21 2 роки тому

    I have my exam tomorrow and this video literally taught me what I needed to know so quickly. Now I went from knowing nothing to be able to gain at least a few marks.

  • @rutendok
    @rutendok 11 років тому

    hahaha! my day couldnt be any better without the Routh man!

  • @pnikouee
    @pnikouee 9 років тому

    Brian, your channel and the way you explain things is just excellent!

  • @jsathish1990able
    @jsathish1990able 9 років тому

    So much clarity in thought. Thanks Brian.

  • @mehulgoyal6560
    @mehulgoyal6560 7 років тому

    You nailed it sir. Keep it up. You just saved a subject in current semester

  • @GarethMeierhans
    @GarethMeierhans 7 років тому

    I wish I had money to pay you! Unfortunately my useless university has taken all my money and left me with nothing but confusion. You are such a champ!

  • @tsunghan_yu
    @tsunghan_yu 5 років тому

    That pattern for memorizing the Routh array is ingenious!

  • @masterdare459
    @masterdare459 9 років тому

    This was incredible. Your method of teaching fits brilliantly with how I learn and you were so clear and concise. Thank you!

  • @linnl563
    @linnl563 5 років тому

    Your videos are so great. You managed to teach subjects in a such simple yet effective way. Thank you so much!

  • @dhinas9444
    @dhinas9444 4 роки тому +7

    1:55 ! That was the most beautiful e^(-at) curve EVER! SMOOTH!

  • @0VincentO
    @0VincentO 6 років тому

    Wow, finally some clear explanation on youtube

  • @BillyBob-bo9tn
    @BillyBob-bo9tn 4 роки тому

    Amazing video. You could not have made it any simpler. Wish I found your channel sooner. Would have made my controls class much easier

  • @vijaytimberbhilai9002
    @vijaytimberbhilai9002 11 років тому

    my god u r realy amazing...i never expect the explanation like this from any tutor...u rock.....

  • @rohus_peecee
    @rohus_peecee 7 років тому

    Thanks for your videos. You are way better than my professors.

  • @dogintwater6454
    @dogintwater6454 9 років тому +60

    I'm glad they invented computers and matlab.

  • @nieldewet5315
    @nieldewet5315 8 років тому

    This is so much much better than reading a book. Thanks

  • @gardeniabeauty16
    @gardeniabeauty16 10 років тому

    Fantastic explanation!!
    And i really like how you sped up the writing so that the video moved faster.

  • @TheMoonlight450
    @TheMoonlight450 9 років тому

    Thanks for uploading. I've been having problems on how to get the 4th rows and so on but with the pattern introduced in the video, I now understand. Thank you. 😊😊

  • @toufiq652imam
    @toufiq652imam 10 років тому +4

    Cheers mate, you've explained it amazingly

  • @sandeepgupta007
    @sandeepgupta007 7 років тому

    great video :), watching your video just for 15 minutes can clear any sought of doubt in the topic !

  • @renandebritoleme3097
    @renandebritoleme3097 4 роки тому

    Great class! You are the best teacher that I have seen!

  • @ChrisTheDIYguy
    @ChrisTheDIYguy 10 років тому

    Great video, very clear explanation. Definitely going to be watching more of your videos to get through this Linear Controls class.

  • @NovakTomas
    @NovakTomas 10 років тому

    Hi Brian. Your Lectures are great to fill some gaps in my study (especially when lecturer said to study Routh-Hurwitz Criterion by ourselves at home), but I have to correct you.
    At the beginning (0:40), you say that the roots of characteristic equation are the same as poles of the TF. That is not true, because when you create a TF, you can reduce zeros and poles (eg. in (s-1)/((s-1)(s+2) to 1/(s+2) - stability change!) and then it is NOT the same. They tought us the same at Theory of system but corrected at Automatic controll ;)
    Also a little mistake at 3:30 - I believe you wanted to write "without solving for the roots" :)

  • @KamKausar
    @KamKausar 12 років тому

    Please keep it up, you're saving my degree

  • @eclectic_musafir
    @eclectic_musafir 6 років тому

    Excellent explanation; my Vibrations 1 professor skipped over the Routh Criterion because he said that "it's no longer used in industry, and has been replaced by computers". However, I'm taking Vibrations 2 (an elective course), and the professor in that course assumed that everyone learned this, and now had to modify his lecture to accommodate that fact. This helps with the homework problem... :P

  • @jeevanr1532
    @jeevanr1532 8 років тому

    very interestingly explained while touching the ground basics.The entire list is awsum. More videos please!!

  • @SkyRightBeauty98
    @SkyRightBeauty98 3 роки тому

    hi brian, these video lectures are amazing as I am using them in substitute to my own professors material. I am learning with ease with you!
    If I make one suggestion: I think it would be astoundingly helpful if you post your notes so that they are downloadable for students! I find that there are a lot of details in the notes that are essential and I am a slow notetaker; therefore, if I could download these notes then I could follow along with you at a much more efficient pace! Anywho, thank you!

  • @ChaseBobo2
    @ChaseBobo2 7 років тому

    Great explanation. I have a control systems test coming up and this gave me the confidence I needed lol

  • @koonerd321
    @koonerd321 10 років тому

    i learn more from you than i do from my control systems professor

  • @audreydemafo9332
    @audreydemafo9332 Рік тому

    Awesome thank you Sir. I particularly like your tip for filling up the third and following rows of the table

  • @Ropsch
    @Ropsch 11 років тому

    Routh-Hurwitz-Man made my day!

  • @Alex-wp9oo
    @Alex-wp9oo 5 років тому

    You have no idea how much i love you

  • @keiramytraveldiaries8721
    @keiramytraveldiaries8721 6 років тому

    Absolutely brilliant lectures - I cannot thank you enough

  • @Youtubeguy543
    @Youtubeguy543 3 роки тому

    Leaving a comment for solidarity. This nine year old video is but a hallowed temple, for which each passing engineering student must stop at to reflect upon their travels. Thoughts such as "why the hell didn't I just pay attention in lecture?" and "hot damn, this guy can explain a concept" echo through these timeless halls, set under neon highlighter scribbles which pass like digital winds and carve deep grooves in the minds of sleep deprived undergrads both past and future.

  • @johnbender911
    @johnbender911 10 років тому

    Thank you so much Brian. U really know how to explain this material, even an 8th grader would b able to understand it

  • @Kaihku
    @Kaihku 9 років тому

    thank you! i was falling asleep studying this on the book and not understanding so easily! i go right to next video :)

    • @Kaihku
      @Kaihku 9 років тому

      Update: I've passed the exam of "control of energy plants" and I think it's 70% thank to this videos. In particular I managed to explain to the professor how the Routh criterion works, and probably that made me pass! So thank You more than a lot, Brian!

  • @MrArieu
    @MrArieu 10 років тому +1

    Just, what i was looking for, thank you !! Great video

  • @salsalito21
    @salsalito21 7 років тому

    Short and Sweet explanation. Good job!

  • @eshaninegi4451
    @eshaninegi4451 8 років тому

    hey brian , just watched ur lecture, very helpful, planning to go through the complete series,,thanks, great work done

  • @TheDaftSmiley
    @TheDaftSmiley 12 років тому

    Thank you very much for these videos. Really appreciate the time and effort you put into making them.