Mechanical Engineering: Ch 11: Friction (31 of 47) (Flat) Belt Friction: Deriving the Equation

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  • เผยแพร่เมื่อ 22 ธ.ค. 2024

ความคิดเห็น • 78

  • @ZainKhan-xx6np
    @ZainKhan-xx6np 6 ปีที่แล้ว +13

    sir may GOD bless you with best health. Thank you very much i am having my statics exam day after tomorrow and you just made it so easy. Thank you very much sir.

  • @umer2465
    @umer2465 6 ปีที่แล้ว +24

    4:28 that's a plus

  • @nikhilshahare6241
    @nikhilshahare6241 7 ปีที่แล้ว +27

    A little sign mistake was there when you put value of delta N from second to to eqn first.
    But the explanation is very good!!

  • @integralCalculus
    @integralCalculus ปีที่แล้ว +1

    Loved the rigor you observed to derive the differential equation for T by invoking limits.

    • @MichelvanBiezen
      @MichelvanBiezen  ปีที่แล้ว +1

      Thank you. Glad you found them helpful.

  • @VickysTuition
    @VickysTuition 4 ปีที่แล้ว +5

    Finding a tutorial for this content was hard... Thank you for the video 👍👍

  • @eamonnscholtz6510
    @eamonnscholtz6510 2 หลายเดือนก่อน

    Thank you, this explanation is really helpful!
    I have a silly question - why does the tension increase as the belt moves over the drum? Would the frictional force between the drum and the belt not reduce the tension?

  • @josebertramtelmosojr.3147
    @josebertramtelmosojr.3147 3 ปีที่แล้ว +2

    I am always grateful to you great teacher and Ideal one, god bless you and your family💖♥️💙🐶

  • @tuanphamrmit
    @tuanphamrmit 6 ปีที่แล้ว +4

    could you explain why that angle is delta theta/2?

    • @MichelvanBiezen
      @MichelvanBiezen  6 ปีที่แล้ว +3

      If you rotate the triangle to the right by theta/2 then the left side of the triangle will be vertical, and the angle between T and the horizontal will be zero, and the angle between T + delta T and the horizontal will be theta.

  • @achintyahaldar6626
    @achintyahaldar6626 2 ปีที่แล้ว +2

    I think in line number 3 , sign of T+delT, should be +

  • @superkimchi007
    @superkimchi007 13 วันที่ผ่านมา

    why is the angle delta/2? how to prove this formular

  • @solup7991
    @solup7991 4 ปีที่แล้ว +1

    why is the sum of forces in the x direction 0? Shouldn't it be equal to some dF since the entire string should move in the direction of the bigger T?

    • @mqx133
      @mqx133 ปีที่แล้ว

      rope doesnt have mass

  • @pmj9925
    @pmj9925 12 วันที่ผ่านมา

    very good Mister Michel, that' helped me a lot!

  • @paulproofmath323
    @paulproofmath323 3 ปีที่แล้ว +1

    How did you get theta/2 ?

  • @nayanjadhav4472
    @nayanjadhav4472 6 ปีที่แล้ว +4

    sir please take lecture on cable placed around 3 pipes

  • @alexkaralex3719
    @alexkaralex3719 4 ปีที่แล้ว

    What made you put b growing clockwise

  • @satishyadav894
    @satishyadav894 7 ปีที่แล้ว +3

    Awesome video lecture by Sir

  • @batuhanatc7419
    @batuhanatc7419 7 ปีที่แล้ว +2

    First of all thanks for the lectures :) Youre a life saver. In the video, I think you made a sign mistake when you're making the deltaN substitution. And I have 2 questions.1-) What happened to the integral constant when you take the integral of both sides due to seperable diff eqn? Shouldn't there be a 'c' constant on one side of the equality ? 2-)Should we consider B angle in radians or degrees?

    • @gohan100100
      @gohan100100 6 ปีที่แล้ว +1

      He did make a sign mistake.
      Definite integrals don’t get an
      integration constant.
      All angles are in radians.

    • @batuhanatc7419
      @batuhanatc7419 6 ปีที่แล้ว

      Thanks :)

  • @edsonlima3273
    @edsonlima3273 8 ปีที่แล้ว +1

    Good explanation, but is the pulley drawn motor or moved?

    • @MichelvanBiezen
      @MichelvanBiezen  8 ปีที่แล้ว +1

      The concept of belt friction can be used for pegs and pulleys alike. In this section it will apply mostly to non moving pegs or posts.

    • @edsonlima3273
      @edsonlima3273 8 ปีที่แล้ว

      Michel van Biezen Thanks for answering me. My question is: why does the right side have T + dT, why does dT exist in this system?

    • @MichelvanBiezen
      @MichelvanBiezen  8 ปีที่แล้ว +1

      The tension on one side is greater than the tension on the other side. The difference is dT when the angle subtended is d(theta).

    • @edsonlima3273
      @edsonlima3273 8 ปีที่แล้ว

      Michel van Biezen Thank you for responding, your videos are excellent, they help me a lot!!!

  • @Health_and_Wellness_with_Alex
    @Health_and_Wellness_with_Alex 7 ปีที่แล้ว +1

    Why is the sum of forces set to zero if the tension forces are unbalanced?

    • @Health_and_Wellness_with_Alex
      @Health_and_Wellness_with_Alex 7 ปีที่แล้ว

      Is it because the tension force is slightly off balance so you can say it equals zero?

    • @MichelvanBiezen
      @MichelvanBiezen  7 ปีที่แล้ว

      The difference in the tension is caused by the friction force (which balances out the forces).

    • @NSBeverything
      @NSBeverything 6 ปีที่แล้ว

      because frictional force is one which balances the difference in tension and for no slip condition sum of all forces is put to 0

  • @Nameisyogesh-sh
    @Nameisyogesh-sh 4 ปีที่แล้ว

    Sir tension equals in all points in a single string then T2>T1 ..?
    Explain !

    • @MichelvanBiezen
      @MichelvanBiezen  4 ปีที่แล้ว

      Tension is equal ONLY if there is no friction and the wheels have no mass.

  • @Siege2Sage
    @Siege2Sage 7 ปีที่แล้ว +3

    You are the best. I love you.

  • @KumudRanjan-qq8sp
    @KumudRanjan-qq8sp 9 หลายเดือนก่อน +1

    Sir you are a genius

    • @MichelvanBiezen
      @MichelvanBiezen  9 หลายเดือนก่อน +1

      Far from it, but glad to be able to explain these concepts.

  • @mridultyagi2995
    @mridultyagi2995 2 ปีที่แล้ว +2

    actually it is a question in ie Irodov

    • @MichelvanBiezen
      @MichelvanBiezen  2 ปีที่แล้ว +1

      Irodov has some great and challenging problems.

  • @AJ-et3vf
    @AJ-et3vf ปีที่แล้ว +1

    Awesome video sir! Thank you!

  • @barandizmen4169
    @barandizmen4169 5 ปีที่แล้ว

    Hello,I have a simple quesition that how can I figure out which is bigger?

    • @MichelvanBiezen
      @MichelvanBiezen  5 ปีที่แล้ว +1

      The side where the motor pulls the belt.

    • @barandizmen4169
      @barandizmen4169 5 ปีที่แล้ว

      @@MichelvanBiezen thank you ,and what should I do when question says let's say F that you pull but system doesn't move,in this stuation F is smaller force am I right?

    • @MichelvanBiezen
      @MichelvanBiezen  5 ปีที่แล้ว

      Yes, that means the opposing forces are equal or greater than F

  • @tajinderkumar9019
    @tajinderkumar9019 6 ปีที่แล้ว +4

    sir why didn't you consider the centrifugal force

    • @MichelvanBiezen
      @MichelvanBiezen  6 ปีที่แล้ว +1

      The wheel is fixed at its central axis and rotating about that axis. The difference in the tension of the two belts provides the torque rotating the wheel. The "centrifugal" force here does not play a role in providing the torque.

    • @vijayakumardeebaguntla5534
      @vijayakumardeebaguntla5534 6 ปีที่แล้ว

      Pully is not rotating it is just to start rotate

  • @furkandurdu9615
    @furkandurdu9615 4 ปีที่แล้ว

    sir i want to ask something, we have the same belt on the left and the right side of the differantial roller part, so how can be a force difference between these two, isnt it supposed to be equal on the both sides ? because of the nature of the belts and strings etc. thank you very much...

    • @MichelvanBiezen
      @MichelvanBiezen  4 ปีที่แล้ว +1

      If there was no resistance, no friction, and no moment of inertia on the roller you would be correct. But since part of the energy is transferred to the roller, the tension will be different on both sides.

  • @SuhasbharadwajChintada-kv8so
    @SuhasbharadwajChintada-kv8so 13 วันที่ผ่านมา

    1000th like sir 🎉

  • @connectgfv6775
    @connectgfv6775 4 ปีที่แล้ว

    clarity was very good.

  • @mihaly1027
    @mihaly1027 8 ปีที่แล้ว

    Does this only apply to belts or could it be extended to a rope on a pulley?

    • @MichelvanBiezen
      @MichelvanBiezen  8 ปีที่แล้ว

      Yes, this applies to a rope on a pulley as well. A good example of that is the belt and pulley system of a car (although that is not considered a flat belt). We tend to ignore the difference in tension due to friction on a pulley.

  • @mechanicalengineering2773
    @mechanicalengineering2773 5 ปีที่แล้ว

    Sir please help me..
    My english is not good
    I wanna ask how it can be T+ΔT sir ?

    • @MichelvanBiezen
      @MichelvanBiezen  5 ปีที่แล้ว +1

      When a small amount of extra cable is wrapped around a post (through a small angle) there will be a small amount of extra tension

    • @mechanicalengineering2773
      @mechanicalengineering2773 5 ปีที่แล้ว

      @@MichelvanBiezen so how only right side be T+ΔT While left side is stay T sir ?

    • @MichelvanBiezen
      @MichelvanBiezen  5 ปีที่แล้ว +1

      The tension is not the same on both sides. That is due to the friction between the cable and the post.

    • @mechanicalengineering2773
      @mechanicalengineering2773 5 ปีที่แล้ว

      @@MichelvanBiezen thanks a lot sir.. I am understand now..

  • @nareshjoshi123
    @nareshjoshi123 7 ปีที่แล้ว

    i may have pleasure to know from you that i am spiral paper tube core maker how i can reduce friction between , a solid round mandrill , hectically warped paper strip on , the sliding friction occur between paper strip&round metal mandrill, i may have pleasure to receive your reply, thanking you naresh joshi

  • @kumarsamaksha7207
    @kumarsamaksha7207 6 ปีที่แล้ว +1

    awesome sir

  • @mariovaz4994
    @mariovaz4994 5 ปีที่แล้ว +1

    THANK YOU !!!

  • @12345mmmmas
    @12345mmmmas 4 ปีที่แล้ว

    love u so much💙💙

  • @rafiaumar6087
    @rafiaumar6087 4 ปีที่แล้ว

    Thank u wonderful explanation ....:)

  • @vijayakumardeebaguntla5534
    @vijayakumardeebaguntla5534 6 ปีที่แล้ว +1

    Thank u sir

  • @bckends_
    @bckends_ ปีที่แล้ว +3

    the result may be correct but the derivation is an absolute mathematical heresy

  • @nithin1729s
    @nithin1729s 4 ปีที่แล้ว

    Thanks❤🌹

  • @Greenchecks101
    @Greenchecks101 3 ปีที่แล้ว

    Please don't skip the important parts. Like why do we have to get the limit.

  • @malayamandesh9932
    @malayamandesh9932 7 ปีที่แล้ว +2

    Dj nights nhi bhaiyon in logon ko bulao Institute mein

  • @jmd.malones1597
    @jmd.malones1597 3 ปีที่แล้ว +1

    ❤️

  • @djt6fan
    @djt6fan 7 ปีที่แล้ว

    I don't understand this shit. I think it's time to drop out of STEM.

  • @chibwejonathan8146
    @chibwejonathan8146 4 ปีที่แล้ว +1

    You made a mistake.

  • @phymadori545
    @phymadori545 13 วันที่ผ่านมา

    Clear and cool. Thank you.