DrDynamics
DrDynamics
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วีดีโอ

2021-09-29 Motion Constraints; Rolling.MP4
มุมมอง 15ปีที่แล้ว
2021-09-29 Motion Constraints; Rolling.MP4
2021-03-11 Gauss Elimination Part I mp4
มุมมอง 6ปีที่แล้ว
2021-03-11 Gauss Elimination Part I mp4
2021-03-08 Diagonal and Triangular Matrices mp4
มุมมอง 2ปีที่แล้ว
2021-03-08 Diagonal and Triangular Matrices mp4
2021-03-05 System Conditioning mp4
มุมมอง 2ปีที่แล้ว
2021-03-05 System Conditioning mp4
2021-03-04 Cramer's Rule mp4
มุมมอง 3ปีที่แล้ว
2021-03-04 Cramer's Rule mp4
2021-03-01 Graphical Methods of Solving Algebraic Equations mp4
ปีที่แล้ว
2021-03-01 Graphical Methods of Solving Algebraic Equations mp4
2021-02-26 Linear Algebraic Equations mp4
มุมมอง 2ปีที่แล้ว
2021-02-26 Linear Algebraic Equations mp4
2021-02-19 Open Methods Newton Raphson mp4
มุมมอง 8ปีที่แล้ว
2021-02-19 Open Methods Newton Raphson mp4
2021-02 -15 Bracketing Methods Bisection mp4
มุมมอง 5ปีที่แล้ว
2021-02 -15 Bracketing Methods Bisection mp4
2021-02-12 Incremental Search mp4
มุมมอง 10ปีที่แล้ว
2021-02-12 Incremental Search mp4
2021-02-04 Modular Programming mp4
มุมมอง 17ปีที่แล้ว
2021-02-04 Modular Programming mp4
2021-01-29 Unknown Iterations, tolerances mp4
มุมมอง 8ปีที่แล้ว
2021-01-29 Unknown Iterations, tolerances mp4
2021-01-15 Multiple Graphs on a Plot
มุมมอง 13ปีที่แล้ว
2021-01-15 Multiple Graphs on a Plot
2021-01-11 Command Window and Workspace Basics
มุมมอง 36ปีที่แล้ว
2021-01-11 Command Window and Workspace Basics
Fixed-Iteration Looping
มุมมอง 74ปีที่แล้ว
Fixed-Iteration Looping
Figure Refinement and 3D Plotting
มุมมอง 1542 ปีที่แล้ว
Figure Refinement and 3D Plotting
Basic Matrix Operations
มุมมอง 1353 ปีที่แล้ว
Basic Matrix Operations
Root Using Graphical Methods and fzero
มุมมอง 3403 ปีที่แล้ว
Root Using Graphical Methods and fzero
Numerical Errors
มุมมอง 3843 ปีที่แล้ว
Numerical Errors
Decisional Programming
มุมมอง 1893 ปีที่แล้ว
Decisional Programming
Two-Dimensional Plotting and Annotations
มุมมอง 3473 ปีที่แล้ว
Two-Dimensional Plotting and Annotations
Creating Custom Functions
มุมมอง 1723 ปีที่แล้ว
Creating Custom Functions
Adressing Numeric Arrays
มุมมอง 1093 ปีที่แล้ว
Adressing Numeric Arrays
Creating Numeric Arrays
มุมมอง 1443 ปีที่แล้ว
Creating Numeric Arrays
Scripting Basics
มุมมอง 1593 ปีที่แล้ว
Scripting Basics
Built-In Functions
มุมมอง 2193 ปีที่แล้ว
Built-In Functions
Particle Dynamics 14.2 - Generalized Angular Momentum Form of Newton’s 2nd Law
มุมมอง 2117 ปีที่แล้ว
Particle Dynamics 14.2 - Generalized Angular Momentum Form of Newton’s 2nd Law
Particle Dynamics 14.1 - Generalized Angular Momentum
มุมมอง 3357 ปีที่แล้ว
Particle Dynamics 14.1 - Generalized Angular Momentum
Particle Dynamics 13.3 - Simple Pendulum EOM using Angular Momentum
มุมมอง 1.2K7 ปีที่แล้ว
Particle Dynamics 13.3 - Simple Pendulum EOM using Angular Momentum

ความคิดเห็น

  • @giack6235
    @giack6235 7 วันที่ผ่านมา

    Hello, thank you so much for the very complete video on mechanics. I have a question: at 26:29, you have written the expression of inertial velocity in terms of versors of the moving frame. I know that this is possible because in the end inertial velocity is just a vector and can be expressed in any base we want but... how is it physically possible? I mean, the moving frame cannot really "see" such a thing as the inertial velocity, so it feels quite impossible to express inertial velocity in terms of moving frame versors, because by the point of view of a moving observer, this vector doesn't exist at all!

  • @اللهماهدني-ق6د
    @اللهماهدني-ق6د 10 หลายเดือนก่อน

    thank you sir i am a nanotech student and this was really helpfull to me for my homework

  • @godfreypigott
    @godfreypigott 11 หลายเดือนก่อน

    7:56 How is the fact that the length of the displacement vector remains constant enough to imply that its components remain constant? Surely this is implied by the fact that you have a reference frame that is fixed relative to the rigid body.

  • @amahleduma7599
    @amahleduma7599 ปีที่แล้ว

    HUGE HELP💯💯👏

  • @mandemskullmail700
    @mandemskullmail700 ปีที่แล้ว

    great💥💥💥

  • @jameyatesmauriat6116
    @jameyatesmauriat6116 2 ปีที่แล้ว

    Thank you, but can it be explained more because I can't understand why some equations are put there sometimes

  • @kaique081000
    @kaique081000 2 ปีที่แล้ว

    Your Particle Dynamics playlist is a life saver. Thanks for videos. They are very helpful

  • @tech_science_tutos4155
    @tech_science_tutos4155 2 ปีที่แล้ว

    Thanks a lot for your lectures. could u please give us a title book for this suject

  • @claytonjansen589
    @claytonjansen589 3 ปีที่แล้ว

    Thank you. Very concise.

  • @squirtlesquirtle94
    @squirtlesquirtle94 3 ปีที่แล้ว

    You didn't "solve" the problem. You didn't solve for the tension force in terms of the state variables, and you didn't state an equation of motion in terms of that solution.

  • @anilaxsus6376
    @anilaxsus6376 3 ปีที่แล้ว

    6:59 at this point of proving the equation i realized that all your unit vectors are b, which are the basis of the body coordinate system, does that mean that the results of transport theory are in the body frame.

  • @anilaxsus6376
    @anilaxsus6376 3 ปีที่แล้ว

    6:43 can the center of rotation or the position of the resulting (resulting after the summation ) axis of rotation be determined ? 8:08 what book ?

  • @erick.gudino
    @erick.gudino 4 ปีที่แล้ว

    Thank you!

  • @ahmedkamiss7643
    @ahmedkamiss7643 4 ปีที่แล้ว

    Thank you Dr Dynamics! This is such a well structured course, it is unfortunate I didn't stumble upon these lectures 5 years ago. I'm taking notes and following along quite happily :) Best wishes and much thanks from Canada!

  • @ahmedkamiss7643
    @ahmedkamiss7643 4 ปีที่แล้ว

    Thank you sir for the complete , thorough and excellent explanation of this topic! I look forward to completing this and your other lectures.

  • @ezekielmuhumuza8194
    @ezekielmuhumuza8194 4 ปีที่แล้ว

    Thanks for this awesome playlist. Will there be any continuation of this series to 3 dimensions?

  • @ezekielmuhumuza8194
    @ezekielmuhumuza8194 4 ปีที่แล้ว

    Thanks for this excellent set of tutorials. Did you by any chance make any more on further topics in the book on dynamics in 3 dimensions?

  • @nihnilv5270
    @nihnilv5270 4 ปีที่แล้ว

    I've been working on a problem for a few hours now - without doubt, this video allowed me to see from a different perspective. Much thanks for this video. Very clear and concise.

  • @thekandyman300
    @thekandyman300 4 ปีที่แล้ว

    This was quite possibly the most unnecessarily complicated explanation for something that should be extremely simple. Idk why it has so many likes

  • @PvpArchers22
    @PvpArchers22 4 ปีที่แล้ว

    Mechanics moet beter les gaan geven.

  • @dibakardutta180
    @dibakardutta180 5 ปีที่แล้ว

    Add infinitum "Thank you". Specially for normalizing the angulur momentum.

  • @bramilan
    @bramilan 5 ปีที่แล้ว

    Thank you, thank you, thank you! I've seen so many videos looking for exactly that. I am enormously thankful. Very well explained.

  • @mollypete4270
    @mollypete4270 5 ปีที่แล้ว

    bro, if you reference an "earlier example" could you perhaps link to said video?

  • @christianxfb
    @christianxfb 6 ปีที่แล้ว

    Free Body Diagram is totally wrong!!, both springs are exerting the force on the mass in the same direction!!!!! - (k1*x1) - (k2*x2) = m*a

  • @sky-slime1059
    @sky-slime1059 6 ปีที่แล้ว

    Thank you!! This is helpful > - <

  • @vipulgholap7059
    @vipulgholap7059 6 ปีที่แล้ว

    Thank you. It helped a lot

  • @bfc3758
    @bfc3758 6 ปีที่แล้ว

    or.. you could factor the r^4/4 and use a more useful identity cos^2(theta)+sin^2(theta)=1 :)

  • @ajpurvis2251
    @ajpurvis2251 6 ปีที่แล้ว

    Why is it that when you take d/dt(e_t) you end up with a positive e_n and not negative?

  • @adip8
    @adip8 7 ปีที่แล้ว

    If these kind of videos had a billion views imagine where our world would be today.

  • @adeshpradhan2026
    @adeshpradhan2026 7 ปีที่แล้ว

    nice

  • @skhindisabesuthu4646
    @skhindisabesuthu4646 7 ปีที่แล้ว

    Thank Mr

  • @roshanshanmughan7218
    @roshanshanmughan7218 7 ปีที่แล้ว

    Beautifully described! Thank you :)

  • @kumararajaeedara2721
    @kumararajaeedara2721 7 ปีที่แล้ว

    @ DrDynamics: Can you please post the final equation. I would like to verify with mine. Also, I would appreciate if you could suggest references on where to find the solution for the nonlinear diff eqn obtained (WITHOUT) any simplifications. Thanks.

  • @drdynamics
    @drdynamics 9 ปีที่แล้ว

    Christophe, this is explained in a screencast from the particle dynamics course that sets up polar frame. Linked here: th-cam.com/video/5ollsV9u5B0/w-d-xo.html For context, it may be helpful to watch the screencasts preceding it (7.1 through 8.1). I'll embed this info in the video itself so that others with this question can track down the info. Thanks for watching! The Transport Equation is one of the best discoveries ever for developing kinematics related to a noninertial reference frame!

  • @thestophewatts6689
    @thestophewatts6689 9 ปีที่แล้ว

    DrDynamics thanks for making this video! It is helpful. However, i'm trying to look for an explanation of how we jump from x * d(i)/dt, to w x r? I'm not sure how the position times the derivative of the unit vector translates into omega_b cross product r_p/o'? You said you proved it in another video of yours? That would be really helpful. Thanks!

  • @drdynamics
    @drdynamics 9 ปีที่แล้ว

    @Oskar, Thanks for the complement. I'm glad people are finding it. This screencast is from the Rigid Body Dynamics course I teach at the University of Denver. Its based on the excellent textbook "Engineering Dynamics: A Comprehensive Introduction" by Kasdin and Paley. www.amazon.com/Engineering-Dynamics-A-Comprehensive-Introduction/dp/0691135371 My class accesses it through another website (EdPuzzle); and it looks like TH-cam doesn't count those views. Feel free to share these screencasts with others you think could use it.

  • @matphimary5473
    @matphimary5473 10 ปีที่แล้ว

    that' s very helpfull. thank you.

  • @hueneutron8640
    @hueneutron8640 10 ปีที่แล้ว

    Hey Dr., at 26:09, does the car slip inwards or outwards? Because in reality, the car should slip outwards, but the acceleration in en is facing inwards!

    • @drdynamics
      @drdynamics 10 ปีที่แล้ว

      It's going to slip outward. However, recall that it will slip because the friction needed to stay on the curve is no longer there. When the car slips, the dynamics change. It is no longer going around the curve, but going in straight line motion and there is no normal acceleration.

  • @309289189
    @309289189 10 ปีที่แล้ว

    at 19:08, maybe the eb = et *en inestead of eb = et*eb

    • @drdynamics
      @drdynamics 10 ปีที่แล้ว

      Yes. The correct expression is: e_b = e_t x e_n

  • @hueneutron8640
    @hueneutron8640 10 ปีที่แล้ว

    Hey Dr, I think that at 30:45, you missed to multiply acceleration with time when finding final velocity!!

  • @309289189
    @309289189 10 ปีที่แล้ว

    At 14:55, there should be underline for vector rp/o(t)