MATLAB's ode45 Solver - Single Degree-of-Freedom Oscillator

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MATLAB's ode45 Solver - Single Degree-of-Freedom Oscillator

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Jousef Murad | Deep Dive

Күн бұрын

Пікірлер: 49

@JousefM 4 жыл бұрын

Here you can find all the code: github.com/jousefm/ModelingAndSimulation - let me know if this video helped you and what application you are solving with ode45! 🎓 My Science Courses - courses.jousefmurad.com/ ✍️ Latest blog posts: jousefmurad.com 📥 My Newsletter - jousef.substack.com/

@sriti_hikari 4 жыл бұрын

Good.

@zenianggara4958 3 жыл бұрын

thanks

@zenianggara4958 3 жыл бұрын

sorry, function "[T,Y] = ode45(@StateSpaceForm, Time, IC, SolverOptions, m, d, c, f);" is not working. why ?

@JousefM 3 жыл бұрын

Is your function even called StateSpaceForm? Also name the file for the function the same!

@zenianggara4958 3 жыл бұрын

@@JousefM no. name function is ode45.

@brianconway9085 2 жыл бұрын

Great stuff, please do a quarter car and half car model. it would be amazing to find out using an if statement can you for loop and find the correct damping for a critically damped system.

@zofiaorlowski5451 3 жыл бұрын

This video and the blog post instructions were so helpful and insightful. Thank you for making them!

@JousefM 3 жыл бұрын

Thank you so much!!

@ThijsNL1 3 жыл бұрын

Thanks for the video, first time I managed to create such a thing in Matlab. But how can I create a sine wave as force input, so that f=sin(t) for example?

@MachineLearningwithPhil 4 жыл бұрын

Channel's blowing up! Congrats man. You posting these to reddit?

@JousefM 4 жыл бұрын

Thanks mate! Yes I do but the potential of being banned is quite high, got banned in 2 subreddits. If I were you I would give it a try in the ML/DL/RL subreddits. I will give a shoutout to your channel once I have the time to create a beginner‘s guide to machine learning/RL! Or you create one beforehand yourself 🙂😉

@vargalaszlo1989 2 жыл бұрын

Weekly Regelungstechnik practice when the entire class was shaking with fear

@JousefM 2 жыл бұрын

I feel you 😄

@simranjeetsinghdhillon6571 3 жыл бұрын

How can I plot for acceleration vs time

@techlead3743 4 жыл бұрын

Nice!

@luizfelipecarvalho1469 4 жыл бұрын

Nice work! I Wonder if it is possible to use external forces changing in time, but randomly like in time series? e.g. F(t) = [10 3 -10...]

@andreitanasache5019 3 жыл бұрын

Niceee, how can i extrapolate the last value of ode45? like as y(end,1) ??? thanks

@shanmukharao1683 3 жыл бұрын

thanku very much for your videos , if mass matrix is having 2x2 size, how can apply this code?? can u pls explain this

@JousefM 3 жыл бұрын

Just give it a try with 2x2 and see what error it throws. Always use the workspace to see what dimensions you’re working with and if these even make sense. „Debugging“ using the workspace is very helpful sometimes.

@shanmukharao1683 3 жыл бұрын

@@JousefM thanku sir, i will try this

@pabloalmagro5181 4 жыл бұрын

Nice work!!! In the case of a harmonic displacement for the same mass-spring-damper SDOF model where the goal would be to find the generated force due to the harmonic displacement. Do you have some recommendations to carry out such a case?

@JousefM 4 жыл бұрын

Does that help? www.mathworks.com/help/symbolic/examples/physics-damped-harmonic-oscillator.html :)

@luizfelipecarvalho1469 4 жыл бұрын

@@JousefM Nice work!! I Wonder if it is possible to have an force varying in time (time series, not described for a fubction). Is it possible? How would it be in code?

@OatCmor 3 жыл бұрын

Hi. Thanks for your video. However, I visited your website "engineered mind". It says Page is under construction - great stuff coming soon!. When will it be back online?

@JousefM 3 жыл бұрын

Hey and thanks for asking :) will slowly build it in the coming weeks and make it more „bloggy“ to educate more and make it more user friendly. Stay tuned!

@philippebergna5783 4 жыл бұрын

I have a similar question to this one, however, I need to find the force (force * acceleration), so I need to find the acceleration of the mass, how would I be able to do it?

@JousefM 4 жыл бұрын

You can plot and calculate the acceleration as shown in the video. If you only have the velocity take the derivative

@veereshguruguntla5204 4 жыл бұрын

hi i also want to draw acceleration vs time and R.M.S acceleration and frequency plots ..can you help me out

@shanmukharao1683 3 жыл бұрын

Hai sir, video is really good.... ca u pls explain how to solve for 2-DOF systems with damped forced vibrations.... thanks in advance

@JousefM 3 жыл бұрын

Maybe in the future! Stay tuned :)

@shanmukharao1683 3 жыл бұрын

@@JousefM Thanks for your response sir, if u do within a few days really is helpful for me... thanks in advance

@nikamirfirdaus2516 3 жыл бұрын

Hi, thanks for this video! Can you do a system with 2 masses? I would really appreciate it!

@JousefM 3 жыл бұрын

Thanks for your comment! Sure, I can :) currently working on something else but feel free to subscribe and activate the notification bell to stay up-to-date with the latest uploads Nik!

@kid-vf4lu 3 жыл бұрын

Is ODE45 a runge kutta method? I know that it is adaptive, so it's not the standard runge kutta 4th

@JousefM 3 жыл бұрын

Yes, this is Runge-Kutta!

@malikzeeshanawan3542 4 жыл бұрын

why did you not include the weight (mg) in your diff. eq. ? Kindly tell

@JousefM 4 жыл бұрын

Hey Malik! The mass was included as the small parameter m but not gravity as you might have seen. But you could include it of course - the equation would look slightly different :)

@malikzeeshanawan3542 4 жыл бұрын

@@JousefM thank you

@olakappassov6788 3 жыл бұрын

hi. where did u take initial conditions?

@JousefM 3 жыл бұрын

Initial Conditions are indicated by „IC“ in the Video - Hope That helps! :)

@shanmukharao1683 3 жыл бұрын

kindly do 2-dof...soon sir...it will be helpfull

@JousefM 3 жыл бұрын

Working on it at the moment, should hopefully be done soon.

@MS-ld3jn 4 жыл бұрын

Hey man thanks for the video! Also, would you know how to plot the force transmissibility of the 1 DOF system on matlab? Thanks.

@JousefM 4 жыл бұрын

You're welcome! This should help: vortarus.com/creating-a-vibration-transmissibility-plot/ - the formulas are straightforward, simply put them into MATLAB and let it do the job, :)

@MS-ld3jn 4 жыл бұрын

@@JousefM Thanks so much but I tried plotting damped force transmissibility but it didn't work :-{. But I think i found a solution from a textbook I found. Thanks anyways!