MIT 2.003SC Engineering Dynamics, Fall 2011 View the complete course: ocw.mit.edu/2-003SCF11 Instructor: J. Kim Vandiver License: Creative Commons BY-NC-SA More information at ocw.mit.edu/terms More courses at ocw.mit.edu
Angela Hall God is required dear. Where the hell this complicated brain machine has come from? From nowhere if sorry you need to revisit your common sense.
What a great professor.......he uses examples to show natural frequencies of various objects and then mathematically explains it. Vibration expertise is very important to Engineering but is very difficult to learn. You must do many problems before it "clicks".
I really needed this. I'm taking structural dynamics this semester and the first lecture I received was a 3hr class that lecturer didn't stand up once to explain anything. He sat through the whole class and read from his slides. Thank you for this
Just stumbled on this while working on a dynamic balancer. I hadn't seen this good of a simple derivation of spring, mass, dashpot in years. It flowed nicely like an old song and warmed the cockles of my heart. Stu Fields BSEE
When I was in college, my lecturer missed dynamic part. It is very important and hence useful topic for practice engineers alongside with Fourier transform. Excellent lecture ! I am learning this part.
Professor Vandiver, thank you for an incredible lecture on the Introduction to Mechanical Vibration. Mechanical Vibration is a very important third year class for Mechanical Engineering students. All students majoring in Mechanical Engineering should master these concepts before taking Mechanical Vibrations.
That is the better way to explain all Mechanical Vibration basics I've never seen. Fine, such a fantastic Lecture! Isn't it? Right now, seeking the complete course...
I am currently studying a mechanical engineering course in the uk and this video saved me on my CW when it comes to damped vibration and the experimental data analysation. amazing video keep doing what you love
I agree with Dr. Vandiver up to a point. The kinetic vibration from a K1 and K2 facilitated solution has to be met with proper centrifugal force applied properly. I am excited with the new development of Euler's Formula to prove true kinetic energy displacement. MIT has allowed me to broaden Euler's Formula and has allowed me to truly invent the way kinetic motion through displacement exists. This will actually be covered in my theses. 7.5 years at MIT and I am finally starting to visualize the light at the end of the tunnel.
After seeing the quality of the instruction in these courses I understand why it means something different to go to these schools - compared to my 100% acceptance local engineering university... for a professor to exhibit this level of organization, eloquence, and lucidity is truly something special... would be fantasy at ATU...
In reality there’s only one way mechanical vibration works. Sadly if you were taught otherwise it was just incorrect. Some people are better at explaining to the masses than others but the solutions should be exactly the same.
@williambradley835 Yes, I mean that the quality of this explanation is much higher than any that I ever received at my university. Of course, the engineering is the same, but instead of learning it from lectures we mostly had to teach ourselves!
Some of the greatest examples of vibration that people can relate to are tires out of balance and spinning washing machines out of balance..... Your shocks or struts in your car are dampers that absorb forcing functions such as potholes or seams on the freeway and hopefully keep you away from the natural frequency.
Damn...it's been like 20 minutes into the video and I'm completely lost but surely entertained. I am a mechanical drafter but I'm considering going back to school for mechanical engineering and this is like Chinese to me lol. The hardest level of math I completed was trig and algebra 3. I thank this man for sharing his knowledge, so awesome :)
Jesus Carrillo that is probably why you can't get it. Iam currently coursing mechanical engineering and this subject belongs to my sixth term. Of course you don't get it, hahaha.
Having problems with vibration. Comes from downstairs a apartment below me. I dont know how or why and my manager of the apartment can't help unless I can prove my point. So I am interested in any thing have to with vibration and how its cause and why someone use it and how they can make vibrates/Vibrations upstairs. HELP PLEASE
please solve this Mcqs Thank you. 1) All vibrating bodies have following Degree of Freedom: a)1 b)2 c)3 d)4 . 2) The frequency of vibrations with increase of damping in the case of free vibrations with coulomb damping will A.Remain the same B.Increase C.Decrease D.May increase or decrease depending upon the damping coefficient
physical intuition of damping ratio (i.e. less the damping ratio doesnot mean it will vibrate for more time, it's actually take more number of cycles to decay the vibration amplitude) is lit
Why'd he use a dice? There are no dice.... e{a}/t=hv. A 5th above is a 4th below. So... can I put a KK2 controller board right next to the motor if I balance my prop with the motor? That's what I need to know before the operation..... Mass spring dashpot... I'll try to remember that term. Sounds important;-)
How could I obtain the relevant acceleration by taking into account the Fourier transform? Because if you use the Simple Harmonic Motion, acceleration will always increase as frequency increases. In reality, structures are affected by certain frequency. So, how can I consider both the peak acceleration and the frequency in which my structure will have resonance effects?
I am really grateful for this content. It allows me to learn so much. Thanks you so much, MIT. I really appreciate it. I believe there's a "issue" in one of the equations. When the professor analyses the value of s for values of etha bigger than 1. I believe he misses a factor of w in the second term of s. 47:33
at 1:02:09 added mass is not the correct reason for that because gravity works independent of mass.specially in case of simple harmonic motion. it may be resistance offered by water that is may be drag force. i think so
Wow I can't find a video now thay I can't find on sysmic vibrations and in hand with mechanical vibration but I'd like to hear your side on the matter I please sir
Why aren't there lectures for 2.004, Dynamics & Control II, MIT OCW? So many course on OCW for Mechanical Engineering lack lectures...many courses lack lectures. Wish it would get filled up.
The main reason is money. MIT contributes 1M+ every year to MIT OpenCourseWare. Even with that funding, we are only able to record a limited number of full courses each year (~12 courses). We try and prioritize which courses we can publish by a number of factors. Unfortunately, 2.004 has not made the video lists. Maybe sometime in the future we will get funding and time to recording 2.004. We do have materials for 2.004, just not videos: ocw.mit.edu/courses/mechanical-engineering/2-004-dynamics-and-control-ii-spring-2008/. Best wishes on your studies!
cuz in a static analysis there is no motion, therefore no velocity and no acceleration so both x double dot and x dot are zero. which means (k1+k1)xs=l/2(k1-k2)
@@damianblandi4294 When ignoring the dynamic forces, (k1+k2)xs=l/2(k1-k2), which means when plugged back into the equation involving dynamic forces, you can cancel like terms. Think of "(k1+k2)xs" and "l/2(k1-k2)" in terms of a variable "x". if you were to rewrite the equation in terms of this new variable "x", you could subtract x from both sides and cancel them out resulting in cero.
Same here, I am in 9th and im soo confused and I want to become an engineer but this scares me! Makes me doubt whether I want to do it coz I was just blank
@@cult4037 Bro, you’re only in 9th grade chill out. You’ll be fine, don’t stress about this. This is an MIT lecture. Just keep your grades high and take the hardest level math and science courses available at your school. Pass those. If you enjoy the pain by then, you’ll be a great engineer.
How can you hold the professor up to impossible high standards? He makes a small mistake and you think it is unacceptable? You may want to change your attitude and accept everyone makes mistakes no matter who they are.
