Mechanical Vibration: MDOF Deriving Equations of Motion (A Quick Way)

[@mickaelngn5047]

Very good video , could you make more of it pls 🎉

[@thorstenstraub3657]

What is the sign convention? When is a term xa*kb counted positive, when negative? For example, when m1 moves in direction x1 it stretches k1 and compresses k2 but both x1k1 and x1k2 are counted positive.

[@boshontobihar]

I have been looking for your next video, but haven't found it yet. Please let me know if you've uploaded it, or plan to upload it soon. I need to know how to find the natural frequencies from equations of motion.

[@AzmaPutra-channel]

Will do!

[@shyamantabhuyan2927]

Thanks from India

[@doorkicker1896]

please upload the next step for eigenvenctor mode shapes untill finish

[@magn8195]

Is k3 not considered in the equation of motion for m1 because k3 compresses?

[@AzmaPutra-channel]

k3 is not attached to m1. Basically, all forces acting on mass are from the element attach to it.

[@shanemoyo2233]

i cant find the next video

[@Luboi-1]

A free body diagram analysis of each mass would have been a lot easier to understand

[@VimalGaurav]

kzbin.info/www/bejne/mqS6eauBadKGjbs

[@AzmaPutra-channel]

Hi Vimal. Thanks. You have shared a great video. That would be my video as well apart from this one. That is why I put 'A Quick way' in the title. The one explaining the free body diagram should be a more appropriate one to explain the physics. But still can't find time to put my voice-over on my video:)

[@tobyhughes7938]

How to rearrange these motion equations?

[@AzmaPutra-channel]

Just follow the steps in the video. You will have two equations of motion.

[@Est.1993]

Thank you