Lecture 20 on Mechanical Vibrations/Structural Dynamics-AM

[@simonlugwisha4327]

such an amazing breakdown of the concept

[@slnkrc08]

Thank you so so much. Finally I understand the concept :))

[@mustafaalmayali5347]

Thank you professor
I think that the response of constant load must be :
U(t)= F./k (cos wn t - 1 )
Because the integration of sin is (- cos)

[@mohammadnoori7787]

The natural frequency does not change, however the frequency of the damped system is a function of damping ratio. Wd=sqrt(1-zeta^2)*wn where wS is the frequent the damped system, which mistakenly sometimes is referred to as damped natural frequency, zeta is the damping ratio and an is the natural frequency.

[@davidestig5662]

Thanks professor for sharing this lecture!

[@eleampere]

Thank you professor

[@channelUCAprGak8H5]

thank you so much for sharing to us this lesson we need it so much .. thanks

[@beoptimistic5853]

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[@RD-tg9xx]

Consider the undamped natural frequency of a single-degree-of-freedom linear
spring-mass system. If energy dissipation is added to this system, explain whether the fre-
quency of damped vibration will differ from the undamped one, and if so, in what manner?

[@engsameeralotaibi6925]

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[@beoptimistic5853]

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[@maksat5061]

Professor I will ask you something. Where can I find examples for Duhamel Integral? thanks...

[@mohammadnoori7787]

Please send me an email: [e-mail] and I will send you a table of common Duhamel Integrals that I have developed.

[@assiamerabet3555]

Thank you sir

[@abusalisheik6681]

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[@beoptimistic5853]

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[@mohammadnoori7787]

I do have a course in How To Write An Effective Research Paper on Udemy.com. It has been taken by over 5,000 people around the world. Please see www.udemy.com/course/how-to-write-a-research-paper/