Understanding Degrees of Freedom

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Lesics

Lesics

Күн бұрын

Concept of DoF is well explained in this video lecture with help of animation of mechanisms. This video covers topic of higher pair, lower pair and mobility equation. Degrees of freedom of 4 bar linkage, cam and follower mechanism and 5 bar linkage are worked out here.

Пікірлер: 95
@renuprakash9995
@renuprakash9995 8 жыл бұрын
NOW I HAVE THE CONFIDENCE TO FACE THEORY OF MACHINES. YOUR EFFORT HAS MADE SO MUCH CHANGES IN MANY OF OUR MINDS. THANK YOU SOOOOO MUCH.
@andjelatatarovic8309
@andjelatatarovic8309 8 жыл бұрын
everything makes so much more sense to me now! thanks!
@Ahsan17687
@Ahsan17687 5 жыл бұрын
U hav more videos?
@themusicalhayes
@themusicalhayes 3 жыл бұрын
This channel is pretty good at explaining things. I really feel that if the channel owner were to hire a voice actor to narrate the video scripts, this channel would really flourish!
@pedropaisbarroso
@pedropaisbarroso 6 жыл бұрын
03:45 you said 3 Lp but did the equation correctly. You helped me to understand it! Thanks
@aking5469
@aking5469 5 жыл бұрын
mastered it with this one video! Thanks!
@prajaktapagar4119
@prajaktapagar4119 6 жыл бұрын
Thanks sir. The video have cleared my concepts
@akilarajapaksha1332
@akilarajapaksha1332 4 жыл бұрын
It's just a five minute video.. But i learnt so much from this video that i couldn't understand by self-studying for several hours... So, Thank you, who ever uploaded this video😍😍😍😍.... The voice was not a problem for me 😃
@fjskfjdkdksofk
@fjskfjdkdksofk 9 жыл бұрын
thank you for damn good instruction
@siddharthprakash8942
@siddharthprakash8942 7 жыл бұрын
Brilliantly explained!!!
@That1NissanGuy
@That1NissanGuy 11 жыл бұрын
my only complaint is, use a real person instead of microsoft bob
@Dr.Kraig_Ren
@Dr.Kraig_Ren 2 жыл бұрын
I guess it's accent problem. Better to listen good video from Bob than from an Indian Tutor lol.
@ganishk3568
@ganishk3568 2 жыл бұрын
@@Dr.Kraig_Ren 🤭🥲🤣
@MastarCheef1337
@MastarCheef1337 7 жыл бұрын
Digibro sent me here. Good video man it really helped.
@krshnakmt3490
@krshnakmt3490 5 жыл бұрын
i couldnt understand why only rotational degree of freedom in a plane ... visualizing it makes it more understandable. great work!!
@lathikawathsara2649
@lathikawathsara2649 4 жыл бұрын
It's really very helpful. Thank you ✌️
@tranducthien1987
@tranducthien1987 4 жыл бұрын
Thank you very much. It is very useful.
@albertduplantin
@albertduplantin 8 жыл бұрын
Good morning by france, very beautiful and interresting, do you make kinematic diagrams ? Your accent is good for french people. Thanks
@ashutoshmaheshwari1714
@ashutoshmaheshwari1714 6 жыл бұрын
how easily you explained mate...thanks
@vishalshah331
@vishalshah331 6 жыл бұрын
Thank you sir... For this video
@nirvanabuddhism5491
@nirvanabuddhism5491 6 жыл бұрын
thnk u for the video, it is really helpful
@subhranildas5077
@subhranildas5077 7 жыл бұрын
I have read the lowest no of links required to form a mechanism is 4, but here we can see a 3 link mechanism, can somebody explain?
@sumanthraogs
@sumanthraogs 7 жыл бұрын
hello I am trying to find solution for packing of incense sticks , I need a solution to make a batch of 1000 sticks kind request as share information if you have any
@alexbourlis
@alexbourlis 5 жыл бұрын
i founf 4 DOF ( 6(3-1)-5-3-1 = 4 , -1 being for the Ball-ground contact, -3 for the the arm rotating into the ground, -5 for the pair between the two arms) for the 3D exemple at the end, is it right?
@lorenzoparrabbi5055
@lorenzoparrabbi5055 Жыл бұрын
What's the name of the structure on the left at the beginning of the video?
@tomriddle4038
@tomriddle4038 5 жыл бұрын
That's some quality content.. keep up the work..
@flxmeyt8962
@flxmeyt8962 Жыл бұрын
THANK YOU SIR!!!!
@emreyilmaz9384
@emreyilmaz9384 3 жыл бұрын
1:40 why would each link would have three degrees of freedom if they were not connected? If they were not connected they could rotate around the vertical axis and translate along the horizontal axis, what is the third one?
@akifa9635
@akifa9635 7 жыл бұрын
for the third example, why is there 5 lower pairs? Why shouldn't it be higher pair?
@zehrakiraz6805
@zehrakiraz6805 5 жыл бұрын
finally can find a playlist without accent
@2creativesisters266
@2creativesisters266 2 жыл бұрын
4:11 how is the slider link 5 a lower pair? it has surface contact why then? could someone elaborate
@xerenityapexlegends3940
@xerenityapexlegends3940 2 жыл бұрын
2:40 to nitpick, the animation implies 2DOF as it is a cylinder joint that can rotate and still has space to slide along the rod
@Troynjk
@Troynjk Жыл бұрын
How many degrees of freedom an object can have at the same time? For example, a sphere is spinning clockwise and moving forward at the same time, i.e. it’s using 2 out of 6 degrees of freedom, can it have more?
@krishnavardhanchary509
@krishnavardhanchary509 7 жыл бұрын
can you please upload about gyroscopes plz?
@mehran1384
@mehran1384 3 жыл бұрын
Thank you for the great video. Just a small correction: DOF is the MINIMUM number of INDEPENDENT variables dad describes the position of every point in the system.
@pauls5745
@pauls5745 3 жыл бұрын
more recent clarification for advanced students! - a rigid body can also have an additional DOF in that temperature or pressure can deform it's alignment or dimensions, so in some cases it can 7 DOF. we must take in to account it's environment which may without translation or rotation, incorporate any various twisting deformation in 3 planes
@atharrumanabdulkalam4892
@atharrumanabdulkalam4892 5 жыл бұрын
Thank you this vedio is helpful
@alexmorsy4908
@alexmorsy4908 3 жыл бұрын
vedio
@pratikbose4399
@pratikbose4399 7 жыл бұрын
Thank you very much for such an wonderful video....I have a doubt....We all know that superstructure has a negative degree of freedom....But could you please tell me the physical significance of the same or site an example??????
@simhishh
@simhishh 7 жыл бұрын
what kind of significance brother the more the increase in negativity the more the blockage to its motion , thats why almost all the airports have curved structure with pillars having -80 degree of freedom.
@Jay_Verma
@Jay_Verma 7 жыл бұрын
did you use TTS for voice?
@Addy94T
@Addy94T 7 жыл бұрын
I was wondering about the same.
@haimanotamare6178
@haimanotamare6178 7 жыл бұрын
it is agreat explanation
@elearn2957
@elearn2957 5 жыл бұрын
Number of degrees of freedom of two particles connected by a rigid rod moving freely in plane_____________?
@zakirshah5060
@zakirshah5060 6 жыл бұрын
superb
@krishnavardhanchary509
@krishnavardhanchary509 7 жыл бұрын
make a video on gyroscope plz
@buttiraviteja5351
@buttiraviteja5351 2 жыл бұрын
In slider crank mechanism, one crank angle is sufficient to define the position. So DOF of slider crank is one.
@peter_castle
@peter_castle 10 жыл бұрын
This video was very nice i did know about DOF but i didn't know there was that fantastic equation
@belol69
@belol69 7 жыл бұрын
Peter Castle it's degree of freedom
@vimlendukumar3200
@vimlendukumar3200 9 жыл бұрын
Good and beautiful.very useful.
@Nayan133
@Nayan133 2 жыл бұрын
Plz make a video on how to calculate DOF for 3D space mechanisms.....
@pukkhandeviprajapati498
@pukkhandeviprajapati498 5 жыл бұрын
Thanks
@tithimazumder6138
@tithimazumder6138 2 жыл бұрын
I couldn't get the 3rd no. what is the physical meaning, as we can see the wheel can rotate in a rotatory axis. On the other hand, the body is moving towards the z-axis. we have found 2 degrees of freedom, but the calculation is saying there is 1. What's wrong am I doing? But the video was tremendous, the level of thinking of the creator is beyond the expectation.
@weitian1504
@weitian1504 5 жыл бұрын
good!
@SantaWithGuns
@SantaWithGuns 7 жыл бұрын
Is it really hard to find a microphone to talk into this day and age?
@iracingtf5051
@iracingtf5051 5 жыл бұрын
Its a translator voice...
@pankajgupta9884
@pankajgupta9884 4 жыл бұрын
Please make more video of TOM
@thewakakeboarder
@thewakakeboarder 9 жыл бұрын
@3:46 should say 4 links AND 4 LOWER PAIRS
@user-jz7dd5oz6k
@user-jz7dd5oz6k 9 жыл бұрын
I have a question..... if one rigid bar in space(3D) with one end fix than how many degree of freedom
@arunm9859
@arunm9859 8 жыл бұрын
+hiren kachhadiya it's zero , because you fixed the bar. so it cannot be moved. you have constrained all the dof of the bar by fixng one end.
@krzemian
@krzemian 8 жыл бұрын
+Arun M unless by fixed he means fixed in position but able to rotate (like the base of a crane), then it's 2 DOF
@arunm9859
@arunm9859 8 жыл бұрын
There are two cases.. one you can fix one end. Which means no degree of freedom is permitted. Or you can pin one end. In that case it will be having rotational degre of fredom
@whatruwaiting4859
@whatruwaiting4859 5 жыл бұрын
yes 3:44 he is saying 4 3
@saranias9957
@saranias9957 6 жыл бұрын
Define static force analysis
@sunilkumarkushwaha7557
@sunilkumarkushwaha7557 7 жыл бұрын
gear of defnition
@stephenalcaide1778
@stephenalcaide1778 3 жыл бұрын
Whoah!!! I walked into the wrong room. lol
@BrokenHeart-nw5fu
@BrokenHeart-nw5fu 7 жыл бұрын
i didn't understand why he has taken in equation 2lowerpair and 1 higherpair i.e in 3(N-1)-2Lp-Hp
@ShauriePvs
@ShauriePvs 7 жыл бұрын
2lp doesn't mean 2 lower pairs...'lp' represents no. of lower pairs and '2' represents that it restricts 2 degrees of freedom
@BrokenHeart-nw5fu
@BrokenHeart-nw5fu 7 жыл бұрын
Shaurie Pvs thanks and why there is 3(N-1) why can't be like 3(N-1)/3(N-3)or only (N-1)
@subhranildas5077
@subhranildas5077 7 жыл бұрын
I have read the lowest no of links required to form a mechanism is 4, but here we can see a 3 link mechanism, can somebody explain?
@ylaronedo8540
@ylaronedo8540 6 жыл бұрын
That is a requirement to applie grashof law (s+l p + q) you would need for bars
@ylaronedo8540
@ylaronedo8540 6 жыл бұрын
*four
@oghk2000
@oghk2000 11 жыл бұрын
And just what is the next video?
@dougedmunds
@dougedmunds 11 ай бұрын
It's the voice of Paul bot
@snake1625b
@snake1625b 3 жыл бұрын
It's this similar to the statistics population
@mehdirostaee2828
@mehdirostaee2828 5 жыл бұрын
in last animation i think DoF is one because all of another variables depend on rotation of first variable if the first variable rotate another variables should rotate so they are limited! who can help me understand the concept without formula thanks.
@mehdirostaee2828
@mehdirostaee2828 5 жыл бұрын
maybe Middle triangle doesnt depend on first joint so its depend on what? in last animation!
@Angi4851
@Angi4851 3 жыл бұрын
Wow
@TheStrelok7
@TheStrelok7 3 жыл бұрын
in 4:12 i think its 4 LP and 1 HP
@MolotovWithLux
@MolotovWithLux 4 жыл бұрын
#accesstoenergy
@user-dj5zc8xp4g
@user-dj5zc8xp4g 5 жыл бұрын
No subtitles
@edwineduardohernandeznunez5102
@edwineduardohernandeznunez5102 5 жыл бұрын
wow
@akhil999in
@akhil999in Жыл бұрын
would be much better if the geometry is accompanied by mathematical expressions and derivations. figures give only an impression, do not give a feeling of proof.
@beniajisubekti6515
@beniajisubekti6515 2 жыл бұрын
I don't understand
@rishikracha8213
@rishikracha8213 5 жыл бұрын
Pink sheep!!
@BrettRyder
@BrettRyder 5 жыл бұрын
*E*
@miholju
@miholju 4 жыл бұрын
Robot voice
@pankajgupta9884
@pankajgupta9884 4 жыл бұрын
Make video in hindi
@krishanudebnath1959
@krishanudebnath1959 3 жыл бұрын
This man is totally confusing things and dictating things the individual bodies must have 6 degree of freedom how is he telling that it has 3 dof
@scientium8770
@scientium8770 11 ай бұрын
I sincerely recommend everyone to not learn anything from this video. Believe me, the information provided is skewed and misses out on many things. Read a book; the information is much clearer in a book.
@edgewaterz
@edgewaterz 5 жыл бұрын
Great video. Horrible voice. Please let go of the computerized voices...
@zameelvisharathodi7859
@zameelvisharathodi7859 4 жыл бұрын
Thanks
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