Derivation of Torque Required to Raise the Load - Power Screws - Design of Machine
ฝัง
- เผยแพร่เมื่อ 29 ก.พ. 2016
- Subject - Design of Machine
Video Name - Derivation on Torque required to Raise the Load
Chapter - Power Screws
Faculty - Prof. Zafar Shaikh
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Thanks! It's also important to note than tan phi is equal to mu, and thus we can rewrite the equations in terms of mu. This was a excellent explanation. Thank you sir!
Your videos are very helpful for mechanical students.I have learnt a lot from you which I have not learn from my college also. you are doing a tremendous job for us who belong to a very poor class family.
Thanks a lot Sir . god bless you always🙏🙏🙏
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Very good video. But, if you permit, I would like to make some sugestions. First, you used the same letter for axial force (P) and fillet spacing (P). Second, the thread angle alpha is calculated as z.P, where z is the number of thread entrances. And, finally, you forgot to mention the fillet inclination theta.
wow super sir very easy process I have understand in this derivation part tnq tnq sir
Wonderful video, much, much better explanation than the guy who tried to do it in 10 minutes.
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Good stuff. Nicely done.
Very nice way of derivation awesome explanation
It took me a while to connect Helix to the angle of the threads. This I know, only because I have used the Helix object, in 3Ds Max software. Would have been great if you explained that also, to us, novices. The greater alpha is, the more lift you will get per rotation of the screw, requiring more torque.
nice tutorial sir for the torque equation
Thanks so much for your great work...
Very good explanation thank you sir
Nice video, but if u would have made it shorter (by increasing speed during cal.) it would be better
👍👍👍
good ecplanation
good explination sir
thank you sir....its very useful to me...thank you so much
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But I m exerting force 'P' on the end of the handle not on the circular part. So torque should be T=P×L instead of/P×d/3.pls clarify my doubt.
Nice! Can you make a numerical example using the collar friction? Thanks for the video!
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nice video
sir please do the videos on mechanical measurements and metrology. .
Sir please upload the video torque required to lower the load...
Pls do the videos about pulley system related to velocity ratio and mechanical advantage
I need Welded joints and threaded joints can u plz share videos of that.
Hi man, can you make video about calculating time required to raise and lower load using screw?? How can I calculate the time needed
Could u plss upload video regarding pivot bearings..
nicely explained.
You are most welcome.
you are the best
Nice video, but if u would have made it shorter (by increasing speed during cal.) it would be better.
You're good at it :)
Thank you for your words!
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pls upload types of thread and use
Kindly add some information on design of screw Jack warm gear
Is the torque required to raise the load the torque applied by the operater ?or the torque we get from the power screw
How is Friction considered negative, since, at from 0 degrees, until a certain angle, the friction will be enough to hold the weight/object in place. Hence, even with PcosAlpha=0, mRn will have a value. How then, will PcosAlpha-mRn-wSinAlpha be equal to zero? Will mRn and wSinAlpha cancel each other, if there is no force applied, in other words, if PcosAlpha=0?
Is mRn, here resistance to PcosAlpha, where, if there is no force applied, no resistance cannot exist?
Nice video, but if u would have made it shorter it would be better.
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sir the angle alpha is between......?
sir please screw friction pr based problems ka ek video bnaiye.
Can this applicable for screw jack
In any book can I find this derivation
Tnxx sir
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how youcan take direction of varticle force p in horizontal in fbd
that load is really going into the page.
what if, if we are hosting the load on the screw ???
how to calculate the friction angle 'pi'
Why Uniform wear theory is used to find torque required to overcome collar friction? Can we use Uniform pressure theory?
Sanket Warkhede
Yes if its mentioned in the problem ,if not use uniform wear theory.
Thankyou
Yes u can
@@aaditya3766 thanks for this popup notification 😂😂
After 5 years I don't even remember 0.5% of this 💀 can't believe i was intelligent 5 years ago lol 😭😭😭😁
@@avb34 ooh 😀😅. Btw what you are doing now ? Job?
@@aaditya3766 yes. Process design engineer in an auto industry
Dear sir how to define phi value
How to calculate the outer radius of cup R1 ?
Botamcabearelesnamkee
Not getting main concept. ..how u drew that inclined plane to resolve forcrs
Take a wedge as drawn by sir . Now start wrapping it around the cylinder .You will notice that as you rotate , a helix is formed . On one complete revolution , you have travelled up by lead and around by pi*D(mean) .Therefore you get a wedge with height as lead and base as pi*d(mean) and helix angle alpha .
Load is kept on an inclined plane so it will have two components,one parallel to the plane other perpendicular to the plane similarly for effort.
@kurunandan tu btech kyu kr rha phr??
R1 and R2 refer to collar not the cup
It is easy and but not good explantation with detail manner
P does not indicate pitch it indicates lead....
Hello Frands pai chilo
reduce ur ads 😑😶
Too slow and more adds ...disliking it
Nice video, but if u would have made it shorter (by increasing speed during cal.) it would be better
👍👍👍
Nice video, but if u would have made it shorter (by increasing speed during cal.) it would be better
pls upload types of thread and use
Nice video, but if u would have made it shorter (by increasing speed during cal.) it would be better
👍👍👍
Nice video, but if u would have made it shorter (by increasing speed during cal.) it would be better
👍👍👍
Nice video, but if u would have made it shorter (by increasing speed during cal.) it would be better
👍👍👍
sir, pls one comment only, sir
pls upload types of thread and use
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