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Sure , thos picture is from my syllabus of machine design

Thank you very much this is what I wanted to know!

maybe if the transmitted torque is too high it will generate a radial force big enough to push the gear of output shaft and here we stopped transferring power?

Greetings I have a hard time understanding how the radial tooth clutch function when it stops transferring power . Basically I understand that clutches: 1) transfer power from input shaft to output shaft 3) disengage when the torque transmitted has reached a certain limit ( normally when the...

thanks a million! was very rewarding discussing with you!

can this be a key slot?

so no idea about this strange line?

I´m just guessing here, maybe we need to connect the input shaft to another mechanisam and the spline gives a good way for it?

thank you 5 is the input shaft 1 is the output shaft on 1 there is a friction disk mounted (not repesented) so there is a friction between the friction disk and the friction surface the friction surface is connected to the input shaft through a housing which transfer power. for the the middle...

is it a spline? thank you!

Greetings I need to identify the elements of the following safety cluches: we have three different clutches. I lready identified most of them exept for number 14 Any help would be appreciated ! thank you! 1- output shaft 2-friction surface 3-preloaded spring 4-nut 5- input shaft 6- output...

the exercice ask about the set of convergence and not the radius and as you can see we have y=x+3 y is centred in 0 not x

thank you this is what I have done y=x+3 x conveges in 4 then y converges in ]-1,7[ not the answer

Greetings According to my understanding: if x converges in 4 means that the series converges -1<x+3<7 but the solution says C Any hint? thank you!

thanks a million!

Greetings! I´m trying to solve the following exercice I have done the following drawing for the cross section and I want to know if I need to add a top view or any other additional view? (is the cross section enough) thank you!

just an update! the solution was correct it was the Professor mistake to give wrong numbers Thanks a million guys!

@berkeman @jrmichler thanks a million for your time and help!

Indeed one of the asymptions is the absence of frictions, indeed I'm surprised as you because this is an undergrad course so there shouldn't be any hidden tricks :oldconfused:

thank you for taking time to answer me!

Thank you here it is we have an isoscele triangle as you can see the first side is the some of the R1+R2=48 I got the other side by Pythagore 48^2-25^2=1679 means the side value is 40,97 and then the angle =invers.tangente(25/40,97) =31,38° thank you!

Sorry L and S are equal to 0 , it was for the students so that each one do a different assignment sorry for the confusion :)

Greetings i´m trying to find the Force applied by the upper roller to calculate the contact surface. Here is indeed my solution 2*FR1* cos31,38=F=1500N FR1=878,57N (which is wrong the correct solution says 818,1N) FR1 is the force normal to the surface of contact. any help would highly...

will keep this in mind thank you :)

thanks a million for all of you ! you made the pain easier to bear :)

thank you you said it´s not the case here when I apply the right hand rule on curve1 it goes up down when I apply it to curve 2, is there soemthing I'm missing?

in the case of one simple surface the direction of the path determine the orientation of the surface with the right hand rule, in this case we have two borders if one gives us a surface with an orientation that goes with N and the second with one negative with N I hope you got my point

Greetings the solution is the following which I understand I do understand why the current orientation of the Path is positive regarding to stocks (the surface should remain to the left) but I don´t understand why the current N vector of the surface is positive regarding stockes theorem...

I was thinking the same thing after you pointed out to the shear forces! thanks a million!

Amazing! clear now, but it´s not torsion right?

Greetings! As you could see the moment try to make beam to rotate in the support plane with the wall which mean for me this moment is on the Z direction but the longitudinal axis is the X direction and I know that for a moment to be torsion it needs to be in a longitudinal direction, but the...

I used an online software to calculate the reactions and I got the same results if my initially supposed directions are correct. (ignore the fact that I inverted the bearings here as I´m not calculating forces in the x directions right now)

thanks a million! you mean that my feeybody diagram is wrong? if so this might explain why my results are wrong? Could you tell what are the wrong directions? yes the exercice ask about the the reactions on the the other plane by I can solve them once i fix this first! thanks a million!

thank you! for Ft1 :we started by calculating the torque of the motor Cm =power motor/Wmotor=194,26Nm then Ft1 =Cm/r1 with r1=(z1*m/2) m is the modulus of the gear we got FT1=6167 N. For Ft3: we calculated w6 the velocity of the load 2 with the gears ratio we got w6=18,75 rad/s C6=Power...

thank you I could solve the issue :)

thank you I could solve the issue :)

Greetings, I have tried to find the reactions of the bearings on the Y direction in the intermediate shaft. but I couldn´t find the numerical results of the solutions here is my attempt: in order to find the forces I did the moment equilibruim around the point A and B With FT1 FT2 and...

thank you I already have the solution, I just want to understand the intuition behind it, like for example if it was a circuit would be in parallel or in serie, I undertand know that it´s in serie and that the total power goes to the intermdiate shaft before it´s splited between load1 and load2

Greeting! My problem is to understand the flux of power inside this gearbox for example I can´t understand why the power in load 2 and load 1 are not equal to the power of the motor (suppose 100% efficiency). if this gearbox was an energy circuit (how to know that the energy is transmitted and...

I see now, thanks a million for your feedback!

thanks a million!

thanks a million!

Greetings, while studying the stress in the rotating thing ring and find out the last equation that says I would like to understand why? Thank you!

thanks a million!

Summary:: trying to calculate the torsion but couldn´t understand the solution Greetings I´m trying to understand why the multiplied the Force by a/2 to find the torsion in te point c thank you!

Indeed, my instructor said he can asked it in the exam, so I tried to solved it, :)

thank you!

you are right thank you and then? the main problem remain unsolved?

Greetings! I want to caluculate the summation of this following serie I started by removing the 4 by and then and I thought of the taylor expansion of Log(1-x)=-∑xn/n but as the 2 is not inside (-1,1) I couldn´t use it any hint? thank you! Best !