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1. ### Engineering How do radial tooth clutches function?

Sure , thos picture is from my syllabus of machine design
2. ### Engineering How do radial tooth clutches function?

Thank you very much this is what I wanted to know!
3. ### Engineering How do radial tooth clutches function?

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?
4. ### Engineering How do radial tooth clutches function?

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...
5. ### Engineering Limiting the torque and safety torque elements

thanks a million! was very rewarding discussing with you!
6. ### Engineering Limiting the torque and safety torque elements

can this be a key slot?

8. ### Engineering Limiting the torque and safety torque elements

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?
9. ### Engineering Limiting the torque and safety torque elements

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...
10. ### Engineering Limiting the torque and safety torque elements

is it a spline? thank you!
11. ### Engineering Limiting the torque and safety torque elements

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...
12. ### Convergence of a series

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
13. ### Convergence of a series

thank you this is what I have done y=x+3 x conveges in 4 then y converges in ]-1,7[ not the answer
14. ### Convergence of a series

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!
15. ### Engineering Representation of a threaded section

thanks a million!
16. ### Engineering Representation of a threaded section

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!
17. ### Engineering Hertz contact problems of three cylinders

just an update! the solution was correct it was the Professor mistake to give wrong numbers Thanks a million guys!
18. ### Engineering Hertz contact problems of three cylinders

@berkeman @jrmichler thanks a million for your time and help!
19. ### Engineering Hertz contact problems of three cylinders

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:
20. ### Engineering Hertz contact problems of three cylinders

thank you for taking time to answer me!
21. ### Engineering Hertz contact problems of three cylinders

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!
22. ### Engineering Hertz contact problems of three cylinders

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 :)
23. ### Engineering Hertz contact problems of three cylinders

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...
24. ### Problem with the positive orientation of a surface (Stokes' theorem)

will keep this in mind thank you :)
25. ### Problem with the positive orientation of a surface (Stokes' theorem)

thanks a million for all of you ! you made the pain easier to bear :)
26. ### Problem with the positive orientation of a surface (Stokes' theorem)

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?
27. ### Problem with the positive orientation of a surface (Stokes' theorem)

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
28. ### Problem with the positive orientation of a surface (Stokes' theorem)

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...
29. ### Engineering Is this moment a bending or a torsion?

I was thinking the same thing after you pointed out to the shear forces! thanks a million!
30. ### Engineering Is this moment a bending or a torsion?

Amazing! clear now, but it´s not torsion right?
31. ### Engineering Is this moment a bending or a torsion?

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...
32. ### Engineering Problem with the reaction forces in the gearbox

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)
33. ### Engineering Problem with the reaction forces in the gearbox

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!
34. ### Engineering Problem with the reaction forces in the gearbox

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...
35. ### Engineering How to calculate the power distribution through this gearbox?

thank you I could solve the issue :)
36. ### Engineering How to calculate the power distribution through this gearbox?

thank you I could solve the issue :)
37. ### Engineering Problem with the reaction forces in the gearbox

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...
38. ### Engineering How to calculate the power distribution through this gearbox?

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
39. ### Engineering How to calculate the power distribution through this gearbox?

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...
40. ### Question about the convergence of a series

I see now, thanks a million for your feedback!
41. ### Question about the convergence of a series

thanks a million!
42. ### Engineering Why are the radial and the axial stress in a rotating thin ring null?

thanks a million!
43. ### Engineering Why are the radial and the axial stress in a rotating thin ring null?

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!
44. ### How to calculate the torsion

thanks a million!
45. ### How to calculate the torsion

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!
46. ### What is the summation of this partial sequence?

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

thank you!
49. ### What is the summation of this partial sequence?

you are right thank you and then? the main problem remain unsolved?
50. ### What is the summation of this partial sequence?

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 !