DME-II Online Assignment-1


Note : Numerical Data in the problems is generated Randomly. Hence don't Refresh the page till you calculate and submit the answers.
If page is refreshed new data will displayed. In that case again do the calculation and submit.

Student Details

Problem-1


Refer above video tutorial to solve Problem-1

Pb-1
A pair of Helical gears consists of a 24 teeth pinion meshing with a 88 teeth gear. The pinion rotates at 767rpm. The normal pressure angle is 20. while the helix angle is 25. The face width is 72mm and the normal module is 12mm. The pinion as well as gear are made of steel 40C8(Sut=674N/mm2) and heat treated to a surface hardness of 391BHN. Find the Beam Strength and Wear Strength


Enter your answers


Problem-2


Refer above video tutorial to solve Problem-2

Pb-2
3KW power at 988rpm is supplied to the worm shaft. The number of starts for threads of worm are 2 with a 44mm pitch circle diameter. The worm wheel has 35 teeth with a 5mm module. The normal pressure angle is 20. Calculate efficiency of the worm gear drive. (Assume ยต=0.035)



Enter your answer
Designed by Dr. M. Raja Roy, Associate Professor, Mechanical Engg. Dept.