Assignment #4 Due date: Nov 14th2015 1.You, dear mechanical engineer have to supply gears for the gearbox of a car. The input shaft of the gearbox rotates at 3000rpm and the output is 1200rpm. The car needs an output torque of 150Nm, but your gearbox could only be 75% efficient. One of the gears has 20 teeth with 1.5mm module. Calculate: a.Gear ratio of gearbox b.Power given by the cylinders to the gearbox c.Torque at the input shaft d.Pitch, pitch diameter and addendum of concerned gear 2.A single arm planetary gear system consists of a sun, a ring and 3 planet gears. The sun has 20 teeth but the planets have 30. If the sun is stationary and the arm rotates at 300rpm, how fast are the planets rotating? How fast is the ring rotating?
This is the end of the preview.
access the rest of the document.
As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.
Temple University Fox School of Business ‘17, Course Hero Intern
I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.
University of Pennsylvania ‘17, Course Hero Intern
The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.