Q3 (a) (b) ( (c) Explain the important features of the following types of gears, in each case giving the relationship(s)

[answerhappygod]

Q3 A B C Explain The Important Features Of The Following Types Of Gears In Each Case Giving The Relationship S 1 (47.78 KiB) Viewed 36 times

Q3 (a) (b) ( (c) Explain the important features of the following types of gears, in each case giving the relationship(s) between the shafts that they accommodate. Additionally, give an advantage and a disadvantage of each type. i. Straight-cut spur gears ii. Helical gears ii. Double helical gears iv. Worm gears [7] Briefly explain the causes of a common type of fatigue failure in a machine element of your choice. [7] A two-stage fixed-ring epicyclic gearbox is required to have an overall reduction ratio of exactly 64:1. The two stages are to be identical, and the sun gears are to have between 16 and 20 teeth. nsun +1 nArm N Sun and, for equispaced planet gears: Nsun + NRing = an integer Number of Planets where ne is the rotation speed of component C, and N. is its number of teeth. Propose suitable numbers of teeth for the sun, ring and planet gears, and specify the maximum number of planet gears that could be accommodated. NRing