Drivelines

Question 1

What is cardin joint

Answer 1

Original name for universal joint

Question 2

Non uniform velocity

Answer 2

Driven shaft turns at a constantly changing speed

Question 3

Driveshafts must perform what 3 basic functions

Answer 3

Strong enough to owithstand torque
Allow shaft to change length
Transmit torque while allowing angle of drive to change

Question 4

Heavier the shaft is the lower the what

Answer 4

Max speed

Question 5

Critical speed

Answer 5

The speed at which centrifugal force causes the shaft to move off its axis. If shaft operates at or above this speed it’ll destroy it

Question 6

Rigid joint driveshafts

Answer 6

Rigidly mounted driveshafts

Question 7

Drivesahft capacity is what

Answer 7

Max torque the shaft can handle

Question 8

Tubes

Answer 8

Made from steel
Can be manufactured diffrent ways

Question 9

Flat steel tubes

Answer 9

Bent insane of tube and seam welded

Question 10

Extrusion

Answer 10

Pierced with die and then tube is created

Question 11

Drawn over mandrel tube

Answer 11

Welded tube drawn over a tube mold consistent wall thickness and smoothness

Question 12

Tube yokes

Answer 12

Pressed onto tube and welded in place

Question 13

End yokes

Answer 13

Splined over put put shafts of trans.

Question 14

3 types of end yoke designs are

Answer 14

Wing type-allows bearing caps to be bolt3d directly to yokes
Full round- allows bearing caps to be retained by snap rings
Half round- uses straps or wings hated caps and ubolts

Question 15

Flange yokes

Answer 15

Two flanges mounted together

Question 16

Coupling shaft (jack shaft)

Answer 16

Short driveshaft used in multiples shaft driveline. When sused yiu nest also use a hanger bearing on non drive end of shaft

Question 17

Universal joint

Answer 17

Four trunnions equally spaced at 90°

Question 18

Non uniform velocity

Answer 18

A shaft driven through an angle will accelerate and decelerate twice per revolution

Question 19

Cancelation

Answer 19

The act of canceling the non uniform velocity in a driveshaft

Question 20

Brinelling

Answer 20

Torque indents bearing surface of trunnion with shape of needle rollers

Question 21

False brinelling

Answer 21

Too small of am angle or no angle at all squeezing out lube between needles and trunnions leading to wear

Question 22

Harmonic vibration

Answer 22

A vibration that occurs at 50% of critical speed