Rack & Pinion

Rack Moves

 

Rack is Stationary

Symbol Description Units

JDM

Inertia of drive mechanism

kg-m2

TDM

Torque of drive mechanism

Nm

aDM

Rotational acceleration

rad/s2

h

Efficiency of drive mechanism

1

q

Incline angle above horizontal

o

g

Acceleration due to gravity = 9.81

m/s2

m

Rack friction coefficient

 

mLoad

Mass of load + payload

kg

mCB

Mass of counterbalance

kg

mRack

Mass of rack

kg

rPinion

Radius of pinion

m

mPinion

Mass of pinion

kg

JPinion

Inertia of pinion

kg-m2


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