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Engineering Calculator
Elevator
Calculation
Elevation
Input
Drive Pulley Diameter
D
P
=
mm
Elevator Platform Mass
m
ca
=
kg
Counterweight Mass
m
co
=
kg
Mass to Lift
m
lo
=
kg
Linear Speed
v=
m/s
Acceleration Time
t
a
=
s
Service Factor
1.5
K
A
=
Elevator Efficiency
0.8
η
e
=
Max. Motor Speed During Cycle
n
1
=
rpm
Motor Moment of Inertia
J
M
=
kg·cm
2
Gearbox Efficiency
η
g
=
Gearbox Moment of Inertia
0
J
R
=
kg·cm
2
Positioning Accuracy
A
p
=
mm
The formulas used for these calculations are available in
this PDF
.
Results
Machine
System Efficiency
η
t
=
Net mass
m=
kg
Weight Force
F
w
=
N
Acceleration Force
F
a
=
N
Total Force
F
T
=
N
Inertias
Total Inertia as Seen by the Motor
J
T1
=
kg·m
2
Load to Motor Inertia Ratio
Λ=
Kinematics
Acceleration
a=
m/s
2
Pulley Rotational Speed
n
p
=
rpm
Motor
Motor Power
P
1
=
kW
Required Motor Torque
T
m
=
N·m
Gearbox
Ideal Gearbox Ratio
i=
Ideal Gearbox Backlash (arcmin)
Δφ=
'
Required Gearbox Output Torque
T
2
=
N·m
Required Gearbox Output Torque, Adjusted for Service Factor
T
2KA
=
N·m
Buttons
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Diagrams
Elevation
