LinX Series Linear Motor - User Guide
36
D-000168 Rev 02
ANCA Motion
Appendix
9
Motor Selection Guide
9.1
Application Continuous Force Calculation
9.1.1
Example
The following example demonstrates calculation of a motor duty cycle simple positioning move with a trapezoidal
velocity profile. The profile is broken up into sections i.e. acceleration, constant velocity and deceleration in order
to determine the RMS force and duty cycle.
A
cc
el
er
at
io
n
D
ec
ele
ra
tio
n
Constant Velocity
Velocity
Time
1 m/s
0.2 sec
1.2 sec
2.2 sec
Load Mass = 90kg
Forcer Mass = 10kg
Coefficient of Friction (µ) = 0.005
Friction Force = 10N
Figure 9-1 - Positioning example velocity profile
In this example, friction is taken as a combination of the Coefficient of Friction (µ) and a constant force.
( )
Referring to
Figure 9-1
, the positioning move can be broken down into the following segments:
Acceleration:
( )
Constant Velocity:
Deceleration:
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