IAI America LSA-W21SS - Manual (Page 31)

17
10. Selection Conditions
When using a large linear servo actuator, you must ensure that the actuator satisfies the following two
conditions.
Condition [1]
The thrust required for acceleration must not exceed the maximum thrust of the large
linear servo actuator.
Condition [2] The thrust during continuous operation must not exceed the rated thrust of the large
linear servo actuator.
The above conditions are explained by using a trapezoid
operation as an example.
The above operation pattern can be expressed differently
in a graph where the vertical axis represents thrust.
t: Operation time per cycle
(sec)
ta: Acceleration time (sec)
tf:
Moving time at constant
speed (sec)
td: Deceleration time (sec)
tc: Stabilization
time
Fa: Thrust required for
acceleration (N)
Ff: Traveling resistance (N)
Fd: Thrust required for
deceleration (N)
Speed
Time
Thrust
Time