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Thrust Calculations<br />
Total Thrust Calculations<br />
Terms and (units)<br />
Variables<br />
THRUST = Total linear force-lbf (N)<br />
F friction = Force from friction-lbf (N)<br />
Ø<br />
tacc<br />
= Angle of inclination - deg....................... = ________<br />
= Acceleration time - sec............................. = ________<br />
F acc<br />
= Acceleration force-lbf (N)<br />
v<br />
= Change in velocity - in/sec (m/s)....... = ________<br />
F gravity<br />
= Force due to gravity-lbf (N)<br />
µ = Coefficient of sliding friction................. = ________<br />
F applied = Applied forces-lbf (N)<br />
W L<br />
= Weight of Load-lbm (kg)......................... = ________<br />
386.4 = Acceleration of gravity - in/sec 2 (9..8 m/sec 2 )<br />
F applied = Applied forces-lbf (N)................................ = ________<br />
Thrust Calculation Equations<br />
THRUST = [ F friction ] + [ F acceleration ] + F gravity + F applied<br />
THRUST = [ W L x µ x cosø ] + [( W L /386.4) x (v / t acc )] + W L sinø + F applied<br />
THRUST = [( )x( )x( )] + [( /386.4) x ( / )] + [( ) ( )] + ( )<br />
THRUST = [ ] + [( ) x ( )] + [ ] + ( )<br />
= _________________ lbf.<br />
Calculate the thrust for each segment of the move profile. Use those values in calculations below.<br />
Use the units from the above definitions.<br />
Cubic Mean Load Calculations<br />
3 3<br />
3 F 1 S 1 + F 2 S 2 3 3<br />
+ F 3 S 3 + F 4 S 4<br />
S 1 + S 2 + S 3 + S 4<br />
F 1 = ____________ S 1 = ____________ F 13 S 1 = ____________<br />
F 2 = ____________ S 2 = ____________ F 23 S 2 = ____________<br />
F 3 = ____________ S 3 = ____________ F 33 S 3 = ____________<br />
F 4 = ____________ S 4 = ____________ F 43 S 4 = ____________<br />
Move Profiles may have more or less than four components. Adjust your calculations accordingly.<br />
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