Pulley force saving calculation formula
Formula: s=hn. V rope = n*V object F pull = (1/n)*G total
s: the distance at which the free end of the rope moves. V-rope: The speed at which the rope moves (rise/fall) at the free end
h: The height at which the weight is lifted. V object: The speed at which the object moves (rise/fall)
n: The number of rope segments that bear load. G: weight of object + pulley weight (G object + G slip).
Secondly, determine the number of pulleys according to requirements. The principle is: general: two ropes are equipped with a moving pulley.
Formula: s=hn. V rope = n*V object F pull = (1/n)*G total
s: the distance at which the free end of the rope moves. V-rope: The speed at which the rope moves (rise/fall) at the free end
h: The height at which the weight is lifted. V object: The speed at which the object moves (rise/fall)
n: The number of rope segments that bear load. G: weight of object + pulley weight (G object + G slip).
Secondly, determine the number of pulleys according to requirements. The principle is: general: two ropes are equipped with a moving pulley.
Formula: s=hn. V rope = n*V object F pull = (1/n)*G total
s: the distance at which the free end of the rope moves. V-rope: The speed at which the rope moves (rise/fall) at the free end
h: The height at which the weight is lifted. V object: The speed at which the object moves (rise/fall)
n: The number of rope segments that bear load. G: weight of object + pulley weight (G object + G slip).
Secondly, determine the number of pulleys according to requirements. The principle is: general: two ropes are equipped with a moving pulley.
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