### Author Topic: How to calculate torque  (Read 582 times)

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#### jismal

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##### How to calculate torque
« on: February 12, 2019, 09:13:20 am »
Hello Guys

Could you please help me selecting the motor. I need to know the torque required for the motor.
#1 Cylinder is about 1.5kg
#2 and the l clamp is of 2kg

#### madires

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##### Re: How to calculate torque
« Reply #1 on: February 12, 2019, 10:45:48 am »
Basic physics:
F = m*a  (in this case: a = g)
M = h * F

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#### Mechatrommer

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• reassessing directives...
##### Re: How to calculate torque
« Reply #2 on: February 12, 2019, 11:08:03 am »
torque = force x length
gravitational force as madires stated = m.g (mass x gravitational acceleration) = weight.

you need to breakdown your system into several simpler parts so you can determine their centre of gravity (COG) one by one. from there you can get length from COG to rotor and perpendicular length to vector of gravity. multiply weight with that perpendicular distance, add them all for every breakdowned parts (additive if same rotational direction, subtractive if counter rotation) you'll get total effective gravitational torque... well, for longer answer... attend a class.

« Last Edit: February 12, 2019, 11:09:48 am by Mechatrommer »
It's extremely difficult to start life.. one features of nature.. physical laws are mathematical theory of great beauty... You may wonder Why? our knowledge shows that nature is so constructed. We simply have to accept it. One could describe the situation by saying that... (Paul Dirac)

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#### Nusa

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##### Re: How to calculate torque
« Reply #3 on: February 12, 2019, 11:53:04 am »
Torque required for the motor to do what in how much time?
You need to define the task the motor is required to accomplish.

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