| Electronics > Beginners |
| Physics/Mechanics, converting torque to rpm |
| (1/1) |
| nForce:
I would like to know what is "mechanical dynamic equation" in mechanics and engineering to convert from torque to rpm? I know the relation T = J*alpha. But how to include motor characteristics for example slip (induction motor), friction, number of poles, mutual inductance? Thanks. |
| ArthurDent:
Here is an explanation of the relationship between torque/RPM but your question appears to be multi-part, too general, and not easy to solve in a brief time. http://www.epi-eng.com/piston_engine_technology/power_and_torque.htm |
| IanB:
--- Quote from: nForce on July 26, 2019, 08:18:49 pm ---I would like to know what is "mechanical dynamic equation" in mechanics and engineering to convert from torque to rpm? I know the relation T = J*alpha. But how to include motor characteristics for example slip (induction motor), friction, number of poles, mutual inductance? --- End quote --- In the physics of linear motion you have: (power) = (force) x (speed) There is a direct equivalent for rotational motion: (power) = (torque) x (rotational speed) In each case you have to use consistent units of measure. So for linear motion you may have: power [W] = force [N] x speed [m/s] For rotational motion: power [W] = torque [N m] x rotational speed [rad/s] These are the mechanical equations. For electrical equations you will need to consult an electrical engineering text. |
| ahbushnell:
--- Quote from: IanB on July 26, 2019, 09:54:46 pm --- --- Quote from: nForce on July 26, 2019, 08:18:49 pm ---I would like to know what is "mechanical dynamic equation" in mechanics and engineering to convert from torque to rpm? I know the relation T = J*alpha. But how to include motor characteristics for example slip (induction motor), friction, number of poles, mutual inductance? --- End quote --- In the physics of linear motion you have: (power) = (force) x (speed) There is a direct equivalent for rotational motion: (power) = (torque) x (rotational speed) In each case you have to use consistent units of measure. So for linear motion you may have: power [W] = force [N] x speed [m/s] For rotational motion: power [W] = torque [N m] x rotational speed [rad/s] These are the mechanical equations. For electrical equations you will need to consult an electrical engineering text. --- End quote --- on the money |
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