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Calculates coupling torque requirements based on electric motor nominal torque and application safety factor.

$$ T_{cn} = {T_n . f_s} $$

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Electrical motor nominal torque calculation based on motor nominal power and rotational speed.

$$ T_n = {9550 . \left({ P_n \over n_n }\right)} $$

public

$$ e = {2.71828} $$

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Gear module from reference diameter and number of teeth

$$ m_{gd} = {d_r \over z_g} $$

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Gear module from reference pitch

$$ m_{gp} = {p_r \over \pi} $$

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Reduction ratio of two gear wheels using number of teeth

$$ i_{gr1} = {z_2 \over z_1} $$

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Reduction ratio of 3 stage gearbox

$$ i_{gb3} = {i_{gr1} . i_{gr2} . i_{gr3}} $$

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Calculate efficiency of rope reeving arrangement

$$ \eta_{reeving} = {\eta_{sheave} ^ \left({ n_{sheaves} }\right)} $$

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Calculates sheave efficiency in a rope reeving arrangement based on Euler-Eytelwein equation

$$ \eta_{sheave} = {1 \over \left({ e ^ \left({ \mu . \theta }\right) }\right)} $$

public

Calculate minimum required breaking force of a wire rope for a given reeving arrangement and a safety factor

$$ F_{breq} = {\left({ P_{load} . 9.81 . s_f }\right) \over \left({ n_{falls} . \eta_{reeving} }\right)} $$