Coupling torque

public

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

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Required torque

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

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Admin

Electrical motor nominal torque

public

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

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Motor nominal torque

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

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Admin

Euler's number

public

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Euler's number

$$ e = {2.71828} $$

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Admin

Gear module

public

Gear module from reference diameter and number of teeth

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Gear module

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

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Admin

Gear module

public

Gear module from reference pitch

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Gear module

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

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Admin

Gear reduction ratio

public

Reduction ratio of two gear wheels using number of teeth

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First stage ratio

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

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Admin

Gearbox reduction ratio

public

Reduction ratio of 3 stage gearbox

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Three stage gearbox ratio

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

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Rope reeving efficiency

public

Calculate efficiency of rope reeving arrangement

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Efficiency

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

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Admin

Rope sheave efficiency

public

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

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Sheave efficiency

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

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Admin

Wire rope breaking force

public

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

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Minimum required breaking force

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

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Admin