The formula to calculate the Maximum Efficiency of Spiral Gears is:
\[ \eta = \frac{\cos(\theta + \Phi) + 1}{\cos(\theta - \Phi) + 1} \]
Where:
The Efficiency of an electric motor is defined as the ratio of usable shaft power to electric input power.
Let's assume the following values:
Using the formula:
\[ \eta = \frac{\cos(0.50614548307826 + 0.41887902047856) + 1}{\cos(0.50614548307826 - 0.41887902047856) + 1} \]
Evaluating:
\[ \eta = 0.802434263893915 \]
The Efficiency is 0.802434263893915.
| Shaft Angle (rad) | Angle of Friction (rad) | Efficiency |
|---|---|---|
| 0.4 | 0.41887902047856 | 0.841595176557 |
| 0.45 | 0.41887902047856 | 0.823040735318 |
| 0.5 | 0.41887902047856 | 0.804678908855 |
| 0.55 | 0.41887902047856 | 0.786487550733 |